Question

Which of the following changes would slow down the rate of a reaction between vinegar and sodium hydroxide?

Heating up the vinegar
Reducing the amount of vinegar
Grinding up the sodium hydroxide
Decreasing the volume of the container

Answer 1

@taramgrant0543664 is it b?

Answer 2

I'm doing the same exam! It's B.

Answer 3

@silca Which of the following statements correctly describes the melting process?

It is exothermic because heat is gained from the surroundings.
It is endothermic because heat is lost to the surroundings.
It is exothermic because heat is lost to the surroundings.
It is endothermic because heat is gained from the surroundings.

Answer 4

Yes vinegar or acetic acid removing some will want the reaction to proceed left instead of right causing the reaction to slow
C2H4O2 +NaOH
Heating the vinegar up will make the reaction proceed faster, grinding up NaOH increases surface area allowing the reaction to move faster as well and the volume of the container doesn't make sense unless they specify what they did

Answer 5

@taramgrant0543664 Which of the following statements correctly describes the melting process?

It is exothermic because heat is gained from the surroundings.
It is endothermic because heat is lost to the surroundings.
It is exothermic because heat is lost to the surroundings.
It is endothermic because heat is gained from the surroundings.

Answer 6

is it a?

Answer 7

What's the definition of an exothermic reaction?

Answer 8

Exothermic - gives off heat
so it can't be A

Answer 9

a reaction that release energy thru light

Answer 10

so d is correct?

Answer 11

I'm sorry someone said that this is an exam technically we aren't suppose to do anything if it's a test and if it's for an exam that's even worse...

Answer 12

yea but this is not on a an exam

Answer 13

ifinshed the exam but @silca is the answer b

Answer 14

If you're not doing the test, it's D

Answer 15

You just said "it's not an exam" and then said "I finished the exam" ???

Answer 16

yea idid finsh the exam

Answer 17

Which statement best describes how a catalyst affects the reaction rate of a chemical reaction?

The addition of a catalyst decreases equilibrium and slows down the reaction.
The addition of a catalyst increases the temperature of the reactants and speeds up the reaction.
The addition of a catalyst decreases the required activation energy and speeds up the reaction.
The addition of a catalyst increases the potential energy of the reactants and slows the reaction.

Answer 18

But you said it wasn't an exam

Answer 19

@silca is it a or d?

Answer 20

@taramgrant0543664 oh typo

Answer 21

Sure...

Answer 22

@silca

Answer 23

is it a or d?

Answer 24

D