Balancing Equations Flashcards
1
Q
State the law of conservation of mass, applied to atoms.
A
No atoms are lost or made in a chemical reaction.
2
Q
How many magnesium atoms must be on the right side of an equation if there are two on the left?
A
Two
3
Q
When an equation is balanced what do we know about the LHS and RHS?
A
The number of each type of atom is the same on each side.
4
Q
To balance an equation, where can we add numbers?
A
Big number in front of a molecule.
