Question

A chemist mixes two liquids together. The reaction produces a gas and a solid. According to the law of conservation of mass, what should the chemist observe when she compares the total masses of the substances before and after the reaction?  (1 point)

A.The masses are equal.

B.The masses are inconsistent.

C.The mass of the substances before the reaction is greater than the mass of the substances after the reaction.

D.The mass of the substances before the reaction is less than the mass of the substances after the reaction.


I think it's D.

Answer 1

I disagree. Think about it.
A(l) + B(l) --> gas
Say A has a mass of 2 g and B has a mass of 2 grams (and they are liquids), what does the gas weigh? And how did you weigh it?

Answer 2

which of the following could not have happened as a pot of water boiled on the stove

Answer 3

particle vibration decreased cannot happen.

Answer 4

which is the answer for the mass question? wouldn't it be C?

Answer 5

is it really D

Answer 6

What is the answer?

Answer 7

It is A

Answer 8

It is A!!!

Answer 9

It's A! :)

Answer 10

its is A

Answer 11

answers are
A
A
D
D
B
C
B
A
B
B
C
D
B,C,E
A
C

Answer 12

If a=b+6= 859 then 859+1x89/B(B=60)Then it would equal About a radius from 5000-8000. So that was only the A answer explained, here's B: So AB+C (And by using the corresponding numbers for the letters in the alphabet it would be 3+3) =3/5=0+1-2=-1+5=4. (And being that a problem like this that can only be explained into an equation makes it longer. That was it, now C: So ABC=6x5=1/1=1 Makes the ABC into F1 (Combining the actual number answer to the corresponding letters), so it will be more simplified than a real equation, so this is more likely the answer. Last but not least there is D left: SO we start out with the D number and write it out in equation like: 5x10=50(x4)=120 + the corresponding number of G making it be 120/G. Figure this out and you get the number and subtract it by the corresponding number of Y 58 times and you have the answer.

Answer 13

Anonymous is right got 17/17 100 thnx you

Answer 14

Cuteypie is you in OCA????

Answer 15

anonymous is right 100%

Answer 16

Thank you Anonymous! 100% :)

Answer 17

THANK YOU ALL YALL ARE THE BEST PEOPLE OF THE WHOLE WORLD
LOVE ZACK

Answer 18

it looks like anonumus says B so here we go!

Answer 19

2020 yall

Answer 20

THANK YOU! My kid is in 6th grade at TXCA and I was at a loss on how to check his work!

Answer 21

Thank you so much this helped me a lot people 👍