Question

2. The law of conservation of mass tells us that mass is neither created or destroyed but must be _____________________ in a chemical reaction.
3. When balancing a chemical reaction we can / cannot change the chemical formulas in the reaction.
4. If 12 molecules of methane, CH4 reacted with plenty of oxygen, we should expect to produce _______________ molecules of carbon dioxide, CO2 and _______________ molecules of water, H2O.
5. To produce 8 molecules of ammonia, NH3, we would need _______________ molecules of hydrogen, H2 and _______________ molecules of nitrogen, N2.

Answer 1

@DERRICKCURRY

Answer 2

ok does it have anser choices or we have to find the words out or selves

Answer 3

the last on is h20

Answer 4

there's no answer choices . that's why I don't understand it

Answer 5

the last one . in 1? or 5?

Answer 6

where ther any words in the lesson or word bank or periodic table

Answer 7

nvm

Answer 8

i wasd wrong about h20

Answer 9

it's fine

Answer 10

I have 2 and 3 . I think I know the rest im not sure . i'll message you if I need any help . thank you

Answer 11

got the answers hang on