All categories

3 years ago

Which statement below best describes the relationship of the reaction below?

Chemistry

2 answers:

Citrus2011 [14]3 years ago

7 0

Answer:

It is C

Explanation:

A) does not make sense because we obviously see that it has 2 moles of AB (right side of equation) for every 3 moles of A (left side of equation). We do not have data to prove B) is correct. It would require data actually. We also do not have data to prove that D is true either. But, we do know based on the equation that "for every two AB produced, teh reaction requires three A."

timurjin [86]3 years ago

3 0

For every two AB produced, the reaction requires three A

You might be interested in

2NO + 2H2 ⟶N2 + 2H2O What would the rate law be if the mechanism for this reaction were: 2NO + H2 ⟶N2 + H2O2 (slow) H2O2 + H2 ⟶2

Talja [164]

Answer:

rate = [NO]²[H₂]

Explanation:

2NO + H2 ⟶N2 + H2O2 (slow)

H2O2 + H2 ⟶2H2O (fast)

From the question, we are given two equations.

In chemical kinetics; that is the study of rate reactions and changes in concentration. The rate law is obtained from the slowest reaction.

This means that our focus would be on the slow reaction. Generally the rate law is obtained from the concentrations of reactants in a reaction.

This means our rate law is;

rate = [NO]²[H₂]

6 0

3 years ago

I need help fast thx

Free_Kalibri [48]

I'm guessing you have to balance these.
I took a picture of my working out.

Answer to the first one = 2HCl+CaCO3=CaCl2+H20+CO2
So basically just add a big 2 in front of the first HCl

Answer to second one = 2Ni + O2 = 2NiO
So basically in this one just add a big 2 in front of both of the Ni

6 0

3 years ago

Which of the following best describes elements?

sukhopar [10]

Explanation:

Elements are distinct substances that cannot be split-up into simpler substances. Such substances are made up of only one kind of atom.

Elements are classified as pure substances.
They are homogeneous in all parts.
They have a definite composition.
They cannot be split or broken into simpler substances by physical means.
There are over a hundred known elements.
Elements are usually symbolized by a capital letter or capital letter followed by a smaller letter derived from the English or Latin or Greek name of the element concerned.

learn more:

Element brainly.com/question/2572495

#learnwithBrainly

6 0

4 years ago

Which of the following statements is FALSE. Select one: A. Two of the statements are false. B. In the synthesis of aspirin, the

Georgia [21]

Answer:

Aspirin was purified in the lab by recrystallizing the crude aspirin. The melting point of the purified aspirin is expected to be lower than the melting point of crude aspirin.

Explanation:

The presence of impurities in a sample lowers the melting point of the impure substance. Hence the melting point of an impure substance is always less than the melting point of the corresponding pure substance.

Bearing this in mind, the statement "Aspirin was purified in the lab by recrystallizing the crude aspirin. The melting point of the purified aspirin is expected to be lower than the melting point of crude aspirin." is found to be false since impure substances tend to have a slightly lower melting point than the pure substance, and a broader melting temperature range.

3 0

3 years ago

Amanda dropped a rock into a graduated cylinder containing water. The water level in the cylinder increased. Which property of t

gregori [183]

The correct answer would be A i think hope it helps

6 0

3 years ago