!!MARKING BRAINLIEST!! Please help this is due at midnight!! No websites please just help me! :(

!!MARKING BRAINLIEST!! Please Help This Is Due At Midnight!! No Websites Please Just Help Me! :(

Answers

Answer 1

Answer:

I'll do the first one for you. The reason why I'm not going to do the rest is because this is pretty simple stuff. I'll explain how I got the answer, please read it ^^ the rest of the problems should be a breeze.

1. 5.454285714285714 liters, or approx. 5.45 liters

Explanation:

P1V2 = P2V2

P1 refers to the original pressure. V1 refers to the original volume, or the amount of space the gas takes up.

P2 and V2 refer to the final pressure or volume, accordingly.

You insert the values into the equation, like so:

(8.3)(46) = (70)(x)

Now, multiply.

381.8 = 70x

Use inverse operations to find the value of x. Divide 381.8 by 70 to isolate x.

381.8/70 = x

5.454285714285714 = x

The volume of the gas when the pressure is increased to 70.0 mm Hg is approximately 5.45 liters. Don't forget about the units at the end, when you write your final answer.

Important! When pressure increases, volume decreases, and vice versa. Volume and pressure for gases are inversely proportional. So even though the pressure increased, that doesn't mean the volume increases, too.

You can check your answers easily!

Just multiply your final answer by its corresponding pressure or volume and compare it to the other. I hope that made sense. Like so:

5.454285714285714 x 70 = 381.8

8.3 x 46 = 381.8

That makes P1V2 DOES equal P2V2, and your answer is correct.

I hope this helped in time for you to submit it before the deadline! Good luck.

Tips!

For #2: I'm pretty sure the mentioning of the temperature (25.0 °C) doesn't matter. You can ignore it, it won't affect your calculations.

For #4: the standard pressure in mm Hg (millimeters of mercury) is 760 mm Hg. That's your P2.


Related Questions

PLEASE HELP 20 PTS

what is the percent by volume of isopropyl alcohol in a solution that contains 24 mL of isopropyl alcohol in 1.1 L of water?

Answers

Answer:

[tex]2.18\%[/tex]

Explanation:

Volume of isopropyl alcohol = 24 mL

Volume of water = 1.1 L

Percentage of isopropyl alcohol is given by

[tex]\dfrac{\text{Volume of isopropyl alcohol}}{\text{Volume of isopropyl alcohol+Volume of water}}\times 100\\= \dfrac{24\times 10^{-3}}{1.1+2.4\times 10^{-3}}\times 100\\ =2.18\%[/tex]

The percent by volume of isopropyl alcohol in the given solution is [tex]2.18\%[/tex].

Occurs in many complex organisms such as plants, animals and fungi

Answers

Answer:

DNA

Explanation:

The eukaryotic cell participates in the formation of complex organisms and contains a nucleus, cytoplasmic organelles, and a cytoskeleton.

In a eukaryotic cell, DNA is contained in a compartment called the nucleus, which is enclosed by a membrane.

The answer should be DNA based on the wording of the question. Hopefully this helped a little bit.

Which of these is a molecule?
a. Ca
b. Mg
C. Na
D.H20
NEED A QUICK ANSWER!

Answers

The answer is D!!!
H2O is a molecule

3. A volume of gas at 1.65 atm was measured at 27°C and 343 mL. What will be the volume if the gas
is cooled to -12°C and the pressure is adjusted to 2.10 atm?

Answers

Answer:

Homework hint: P1V1 = nRT1 and V1, n, and R are constant. Remember to use Kelvin.

HELP 15-21 PLEASE!!!

Answers

Answer:

15. Lead (II) chloride

16. potassium chloride

17. Lithium oxide

18. Arsenious trioxide

19.Phosphorus tribromide

Explanation:

Answer:

ANSWER

Explanation:

Explain why has a higher boiling point than NH3

Answers

Explanation:

Melting point = -33.34°cboiling point=77.73°c

- The pit of an aqueous solution of NaOH is 12.9. What is the molarity of the solution?

Answers

Answer: The molarity of solution is 0.08 M

Explanation:

pH is the negative logarithm of hydrogen ion concentration. It tells abpout the acidity or basicity of a solution.

[tex]pH=-log[H^+][/tex]

also pH+pOH=14

given : pH of NaOH = 12.9

Thus pOH = (14-12.9) = 1.1

Thus [tex][OH^-]=10^{-1.1}=0.08M[/tex]

As [tex]NaOH\rightarrow Na^++OH^-[/tex]

As 1 mole of [tex]OH^-[/tex] is produced by = 1 mole of NaOH

Thus 0.08 moles of [tex]OH^-[/tex] are produced by = [tex]\frac{1}{1}\times 0.08=0.08[/tex] moles of NaOH

The molarity of solution is 0.08 M

Collision theory states that when two molecules collide with each other with sufficient energy and hit in the proper orientation, a
bond is formed. Which action will increase the rate of reaction in a closed container?
A)
adding an inert gas
B)
expand the volume
C)
increase the temperature
D
decrease the concentration

Answers

the answer is c.......

Answer:

c increase the temperature  

Explanation:

Predict Will you find starch in a plant leaf grown in the light? Why?

Answers

Answer:

You would find starch in a plant leaf.

Explanation:

This is due to the fact that when there is excess energy, it will be stored in plant tissue as starch.

If you were traveling from Earth to Neptune in a spaceship, what would
you see between Mars and Jupiter?

Imposters
little green men
Pluto
the asteroid belt

Answers

Answer:

I believe it would be Asteroid Belt

Explanation:

little green men and imposters seem very unlikely, and Pluto is definetely not between earth and Jupiter

Answer:

the asteroid belt

Explanation:

it orbits between mars and jupiter

Uma peça de metal de formato irregular feita de uma liga particular foi galvanizada com zinco usando uma solução de Zn(NO₃)₂. Quando uma corrente de 2,70 A foi usada, levou exatamente 1 hora para depositar uma camada de 0,015 mm de zinco na peça. Qual é a área total de superfície da peça? A densidade do zinco é de 7,14 g /cm³. Suponha que a eficiência seja 100%. MM (Zn) = 65,4 g/mol; 1 mol e = 96500 C.

Answers

No co hao mi cho cu lo who

Which indicator would show a pH change from 6 to 7? A. Red litmus indicator B. Methyl red indicator C. Phenol red indicator D. Blue litmus indicator

Please legitimate answers only

Answers

Answer:

The correct answer is Choice C.

(Phenol red indicator.)

Explanation:

Phenol red indicator is an organic dye that acts as an acid-base reaction indicator in the pH range of 6.8 to 8.4.

In acidic solutions, the color is purple, and in simple solutions, the color is red.

Hope this helps!

Please mark me as Brainlinieast.

Answer:

phenol red indicator

Explanation:

What element is being oxidized in the following redox reaction? Pb 2+(aq) + NH4 +(aq) - Pb(s) + NO3 (aq)
A. H
B. Pb
C. N
D. O ​

Answers

The answer for your question is c.

an substance that is being dissolved by another object?​

Answers

Answer:

Solute - The solute is the substance that is being dissolved by another substance. In the example above, the salt is the solute. Solvent - The solvent is the substance that dissolves the other substance.

Explanation:

A new organism is discovered. It is multicellular, heterotrophic, and does move on its own. To which two kingdoms could the organism belong?

Answers

Answer:It is a plant

Explanation:

A new organism is discovered. It is multicellular, heterotrophic, and does move on its own. The organism belong to Kingdom Animalia.

What do you mean by heterotrophs ?

A heterotroph is an organism that obtains energy and nutrients from other plants or animals. The term is derived from the Greek words hetero, which means "other," and trophe, which means "nourishment."

Fungi are multicellular, heterotrophic eukaryotes with chitinous cell walls. Kingdom Plantae contains autotrophic organisms with cellulosic cell walls, whereas Kingdom Animalia contains heterotrophic organisms without cell walls.

Animalia is a kingdom of multicellular, heterotrophic organisms. This kingdom includes humans and other primates, as well as insects, fish, reptiles, and a variety of other animals.

Thus, The organism belongs to Kingdom Animalia.

To learn more about the heterotrophs, follow the link;

https://brainly.com/question/25846728

#SPJ6

what is the difference between corrosion and rusting​

Answers

Answer:

Corrosion is the process of deterioration of materials as a result of chemical, electrochemical or other reactions. Rusting is a part of corrosion and is a chemical process which results in the formation of red or orange coating on the surface of metals. ... Rust or rusting can affect only iron and its alloys.

Explanation:

Which of the following statement is not true?

Answers

Answer: 2

Explanation: Greenhouse gases are very important in keeping our planet just right. If we have too many Greenhouse gases it would be too hot, but we can't eliminate all of them or it will be too cold

What variable represents thermal energy in the equation Q = mcΔT?
A.
The variable c
B.
The variable Q
C.
The variable T
D.
The variable m

Answers

Answer:

The variable Q

Explanation:

i just took the test and got it right.... i hope this helps :)

The variable Q represents thermal energy in the equation Q = mcΔT. Hence, option B is correct.

What is specific heat capacity?

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Q =  mcΔT

Q = heat energy

m = mass

c = specific heat capacity

ΔT = change in temperature

Hence, option B is correct.

Learn more about specific heat capacity here:

brainly.com/question/2530523

#SPJ2

What is the energy change per gram of ice when an iceberg composed of pure water, cp = 2.06 j/(gk, is heated from -25°c to -15°c?

Answers

Answer:

[tex]Q=20.6\frac{J}{g}[/tex]

Explanation:

Hello there!

In this case, according to the equation for the calculation of the heat during a heating process:

[tex]Q=mC(T_f-T_i)[/tex]

It is possible to compute it per gram of ice by just removing m from the equation by dividing at both sides. Next we plug in the given specific heat and the final and initial temperatures to obtain:

[tex]Q=2.06\frac{J}{g\°C}[-15\°C-(-25\°C)] \\\\Q=20.6\frac{J}{g}[/tex]

Best regards!

Weight is the measure of gravity on an object measured by a weight in Newtons. Weight changes if gravitational force changes.
Mass is the amount of kilogram in an object measured by a __________ in grams and does not change…it stays the _________.

Answers

Mass is an intrinsic property of matter and is measured in kilograms. The mass of a bird is a constant. A 15-gram bird is 15 grams, whether measured on the Earth, the Moon, or Mars. Weight is a measure ofthe force of gravity on a physical object and is measured in newtons.

Which is a function common to both the muscular and skeletal systems?

Answers

Answer:

please give me brainlist and follow

Explanation:

In the musculoskeletal system, the muscular and skeletal systems work together to support and move the body. The bones of the skeletal system serve to protect the body's organs, support the weight of the body, and give the body shape.

Answer:

B. bending of the arm

Explanation:


Balance the following equation
_MgF2 + _Li2CO3 -> _MgCO3 + _LiF

Answers

Answer:

1 MgF2 + 1 Li2CO3 --> 1 MgCO3 + 2 LiF

Explanation:

sub-atomic particles like negatively charged electrons, positively charged

protons and electrically ________ neutrons​

Answers

Answer:

neutral

Explanation:

There are three basic subatomic particles. These are;

Protons (positively charged)Electrons (negatively charged)Neutrons (neutral)

A neutron has no charge unlike the proton and the electron. It is present in the nucleus and contributes to the mass of the atom.

My teacher didn’t explain this. Please Help Me!!

Due to their low melting points nitrogen oxygen and helium are examples of which type of matter when at room
temperatures?

A. Gas
B.liquid
C.Plasma
D. Solid

Answers

A. Gas

Oxygen is a gas at room temperature

True or False: Energy can be created.
А
True
B
False

Answers

Answer:

False

Explanation:

Scientifically, energy can never be created or destroyed. However it can be transfered. This law is called The Law of Conservation of Energy.

Which of the following is a FALSE statement? *

A. Heat moves through solids by by conduction.
B. Molecules move faster in warmer substances.
C. Warm water is denser than cold water.
D. Heat moves through liquids and gases by convection.

Answers

Answer:

C: Warm water is denser than cold water

What is the Molar Mass of MgO?

Answers

Answer:

The answer should be 40.3044 g/mol

help cococococo cococococo doing this for the points or whatever it is cococo

Answers

Answer:

what is cocococococo?

Explanation:

isnt it like a plant for choclate?

Answer:

hhhhhhhh

Explanation:

help please. What type of reaction is this: barium nitrate --> barium oxide + nitrogen dioxide + oxygen

Answers

Answer:

Decomposition Reaction

Explanation:

Ba(NO₃)₂(s) ⇒ BaO(s) + N₂(g) + 3 O₂(g)

Barium nitrate decomposes into the chemical species that were used to create it.

Determinar el volumen de una solución en mililitros cuya concentración es 0,3 M en ácido sulfúrico y que contiene 1,5 moles del ácido

Answers

Answer:

V = 5000 mL

Explanation:

¡Hola!

En este caso, dado que la molaridad de una solution se calcula al dividir las moles por el volume de solución en litros, es posible calcular el volumen cuando se dividen las moles por la molaridad, tal y como se muestra a continuación:

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

Así, podemos reemplazar la molaridad y moles dadas para obtener:

[tex]V=\frac{1.5mol}{0.3mol/L}=5L[/tex]

Que en mililitros sería:

[tex]V=5L*\frac{1000mL}{1L}\\\\V=5000mL[/tex]

¡Saludos!

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