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Chemistry Test
Test Description: Chemistry test review
Instructions: Answer all questions to get your test result.
1) which of the following is an example of a chemical change
A
ice melting
B
breaking glass
C
paper burning
D
water boiling
2) an element that has properties of both metals and nonmetals is
A
solid
B
gas
C
liquid
D
metalloid
3) a property of matter that can be observed without changing the identity of the matter is
A
flammability
B
toxicity
C
solubility
D
reactivity
4) which of the following is not a state of matter
A
solid
B
liquid
C
plasma
D
gas
5) which elements do not chemically combine with other elements
A
alkali metal
B
noble gases
C
transition metal
D
halogens
6) when two elements combine in a chemical reaction the mass of the new substance:
A
is calculated by dividing the mass of the reactants
B
is calculated by multiplying the mass of the reactants
C
is calculated by adding the mass of the reactants
D
is calculated by subtracting the mass of the reactants
7) the law of conservation of mass states that
A
the total mass of the reactants is less than the total mass of the products
B
the mass of the reactants and products can not be accurately measured
C
the total mass of the reactants is the same as the total mass of the products
D
matter is destroyed in a chemical reaction
8) Sodium is classified as a
A
metalloid
B
metal
C
nonmetal
D
actinide
9) Sodium has how many protons
A
11
B
22
C
5
D
23
10) What is the ratio of oxygen molecules in water as opposed to hydrogen peroxide
A
2 to 3
B
3 to 5
C
4 to 7
D
1 to 2
*select an answer for all questions
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