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storchak [24]
3 years ago
6

I need to know number 2 3 4 and 5

Chemistry
1 answer:
dexar [7]3 years ago
7 0

Answer 2: 57.21235000000001

Answer 3: 44.01g

Answer 4: 24.645320000000005

Answer 5: 107.04578240000001

Good luck

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2 X(9) + Y (9) = 2XY (9)
11Alexandr11 [23.1K]

Answer:

The answer is D. The rate of the forward reaction is greater than the rate of the reverse reaction.

Explanation:

The forward reaction rate was greater than the reverse reaction rate because more product is present at time 2. This is the answer from ap classroom.

8 0
3 years ago
In water solution, the conjugate base of HF is __________
anastassius [24]

Answer:

The correct answer is : F^-

Explanation:

According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.

Acid after donating protons changes into conjugate base and base after accepting protons changes into conjugate acid.

So, when HF in water reacts, it form fluoride ions and hydronium ions. The recation is given as:

HF+H_2O\rightarrow F^-+H_3O^+

Here, HF is acting as a  Bronsted Lowry acid by donating proton and forms it conjugate base F^-, Where as water is acting as a  Bronsted Lowry base by accepting a proton and forms its conjugate acid H_3O^+.

5 0
3 years ago
I need help if anyone will help plz
maksim [4K]

Answer:

D

Explanation:

If you look at the problem, and the coefficients (the little numbers on the bottom) you will see that on the reactant side you get a total of 11, you look over to the product side and you also get a total of 11.

B. is wrong because they’re are the same amounts

C.is wrong because they have the same amount of carbon

D. Now similar to B but slightly different the matter is the reactant side I’m pretty sure is equal to the amount on the product side.

If I had to take a strong guess though I would choose D just because the question is asking for the one that shows The law of conservation of mass. Pls make me brainlist

7 0
3 years ago
The step that usually comes last in solving numeric problems is to
Novosadov [1.4K]

that answer is incorrect.... the answer is evaluate. The 3 steps are, analyze, calculate, evaluate.

4 0
3 years ago
As a race car races around the track, friction between the tire and the road heats the air in the tires and the pressure inside
kipiarov [429]
I believe the correct answer from the choices listed above is option B. The best explanation for this happening would be that air <span>particles speed up and collide with the tire walls more often. As the particles are heated, kinetic energy increases. Hope this answers the question. Have a nice day.</span>
8 0
4 years ago
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