All categories

4 years ago

PLEASE HELP!!!! 14 points and brainliest (pic below, select all that are correct.

Chemistry

1 answer:

Angelina_Jolie [31]4 years ago

6 0

The answers are the 3rd, 4th, and 6th options.

You might be interested in

Which process requires water to gain heat energy from the environment

elixir [45]

Answer:

Evaporation

Explanation:

Evaporation is the certain process that requires water to gain heat energy from the environment.

4 0

3 years ago

Compound A is an alkene that was treated with ozone to yield only (CH3CH2CH2)2C=O. Draw the major product that is expected when

DochEvi [55]

Answer:

2,2,3,3-tetrapropyloxirane

Explanation:

In this case, we have to know first the alkene that will react with the peroxyacid. So:

What do we know about the unknown alkene?

We know the product of the ozonolysis reaction (see figure 1). This reaction is an oxidative rupture reaction. Therefore, the double bond will be broken and we have to replace the carbons on each side of the double bond by oxygens. If $(CH_3CH_2CH_2)_2C=O$ is the only product we will have a symmetric molecule in this case 4,5-dipropyloct-4-ene.

What is the product with the peroxyacid?

This compound in the presence of alkenes will produce peroxides. Therefore we have to put a peroxide group in the carbons where the double bond was placed. So, we will have as product 2,2,3,3-tetrapropyloxirane. (see figure 2)

3 0

3 years ago

A chemist describes a particular experiment in this way: "0.0400 mol of H2O2 decomposed into 0.0400 mol of H2O and 0.0200 mol o

AleksandrR [38]

Description:

"0.0400 mol of H2O2 decomposed into 0.0400 mol of H2O and 0.0200 mol of O2."

This means that a certain amount of H2O2 (0.0400 mol) decomposed or was broken down into two components, 0.04 mol of H2O and 0.02 mol of O2. To examine the system, we need a balanced equation:

H2O2 ---> H2O + 0.5O2

The final concentrations of the system indicates that the system is in equilibrium.

4 0

3 years ago

Which of these is the part of an atom that contains the protons and neutrons? A. nucleus B. electron C. shell D. orbital

Ludmilka [50]

The answer is a, nucleus

4 0

4 years ago

Read 2 more answers

The empirical formula of a hydrocarbon (compound that contains only C and H is found to be CH. laboratory procedures have found

gulaghasi [49]

Answer:

C₆H₆

Explanation:

Molar mass of the compound is 78g/mol

Unknown:

Molecular formula of the compound = ?

Solution:

The empirical formula of the compound is CH.

Empirical formula is the simplest formula of a compound.

To solve this problem:

Find the molar mass of CH;

Molar mass = 12 + 1 = 13g/mol

Multiplication index = $\frac{78}{13}$ = 6

So;

(CH)₆ ;

Therefore:

C₆H₆

6 0

3 years ago