Chemical.....?

Question

1. the total mass of the reactants must equal
a. the net charge.
b. the total mass of the products.
c. the total mass of the catalysts.
d. the mass of the precipitate.

2. a reaction will occur only if the particles of
a. products collide.
b. reactants collide.
c. both product and reactants collide.
d. None of the above

Answer 1

1. B
2. B

I think thats what your teacher wants to hear.

I'd argue with both of the solutions though.

Reactions almost never go to 100%. So you end up with some of you're reactanst left behind.....

2. Thats one i think is tricky...cuz most reactions are reversible. So the reaction might be occuring because you're desired products......more of them are added to the system and then you're products collide to form your reactants.

Answer 2

B, B.