Chemical reactions Flashcards
1
Q
Finish the sentence: the materials we start with are called __ and the new materials that form are called __.
A
Reactants, products
2
Q
What is the number in front of the formulae in the chemical equation called
A
Coefficient
3
Q
Finish the sentence: the __ tell us how many atoms of a particular element are in one molecule of that compound.
A
Subscript
4
Q
Name two ways to represent chemical equations
A
- with models and pictures
- with symbols and formulae
- with words
