chemical reactions and equations Flashcards
1
Q
what happens to atoms during chemical reaction
A
rearranged
2
Q
in chemical reactions do atoms get created or destroyed
A
none
3
Q
does the mass change in chemical reactions
A
no
4
Q
what are the reactants and products
A
chemicals you start and end up with
5
Q
what is a catalyst
A
substance that speeds up a chemical reaction without being in it, doesn’t need much energy can be carried at low temp
