Write the empirical formulas for the following compounds:
a) C,H,O,
b)
boron trichloride
c)
methane
d)
CH20.
SOMEONE HELP ME PLEASEEE

Answers

Answer 1
I don’t not sure but best luck

Related Questions

Fill in the coefficients, help, please.

Answers

1,2,1,4 are your coefficients

please help meee Which is a product of the process shown?

Answers

Answer:

sugar i believe

Explanation:

Which image shows a foliated metamorphic rock?

light colored rock with fine grains and metallic luster.

Smooth green rock.

dark color rock with coarse grains in parallel layers.

Answers

Answer:

C

Explanation:

The answer is in the image.

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Walk in faith and trust in God!

How many moles 30.56g of Ca(OH)

Answers

Answer:

0.412 moles

Explanation:

No of moles =given mass /molar mass

30.56/74=0.412 moles

Note these are the number of moles of

Ca(OH)2 not Ca(OH)

boosting electrocatalytic oxygen evolution by synergistically coupling layered double hydroxide with mxene

Answers

Mxene as electro catalyst also have shown productive outcomes and stable performances due to their prominent electrical conductivity and hydrophilic surface.

Mxene are a class of two dimensional inorganic compound called mxene. because of its origin from the process of etching and exfoliating. automatically thin layers of aluminum from layered carbides. oxygen evolution reaction (OER) is cornerstone reaction of many renewable energy technologies. Cost-effective yet efficient electro catalysts are critical to overcome the high overpotential and sluggish kinetics of this process new type of non-precious metal electro catalyst for OER by synergistically coupling layered double hydroxides (LDH) with two-dimensional (2D) mxene with high conductivity and active surface.

Know more about electro catalytic oxygen evolution by synergistically coupling layered double hydroxide with mxene

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the pH of a solution of a is increased from 2 to 3 then the concentration of h + ions will become​

Answers

Answer:

The H+ concentration would decrease by 10 fold. From .01 to .001

Explanation:

This is due to how a pH of 2 is expressed in scientific notation as 10^-2 power when referring to H+ concentration so a pH of 3 would be 10^-3. Hence it would be 10 times smaller in concentration as the power increases to the negative power the smaller the concentration becomes.

How can biologic weathering result in chemical erosion?
plants transpire water vapor
bacteria release acids and other agents that break down rock
large herds trample rocks and break up soil
roots loosen soil and break rocks

Answers

Answer:

bacteria release acids and other agents that break down rock

Explanation:

One of the ways in which biological weathering results in chemical erosions is through bacteria releasing acids and other agents to break down a rock.

Weathering is defined as the physical disintegration and chemical decomposition of rocks to form sediments and soils.

The process of erosion removes the weathered materials from the earth surface.

Chemical weathering involves the decay of rocks by chemical means.

The bacteria is a biological organismAs it releases its acids and the rocks begin to break down, biological weathering takes places

When 8.0 moles of chromium react, how many moles of chromium (lll) oxide are produced?

Answers

Moles of chromium (lll) oxide produced : 4 moles

Further explanation

The reaction equation is the chemical formula of reagents and product substances

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

4Cr+3O₂⇒2Cr₂O₃

moles of Cr=8 moles

From the equation, mol ratio Cr : Cr₂O₃ = 4 : 2, so mol Cr₂O₃ :

[tex]\tt \dfrac{2}{4}\times 8=4~moles[/tex]

gher ord inking skills type questions: If a compound gives hydrogen ion and chloride ion in the solution state,
Write name and molecular formula of the compound.​

Answers

At normal temperature and pressure, hydrogen chloride (HCl), a gas composed of the element's hydrogen and chlorine, is a gas.

An aqueous solution of hydrogen chloride is what is known as hydrochloric acid, commonly referred to as muriatic acid. It has an unmistakably strong odor and is colorless. It is categorized as a powerful acid. In the digestive tracts of the majority of animal species, including humans, it is a part of the stomach acid. In the food, textile, metal, and rubber sectors, hydrogen chloride (HCl) is frequently employed as a bleaching agent to neutralize alkaline substances. When discharged into the soil, it is neutralized, and when it comes into contact with water, it hydrolyzes quickly.

Learn more about HCl here-

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Rashid belays net worth

Answers

His net Worth is almost $2.04 billion ,but I don’t think this is chemistry lol

PLZ PLZ PLZ HELPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

A weekly forecast is shown below. What type of front can be predicted to arrive on Sunday?

A.) Warm Front
B.) Stationary front
C.) Cold front
D.) Occluded front

Answers

answer: c
explanation

Answer:

cold front

Explanation:

Which of the following best describes a metallic bond?

Answers

Answer:the attraction between positive metal ions and interlocking electrons

Explanation: because I got it right

how many molecules are in 2.5 mol of NaCl?


(a) 1.51×10^24
(b) 146
(c) 1.51×10^23
(d) 4.15​

Answers

Answer:

1.51 x 10²⁴molecules

Explanation:

Given parameters:

Number of moles of NaCl  = 2.5moles

Unknown:

Number of molecules  = ?

Solution:

The number of molecules that can be found in a given mole is given as the Avogadro's constant;

       1 mole of substance  = 6.02 x 10²³ molecules

       2.5 mole of NaCl  = 2.5 x 6.02 x 10²³ molecules

                                       = 1.51 x 10²⁴molecules

A kid walking around with a balloon on a summer day when the temperature outside is 300 k contains the volume of 4 l goes into a walk in freezer with a temperature of 275 k to get an ice cream What will be the new volume to the balloon

Answers

Answer:

3.67 L

Explanation:

From the question given above, the following data were obtained:

Initial temperature (T1) = 300 K

Initial volume (V1) = 4 L

Final temperature (T2) = 275 K

Final volume (V2) =?

Thus, we can obtain the final volume (i.e the new volume) of the balloon by using the Charles law equation as shown below:

V1 /T1 = V2 /T2

4/300 = V2/275

Cross multiply

300 × V2 = 4 × 275

300 × V2 = 1100

Divide both side by 300

V2 = 1100 / 300

V2 = 3.67 L

Therefore, the new volume of the balloon is 3.67 L

why do you think neutrons are necessary in the nucleus of an atom?

Answers

Answer:

They help stablize the strucure of an atom.

Explanation:

Take into consider isotopes where there are more or less than the ideal amount of neurtrons. These isotopes are radioactive and unstable to the point hey are used as atomic bombs. So with the proper amount of nuetrons it helps the atom maintain structure and not degrade

Answer: they have an important role to keep the atom stable

Explanation:

since protons are positively charged, there is an incredibly strong repulsive force between all the protons in a nucleus

The relative atomic mass of an element is the mass of its atoms with that which element?Give the name?

Answers

The relative atomic mass of an element is the mass of its atoms with Carbon element.

What is Atomic mass?

The atomic mass of an element is defined as the average mass of the element.

Atomic mass is also defined as the mass of nucleus or it is the sum of atomic number and number of neutrons present in the atom of an element.

What is relative mass number?

Relative atomic mass is defined as the atomic mass compared to One-twelvth the mass of the one atom of carbon. Since, it is seen that it is comparison of atomic mass with 1/12 the mass of an atom of carbon therefore it is indicated as relative atomic mass.

Thus, we concluded that the relative atomic mass of an element is the 1/12 the mass of its atoms with Carbon element.

learn more about Relative atomic mass:

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Please help!!!!!!!!!!!

Answers

Answer:

b

Explanation:

and if that wrong let me know cause jm my science class its b

5.(03.01 LC)
Which two particles are present in the nucleus of an atom? (5 points)
Electrons and neutrons
Electrons and molecules
Protons and neutrons
Protons and electrons
6. (03.01 LC)
Thank you!

Answers

Answer:

Protons and neutrons

Explanation:

In the nucleus of an atom only the protons and neutrons are present. The extra-nuclear space is filled with electrons which are negatively charged.

Protons are the positively charged particles within an atomNeutrons do not carry any charges. Electrons are negatively charged

Only two of the subatomic particles are found in the nucleus of an atom. The particles are protons and neutrons.

Answer:

Protons and Neutrons

Explanation:

a sample of gas collected in the upper atmosphere of 0.75 atm is compressed into a 150.0 mL container at the same temperature. To what volume would the original sample have had to be compressed to exert a pressure of 10.0atm

I am trying to find out what v1 is
p1= 0.75
p2=10.0 atm
v2=150.0mL
v1=? ​

Answers

Answer:

Say Sofa and king ten times in a row fast

Explanation:

write the formula of the first 5 members in the series of alkynes​

Answers

Ethene (C2H4)
Propene (C3H6)
Butene (C4H8)
Pentene (C5H10)
Hexene (C6H12)

What Group is this element in?
Please answer (^∇^)

Answers

Group 2 because the outer electrons ( also known as valence electrons) are 2 and that’s how we know which group it is in

Explain how fossil fuels are formed from living organisms on land and in the sea.

Answers

Answer:

Depending on the ambient conditions, oil or natural gas develops. Today’s sources of fossil fuels are between 15 and 600 million years old. During this period the continental plates shifted, transforming oceans into landmasses, with the result that mineral deposits can be found both on land and at sea.

Explanation:

What will increase the turgor pressure in a plant

Answers

Answer:

Cell expansion and an increase in turgor pressure is due to inward diffusion of water into the cell, and turgor pressure increases due to the increasing volume of vacuolar sap. A growing root cell's turgor pressure can be up to 0.6 MPa, which is over three times that of a car tire.

Explanation...read that and you will have a sucess

Isra is analyzing the properties of several samples of elements to find out which sample is a metalloid. Which set of properties most likely belongs only to a metalloid?

Answers

Answer:

Low luster, can conduct electricity

has a high luster and is very brittle

i need help with the je that asks which parent actually determines the sex the child

Answers

the sperm from the male will determine the gender of their offspring

Answer:

Actually it is father who actually determine the sex of child

Explanation:

Because father has X & Y chromosome but mother has only XX chromosome. So it depends on which chromosome of father. If father's gamete has only x chromosome then the child will be female. And if the father's gamete has Y chromosome then the child will be male.

please mark me brainliest and 5 star

Do Elements retain their properties when they form a compound?

Answers

Answer: No

Explanation:

The components of a compound do not retain their individual properties.

Temperature definition

Answers

Answer:

degree of hotness or coldness measured on a definite scale.  the degree of heat that is natural to the body of a living being. abnormally high body heat running a temperature.

Explanation:

Answer:

degree of hotness or coldness measured on a definite scale.

Explanation:

how can i identify an element by the number of protons?

Answers

The number of proton is the atomic number of an element. Every element has a unique atomic number.

Answer:

the number of proton is equal

Please help ..
What is the molarity of a 0.30-liter solution containing 0.50 moles of H2SO4?
A 1.7M
B 0.6M
C 0.8M
D 0.15M

Answers

Answer:

1.7M

Explanation:

Given parameters:

Volume of solution = 0.3L

Number of moles  = 0.5moles

Unknown:

Molarity  = ?

Solution:

The molarity of a substance is the number of moles of solute that can be found in the volume of a solution.

  Molarity  = [tex]\frac{number of moles }{volume}[/tex]  

      Insert the parameters and solve;

 Molarity  = [tex]\frac{0.5}{0.3}[/tex]  = 1.7M

Calculate the mass of olive oil in a 750mL bottle if the density of olive oil is 0.92 g/mL. *Use the GRASP method.

Answers

The mass of olive oil : 690 g

Further explanation  

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

Density formula:  

[tex]\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}[/tex]

ρ = density  

m = mass  

v = volume  

Given

volume of olive oil = V=750 ml

density of olive oil = ρ = 0.92 g/ml

Required

the mass of olive oil

Analysis

the formula :

[tex]\tt m=\rho\times V[/tex]

Solution

[tex]\tt m=0.92\times 750\\\\m=690~g[/tex]

Paraphrase

the mass of olive oil : 690 g

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