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Chemical Formulas And Chemical Equations
Test Description: Easy
Instructions: Answer all questions to get your test result.
1) Atom is to element as molecule is to
A
compound
B
nucleus
C
mixture
D
subscript
2) Which example is a compound?
A
He
B
CO
C
Co
D
Si
3) The materials before a chemical reaction are called
A
yields.
B
products.
C
reactants.
D
atoms.
4) Materials present BEFORE a chemical reaction
A
product
B
chemicals
C
yields
D
reactants
5) Chemical reactions are represented by
A
chemical equations
B
chemical formulas
C
chemical compounds
D
chemical symbols
6) How many elements are in NaHCO3?
A
4
B
3
C
6
D
8
7) What shows the number of molecules?
A
coefficient
B
reactants
C
product
D
subscript
8) How many atoms of carbon are in are in C12H22O11?
A
22
B
12
C
11
D
3
9) A subscript shows the number of
A
elements
B
compounds
C
atoms
D
molecules
10) Which is NOT a chemical formula?
A
HE
B
Na
C
Al
D
Ca
*select an answer for all questions
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