Drag the text elements below into the gray boxes to create an equation that calculates the mass of CH, required to create 24.0 g of H₂O.​

Answers

Answer 1

The mass of CH₄ required to create 24.0 g of H₂O is 10.67 g

Balanced equation

CH₄ + 2O₂ -> CO₂ + 2H₂O

The following were obtained from the balanced equation:

Molar mass of CH₄ = 12 + (1 × 4) = 16 g/mol Mass of CH₄ from the balanced equation = 1 × 16 = 16 gMolar mass of H₂O = (2 × 1) + 16 = 18 g/mol Mass of H₂O from the balanced equation = 2 × 18 = 36 g

From the balanced equation above,

36 g of H₂O were produced from 16 g of CH₄

How to determine the mass of CH₄ required

From the balanced equation above,

36 g of H₂O were produced from 16 g of CH₄

Therefore,

24 g of H₂O will be produced from = (24 × 16) / 36 = 10.67 g of CH₄

Thus, 10.67 g of CH₄ is needed for the reaction

Learn more about stoichiometry (mass-mass relationship):

https://brainly.com/question/9589928

#SPJ1

Complete question:

See attached photo

Drag The Text Elements Below Into The Gray Boxes To Create An Equation That Calculates The Mass Of CH,

Related Questions

You carefully weigh out 15.00 g of CaCO3 powder and add it to 60.75 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 69.60 g . The relevant equation is

CaCO3(s)+2HCl(aq)→H2O(l)+CO2(g)+CaCl2(aq)

Assuming no other reactions take place, what mass of CO2 was produced in this reaction?

Answers

According to the law of conservation of mass, the mass of CO₂ formed is 6.15 g.

What mass of Carbon dioxide, CO₂ is produced from the given reaction between 15.00 g of CaCO3 powder and add it to 60.75 g of HCl solution?

The mass of  Carbon dioxide, CO₂ is produced from the given reaction between 15.00 g of CaCO3 powder and add it to 60.75 g of HCl solution is determined as follows:

The mass of the calcium carbonate, CaCO₃ reacting = 15.0 g

Mass of HCl solution reacting = 60.75 g

Total mass of reactants = 60.75 g + 15.0 g

Total mass of reactants = 75.75 g

On addition of the calcium carbonate to the HCl solution, bubbles of carbon dioxide gas, CO₂, were observed and the gas allowed to escape.

Equation of the reaction: CaCO₃ (s) + 2 HCl (aq) → CaCl₂ (aq) + H₂O (l) + CO₂ (g)

Mass of resulting solution = 69.60 g

According to the law of conservation of mass, mass of product = mass of reactant

Therefore, mass of CO₂ formed = 75.75 g - 69.60 g

mass of CO₂ formed = 6.15 g

Learn more about law of conservation of mass at: https://brainly.com/question/19038178

#SPJ1

a quarter made predominantly of silver (density=10.5 g/mL), was determined to have a mass of 6.25g. what is the volume of the quarter?

Answers

Taking into account the definition of density, the volume of the quarter is 0.5952 mL.

Definition of density

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space and it is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density= mass÷ volume

Volume of the quarter

In this case, you know that:

Density= 10.5 g/mLMass= 6.25 g

Replacing in the definition of density:

10.5 g/mL= 6.25 g÷ volume

Solving:

10.5 g/mL× volume= 6.25 g

volume= 6.25 g÷ 10.5 g/mL

volume= 0.5952 mL

In summary, the volume of the quarter is 0.5952 mL.

Learn more about density:

brainly.com/question/952755

brainly.com/question/1462554

#SPJ1

40 POINTS!!!

Listed in the Item Bank are key terms and expressions, each of which is associated
with one of the columns.

Choose the number associated with Extensive or Intensive
for each characteristic in the column. Order does not matter.

Extrinsic properties (also called extensive) are directly related to the amount of
material being measured.

Intrinsic properties (also called intensive) are those which are independent of the
amount of matter present.

Volume
Density
Mass
Temperature
Length
Melting Point
Color
Boiling Point
Luster

Answers

Answer:

ddddddfrvtrnsyjemn

Explanation:

dddddddddddd

look at the screenshot

A 1.0 mole sample of fluorine gas at 25 °C has an average molecular velocity of 415 m/s. What is the total KE of the gas sample? Report your answer in kilojoules to the nearest tenth.

Answers

The total kinetic energy of the gas sample is 3.3 KJ

What is kinetic energy?

This is the energy possessed by an object in motion. Mathematically, it can be expressed as:

KE = ½mv²

Where

KE is the kinetic energy m is the mass v is the velocity

How to determine the mass of the fluorine gasMolar mass of fluorine gas = 38 g/molMole of fluorine gas = 1 moleMass of fluorine gas = ?

Mass = mole × molar mass

Mass of fluorine gas = 1 × 38

Mass of fluorine gas = 38 g

How to determine the KE of the gas sampleMass (m) = 38 g = 38 / 1000 = 0.038 KgVelocity (v) = 415 m/sKinetic energy (KE) =?

KE = ½mv²

KE = ½ × 0.038 × 415²

KE = 3272.275 J

Divide by 1000 to express in kilojoule

KE = 3272.275 / 1000

KE = 3.3 KJ

Learn more about energy:

https://brainly.com/question/10703928

#SPJ1

the NCC Libraries
What atoms listed below would form a covalent bond with each other?
-F (fluorine) and K (potassium)
-C (carbon) and Cl (chlorine)
-Ag (silver) Cu (copper)
-Ag (silver) and Br (bromine)
-Na (sodium) and Mg (magnesium)

Answers

Answer: F,C,NA

Explanation:

bc it is

Rounding off 0.072251 to four significant figures

Answers

0.072251 contains 5 sigificant figures and 6 decimals. 0.072251 rounded to 4 sig figs is 0.0723, to 3 sig figs is 0.072, and to 2 sig figs is 0.07. To count the number of sig figs in 0.072251, strip the leading insignificant digits (0.0) to get the significant digits (72251).

0.072251

Explanation:

The Sig Figs would be 5 (0.072251)

In Decimals 6 (0.072251)

Scientific Notation 7.2251 × 10-2

E-Notation 7.2251e-2

Does a small standard deviation mean that the results of the experiment were successful?

True or False

Answers

Answer: Ture

Explanation: A small standard deviation means that the data is more clustered around the mean (More reliable).

How many atoms are in 100.0 grams of neon, Ne?

Answers

Answer: 20.179 grams

I had to do a project on this recently, so here is your answer!

Hope this is helpful!

Answer:

2.894 x 10²⁴ atoms Ne

Explanation:

To find the amount of neon atoms, you need to (1) convert grams to moles (using the atomic mass) and then (2) convert moles to atoms (using Avogadro's Number). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units (the desired unit should be in the numerator of the ratios in this case). The final answer should have 4 sig figs like the given value (100.0 = 4 sig figs).

Atomic Mass (Ne): 20.180 g/mol

Avogadro's Number:

6.022 x 10²³ atoms = 1 mole

 100.0 g Ne             1 mole             6.022 x 10²³ atoms
--------------------  x  -----------------  x  -------------------------------  =  2.894 x 10²⁴ atoms
                               20.180 g                    1 mole

Question Completion Status:
PUESTIVITY
Refer to Activity 2 in Lab 3A to answer the question below
Two amino acids are shown below in the process of forming a peptide bond (labeled). The hydroxyl (-OH circled in red) is being removed from the carboxyl group of the first amino acid. A hydrogen
atom (-H circled in red) is being removed from the amine group from the second amino acid. The removed -OH and -H will form water (H20)
Question
What chemical reaction takes place when water is removed to form a bond (as is being shown below)?

Answers

Explanation:

Refer to Activity 2 in Lab 3A to answer the question below

Two amino acids are shown below in the process of forming a peptide bond (labeled). The hydroxyl (-OH circled in red) is being removed from the carboxyl group of the first amino acid. A hydrogen

atom (-H circled in red) is being removed from the amine group from the second amino acid. The removed -OH and -H will form water (H20)

Question

What chemical reaction takes place when water is removed to form a bond (as is being shown below)?

the length of a soccer field; 120. m (three significant figures), to inches
given the following equivalences:
1 in 2.54 cm
=
1 ft = 12 in

Answers

When we convert 120 meter to feet we obtain 393.6 feet.

How do you convert from meter to feet?

Unit conversions is very important in science. It is important that we are able to express a value in different units as this is able to ease the process of making calculations.

We know that;

1 meter = 3.28 foot

120 meter = 120 meter * 3.28 foot/1 meter

= 393.6 feet

Thus, when we convert 120 meter to feet we obtain 393.6 feet.

Learn more about unit conversions:https://brainly.com/question/20038430

#SPJ1

Direction: Solve the polarity of the following compounds by subtracting the electronegativity of the compounds. Determine their polarity and type of compound based on the answer.

1) CH2CI1
2) CH3OH
3) OF2
4) CCI4
5) BF3

Answers

Polarity is the distribution of electrical charge among the atoms connected by a chemical bond.

1. CH2CL- Carbon has an electronegativity of 2.5, hydrogen has a 2.2 electronegativity, and the chlorine atom has a 3.1 electronegativity. Their electronegativities differ by 0.3 for C-H and 0.6 for C-Cl. The fact that dichloromethane is a polar molecule is therefore confirmed.

2. CH3OH- The C-O bond has a difference in electronegativity of 3.44 - 2.55 = 0.89, which cannot be disregarded. The C-O bond is hence polar. The O-H bond is polar because the difference in electronegativity is 3.44 - 2.2 = 1.24.

3. OF2 - Two O-F covalent bonds can be found in OF2 O F 2. Oxygen has an electronegativity of 3.5. Fluorine has an electronegativity of 4.0. Therefore, there is a 0.5 discrepancy between the electronegativity values. Thus OF2 is polar.

4. CCl4 - Carbon tetrachloride (CCl4) is a non-polar molecule with µ=0

5. BF3 - It is more than 0.5 because the difference between the electronegativity values of B and F is equivalent to 1.94 (3.98 - 2.04 = 1.94). Therefore, each B-F bond in the molecule of boron trifluoride (BF3) is polar.

To learn more about polarity refer- https://brainly.com/question/8229259

#SPJ9

2.4.5 x 10³ dm³ to m³

Answers

Answer:

The conversion factor is 0.001; so 1 cubic decimeter = 0.001 cubic meters. In other words, the value in dm3 divide by 1000 to get a value in m3.

Explanation:

Drag each tile to the correct box. Based on your observations in this task, rank the three types of substances according to the strength of the forces between particles, from weakest to strongest. Tiles polar substancesnonpolar substancesionic substances Sequence <

Answers

Intermolecular force is the force of attraction that holds the particles in the atom together. The force referred to in the question is the force that binds the various elements together when they come together.

The intermolecular forces presented in the answer options in order of strength to weakness are ion-dipole hydrogen bonds dipole-dipole and van der Waals forces. The dipole-dipole interaction is the strongest intermolecular attraction. These are the weakest intermolecular forces and exist between all types of molecules, whether ionic or covalent, polar or non-polar.

Solids usually have the strongest intermolecular forces compared to liquids and gases. In solids, they are incompressible and dense because the particles are close together. The weakest intermolecular force is the London dispersion force. London Dispersion Force The London dispersion force is also known as the induced dipole induced dipole because it is a temporary attractive force that generates a temporary dipole. London dispersion exists in nonpolar monatomic gases.

Learn more about Intermolecular force here:-https://brainly.com/question/14220340

#SPJ1

Answer:

nonpolar substance < polar substance < ionic substance

Explanation:

Answer key

A substance has a specific gravity of 0.841. What is the mass (in dg) of 24.5 mL of this substance?

Answers

The mass (in dg) of the 24.5 mL of the substance having a specific gravity of 0.841 is 206.045 dg

We'll begin by obtaining the density of substance. This can be obtained as follow:

Specific gravity = 0.841Density of water = 1 g/mLDensity of substance =?

Density of substance = Specific gravity × density of water

Density of substance = 0.841 × 1

Density of substance = 0.841 g/mL

How to determine the mass of the substance

The mass of the substance can be obtained as illustrated below:

Density of substance = 0.841 g/mLVolume of substance = 24.5 mLMass of substance =?

Density = mass / volume

Cross multiply

Mass = Density × Volume

Mass of substance = 0.841 × 24.5

Mass of substance = 20.6045 g

Multiply by 10 to express in dg

Mass of substance = 20.6045 × 10

Mass of substance = 206.045 dg

Learn more about density:

https://brainly.com/question/952755

#SPJ1

An object weighs 15.50 grams the object was placed in water the initial volume of the water was 12.5ml and the final volume was 16.0ml after the object was placed inside what is the density of the object

Answers

The density of the object weighing 15.50 g  when placed inside the water having initial volume 12.5 mL and the final volume 16.0 mL is 4.42 g/mL.

Density is defined as the mass of a substance per unit of its volume. It is denoted by a Greek symbol ρ. Density is the mass of a substance divided by its volume. It is given by -

                                              ρ = m

                                                      v

where,

ρ = density

m = mass

v = volume

Given data :

Mass (m) = 15.50 g

Volume (v) = (Final volume - initial volume)

               v = 16.0 mL - 12.5 mL = 3.5 mL

Putting the values in above formula,

Density = mass  

                volume

Density = 15.50 = 4.42 g/mL

                  3.5

The density of object is found to be 4.42 g/mL

To learn more about density,

brainly.com/question/28361318

#SPJ1

What is the numerical value of 1.2 × 1.222? Express your answer using the correct number of significant figures.

Answers

Using simple multiplication, we can conclude that 1.5 is the numerical value of 1.2 × 1.222.

What is numerical ?

When solving mathematical analysis issues, numerical analysis is the study of methods that employ numerical approximation rather than symbolic manipulation (as distinguished from discrete mathematics). The study of numerical techniques aims to identify approximate rather than precise answers to issues.

Numerous engineering and physical science disciplines, as well as the life and social sciences, as well as commerce, the arts, and even medicine, use numerical analysis.

The use of more complex numerical analysis is now possible thanks to the rise in computing power, which also enables the creation of intricate and accurate mathematical models for use in engineering and science. Ordinary differential equations, which are used in celestial mechanics to forecast the motion of planets, stars, and galaxies, are examples of numerical analysis.

To learn more about numerical from the given link: https://brainly.com/question/13162939

#SPJ4

How many atoms are in 1.50 moles of lithium, Li?

Answers

Answer:

1 LITHIUM= 6.022140857×1023 atoms

0.50 LITHIUM =  3.01 × 102^3

ADD THEM TOGETHER AND YOU GET YOUR ANSWER.

Explanation:

All of the following changes to a metal are physical changes except

A: polishing
B: bending
C: melting
D: rusting

Answers

It would be B bending
D, rusting is a chemical change.

Li+ has larger radius than Li true or false

Answers

Answer:

true I believe

Explanation:


Initially, the volume of water in a graduated cylinder is 15.35 mL. When a 12.91-gram piece of copper is dropped into this cylinder, the water level goes. Find the final water reading in the graduated cylinder if the density of copper is 8.96 g/mL.

Answers

The final water reading in the graduated cylinder if the density of copper is 8.96 g/mL is 16.79mL

What is the relation between density, and volume?

Density is defined as mass per unit volume. Density and volume have a directly proportional relationship. That is, any change in volume causes a change in density and vice versa.

Find the final water reading in the graduated cylinder

[tex]D=\frac{M}{V}[/tex]

where,

D= density

M= mass

V= volume

volume due to copper pieces

V= M/D

V=12.91g/8.96

 =1.440

find volume = original volume + displaced volume

                    = 15.35 + 1.440

                    = 16.79mL

The final water reading in the graduated cylinder if the density of copper is 8.96 g/mL is 16.79mL

Learn more about Density here:-

https://brainly.com/question/5995838

#SPJ9

Which is the MOST important safety measure to follow when using an acid in a classroom laboratory?

Answers

The most important safety measure to follow when using an acid in a classroom laboratory is wearing gloves, wear face shield and protective clothing etc

On performing experiments in a lab, then it is necessary to follow the instructions  of the teacher and safety measures thoroughly so that any accident will not lead to any a major injury kind. Wearing gloves, goggles, and other safety gear is the minimum requirement for doing an experiment while the teacher is not present. protective clothing.To guarantee appropriate protection from concentrated acid spills, you must wear a face shield over your safety glasses, nitrile gloves (if available), and neoprene aprons.

To learn more about face shield visit:

https://brainly.com/question/2072002

#SPJ1

A classical radio station broadcasts at 93.5 MHz. Find the wavelength of this radiation, in meters, and the energy of one of these photons, in J

Answers

Answer
E=6.20*10^-26 J photons

Question 3 of 10
What is nuclear fission?

Answers

Answer:

Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radioactive decay

Which statements are true about balancing chemical equations?

Check all that apply.

A. Balancing chemical equations does not involve trial and error.
B. Balancing chemical equations involves trial and error.
C. Atoms that are in only one of the reactants and only one of the
products should be done last.
D. Single atoms should be done last.

Answers

Answer:

statement C is the correct answer

50 points
Which elemental family receives electrons in an ionic bond?
Responses

noble gases

metals

halogens

nonmetals

Answers

Answer:    es no metales

Explanation:

The density of nonadecane, C₁9H40, is 0.7860 g/mL. Calculate the volume occupied by 4.605 moles of nonadecane.
volume= mL

Answers

The volume of nonadecane that has a density of 0.7860 g/mL is 1573.2mL.

How to calculate volume?

The volume of a substance can be calculated by dividing the mass of the substance by its density. That is;

Volume = mass ÷ density

According to this question, nonadecane has a density of 0.7860 g/mL and has 4.605 moles.

First we calculate the mass of nonadecane as follows:

mass = 4.605 mol × 268.518 g/mol

mass = 1236.53g

Volume = 1236.53g ÷ 0.7860 g/mL = 1573.2mL

Therefore, the volume of nonadecane that has a density of 0.7860 g/mL is 1573.2mL.

Learn more about mass at: https://brainly.com/question/14651380

#SPJ1

Combining 0.395 mol [tex]Fe_{2} O_{3}[/tex] with excess carbon produced 11.4 g Fe.
2Fe+3CO
[tex]Fe_{2} O_{3} +3C[/tex] ⟶ [tex]2Fe + 3CO[/tex]
What is the actual yield of iron in moles?
actual yield: ________ mol
What is the theoretical yield of iron in moles?
theoretical yield: ________ mol
What is the percent yield?
percent yield: ________%

Answers

The actual yield of iron in moles is 0.2 mole and theoretical yield of iron is 0.8 mole. The percent yield of iron is 25%.

What is yield?

Yield can be defined as a measure of chemical reactions efficiency, as a ratio of mole of product to the mole of reactant.

Percent yield can be calculated as actual yield divided by theoretical yield, multiply by 100.

Molar mass of Fe is 55.84 g/moles

To calculate actual yield = mass/ molar mass

                                         = 11.4/55.84 = 0.2 moles

Theoretical yield = 0.395 x 2 = 0.8 moles

Percent yield % = actual yield/theoretical yield x 100%

                           = 0.2/0.8x100%

                           =  25%

Thus, the actual yield of iron in moles is 0.2 mole and theoretical yield of iron is 0.8 mole. The percent yield of iron is 25%.

To learn more about yield, refer to the link below:

https://brainly.com/question/2506978

#SPJ1

What is the frequency of the wave shown below assuming it is light (electromagnetic radiation)?

4.17 x 107 m

Answers

The frequency of the wave assuming it is light having compete distance as 4.17×10^7 m is 1.44×10^15 Hz

Wavelength:- It is defined as the distance between the two Consecutive Crest or trough. OR distance travelled by the wave to Complete one Complete Cycle.

The distance for completing two cycle is 4.17×10^7 m

so 2λ=4.17×10^7m

λ=2.085×10^-7m

Also f=c/λ

f=3×10^8/2.085×10^-7

f=1.44×10^15 Hz

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles is wavelength.The number of cycles or vibrations that a body in periodic motion experiences during one unit of time, as well as the number of waves that pass a given point in a unit of time is frequency.

To learn more about frequency visit:

https://brainly.com/question/14316711

#SPJ9

A chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing water, and find the volume change is 4.1 mL. If the metal weighs 4.5 g, what is the density of the metal in g / m * L ?

Answers

Taking into account the definition of density, the density of the metal is 1.097 g/mL.

Definition of density

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

The expression for the calculation of density is:

density= mass÷ volume

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

Density in this case

In this case, you know that:

Mass= 4.5 gVolume= 4.1 mL

Replacing in the definition of density:

density= 4.5 g÷ 4.1 mL

Solving:

density= 1.097 g/mL

In summary, the density of the metal is 1.097 g/mL.

Learn more about density:

brainly.com/question/952755

brainly.com/question/1462554

#SPJ1

A 10.4 g sample of CaSO4 is found to contain 3.06 g of Ca and 4.89 g of O. Find the mass of sulfur in a sample of CaSO4 with a mass of 65.8 g.

Answers

The mass of sulfur in a sample of CaSO4 with a mass of 65.8 g is 15.50g.

How to calculate mass of an element in a compound?

According to this question, a 10.4 g sample of CaSO4 is found to contain 3.06 g of Ca and 4.89 g of O.

This means that the mass of sulfur in the 10.4g of CaSO4 is 10.4g - (3.06g + 4.89g) = 10.4g - 7.95g = 2.45g

Next, we calculate the percent ratio of each element in the compound; CaSO4.

Ca = 3.06g/10.4g × 100 = 29.42%S = 2.45g/10.4g × 100 = 23.56%O = 4.89g/10.4g × 100 = 47.02%

According to this question, a sample of CaSO4 with a mass of 65.8 g is given. The mass of each element in this compound is as follows:

Ca = 29.42/100 × 65.8g = 19.36gS = 23.56/100 × 65.8g = 15.50gO = 47.02/100 × 65.8g = 30.94g

Therefore, the mass of sulfur in a sample of CaSO4 with a mass of 65.8 g is 15.50g.

Learn more about mass at: https://brainly.com/question/13672279

#SPJ1

Other Questions
Question 24 (2 points)What is power? (2 points)O aO bO cOdThe magnitude of a force needed to move an objectHow much work can be done in a given timeThe distance over time that an object movesThe energy needed to create work Math Jakob only Jake answer. How did Washington's Farewell Address influence American foreign policy? aThe United States contributed to the independence movements of neighboring colonies bThe United States moved steadily westward gaining new territory an forming new states cThe United States attempted to remain neutral with foreign powers through the nineteenth century dThe United States led efforts to form international organizations that would seek world peace Can someone please help me approximately percent of americans believe that crime has increased during the past year. 25.if CD 1 EF, m_HCE = 40 and mcHCD = 5x, find each missing value.Ka) =b) mZECH =c) mZHCD =d) nZGCF =e) ZECG =1 MZGCD =DH I NEED HELP ON THIS PLEASE!!!!!!! A group of soccer players think their coach is too strict. They begin making up and sharing stories online where they get revenge on the coach. The coach finds out and goes to police. The coach says the stories are threatening. The players say the stories are funny and a harmless way to release stress. They say that they wouldn't actually do anything.Based on the scenario, which statement is true? Nothing will happen, since the coach violated the privacy of the soccer players. Nothing will happen, since the players have the unlimited right to free expression. The players could be in trouble, since they cannot threaten the safety or rights of another. The coach could be in trouble, since strict rules unfairly limit the rights of the soccer players. What is 2 and 1/4 divided by 3/4? Which of the following statements is FALSE?a.Under the Mexican rule of Texas, the Mexican government regarded African Americans as equals.b.The Constitution of the Republic of Texas eliminated the rights of free African Americans.c.After annexation, the Texas government passed even stricter laws regarding slavery and African American rights.d.After annexation, the Texas government gave African Americans two years to leave the state or be sold. help me with my homrwork What architectural achievement of Nebuchadnezzar II is considered one of the Seven Wonders of the Ancient World? Ishtar Gate O Hebrew Temple Walls of Babylon Hanging Gardens of Babylon Why does the density of a substance stay constant even if the mass of the substance increases? 110x + 120x(2x-5)=1850 HELP PLS ITS URGENT! I just need an answer, thank you!! I will give brainliest!!!!! Evaluate: -X - y when x = -12 and y = 2 A. 16 B. -10 C. -14 D. 10 O E. 14 please help Todds apartment building has a statue hanging from the balcony. The statuebreaks off and falls to the sidewalk below. What energy conversion takesplace during the far? Compare "Eraser tattoo" and "Romeo and Juliet" What is an inference that can be made about Dr.Mesmer Consider the following information for a period of years: Arithmetic Mean Long-term government bonds 7.1 % Long-term corporate bonds 7.2 Inflation 4.2 a. What is the real return on long-term government bonds