Balanced equations Flashcards
1
Q
Tin oxide is heated with hydrogen gas to form tin metal and water vapor. Write the balanced equation that describes this reaction.
Write the unbalanced equation.
A
SnO2+H2= Sn + H2O
2
Q
Starting materials
A
Reactants
3
Q
No big number infront=
A
1
4
Q
Right hand side of arrow
A
product
5
Q
What have to do
A
Same number of atoms on both sides of the arrow
6
Q
Na+Cl2
A
2Na+Cl2
7
Q
Na2CO3
A
3Na2CO3
8
Q
Small numbers
A
Never change
9
Q
Ca+Cl2
A
Already balanced
10
Q
Na+I2= NaI
A
2Na+I2=2NaI
11
Q
CaO+ HCl=CaCl2+H2O
A
CaO+2HCl=CaCl2+H2O
