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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
subscript
B
mixture
C
nucleus
D
compound
2) Which example is a compound?
A
He
B
Co
C
Si
D
CO
3) The materials before a chemical reaction are called
A
products.
B
yields.
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 compounds
B
chemical equations
C
chemical formulas
D
chemical symbols
6) How many elements are in NaHCO3?
A
8
B
3
C
6
D
4
7) What shows the number of molecules?
A
subscript
B
product
C
reactants
D
coefficient
8) How many atoms of carbon are in are in C12H22O11?
A
12
B
22
C
3
D
11
9) A subscript shows the number of
A
molecules
B
compounds
C
elements
D
atoms
10) Which is NOT a chemical formula?
A
Na
B
HE
C
Al
D
Ca
*select an answer for all questions
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