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Common Assessment Review Game
Test Description: If you can successfully answer the following questions you should do well on the common assessment.
Instructions: Answer all questions to get your test result.
1) Which of the following is not evidence of a chemical change?
A
formation of a precipitate
B
formation of a gas
C
unexpected color change
D
melting point of a element
2) To produce salt, sodium (Na) and chlorine (Cl) are chemically combine to form NaCl. Which of the following best describes Na and Cl?
A
Homogeneous Mixture
B
Element
C
Compound
D
Heterogeneous Mixture
3) What elements are present in the compound methane (NH4)?
A
Nitrogen and Oxygen
B
Nitrohydro
C
Nitrogen and Carbon
D
Nitrogen and Hydrogen
4) How many atoms make up the compound sodium acetate (C2H3NaO2)?
A
6
B
8
C
7
D
9
5) What law state that the mass of the reactants must equal the mass of the products?
A
Newton's First Law
B
Law of Conservation of Mass
C
Law of Inertia
D
Law of Equal Masses
6) Which equation below correctly shows the law of conservation of mass?
A
C2H6O + O2 ----- CO2 + H2O
B
3H2SO4 + Fe --- Fe2(SO4)3 + H2
C
C3H8 + 5O2 --- 4H2O + 3CO2
7) Which of the following properties is not a physical property?
A
density
B
odor
C
color
D
flammbility
8) A substance has several different atoms of several different elements that can be easily separated. What is being described?
A
Mixture
B
Element
C
Compound
D
Patela
9) Which of the following is not an example of a chemical change?
A
Burning a candle
B
Chewing food
C
Photosynthesis
D
Stomach digesting food
10) During a chemical reaction, heat is given off. What type of reaction occurs?
A
Endothermic
B
Exothermic
11) H20 is an example of a _________.
A
chemical symbol
B
chemical formula
C
chemical element
D
chemical reaction
*select an answer for all questions
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