Counting Atoms Question Preview (ID: 54797)
Law Of Conservation Of Matter.
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What is the name of the arrow in a chemical equation?
a) arrow
b) yield
c) product
d) reactant
H2+ O2 ---- 2H2O Which is the product?
a) 2H2O
b) H2+ O2
c) ---
d) O6
H2+ O2 ---- 2H2O Which is the reactant?
a) 2H2O
b) -----
c) H2+ O2
d) H2
How many atoms of oxygen are needed to make water?
a) 1
b) 2
c) 3
d) 4
How may atoms of Hydrogen are present in 2C6H12O6?
a) 24
b) 12
c) 16
d) 88
How may molecules of water are present in 7H2O
a) 14
b) 8
c) 7
d) 1
How many atoms of Oxygen are present in 2H2O
a) 4
b) 6
c) 2
d) 1
Which compound makes oxygen gas?
a) N2
b) CO2
c) H2O
d) O2
Which compound makes rust?
a) C6H12O6
b) Fe2O3
c) NaCl
d) CO2
How many atoms of Sodium are present in 2NaCl?
a) 2
b) 4
c) 1
d) 6
2NaCl makes what compound?
a) Iron
b) Rust
c) Table Salt
d) Glucose
What compound does C6H12O6 make?
a) Rust
b) Glucose
c) Water
d) Lead
How many atoms of Carbon are present? C6H12O6
a) 6
b) 12
c) 24
d) 2
The reactant is always on the ____ side of a chemical equation.
a) left
b) right
c) middle
d) none of the above
The product is always on the ____ side of a chemical equation.
a) left
b) right
c) yield
d) none of the above
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