Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Physical Science Ch 6 Test 2
Test Description: Chemical reactions
Instructions: Answer all questions to get your test result.
1) The law of conservation of matter states
A
matter cannot be created not destroyed
B
matter is in every object
C
none of the choices
D
matter changes from phase to phase
2) In a balanced chemical equation, the mass of the reactants is equal to the
A
atoms in a molecule
B
volume of the reactants
C
atomic mass of the elements
D
mass of the products
3) What coefficient is missing in C2H4 + (?) O2 = 2CO2 + 2H2O?
A
2
B
4
C
5
D
3
4) Which of the following represents the word equation magnesium + oxygen = magnesium oxide?
A
CH4 + O2 = CH4O2
B
2CH4 + O2 = 2CH3OH
C
2Mg + O2 = 2MgO
D
MgO + O = MgO2
5) Which of these equations is not balances?
A
Fe + S = FeS
B
NaCl + H2SO4 = Na2SO4 + HCl
C
2Mg + O2 = 2MgO
D
KOH + HCl = KC + H2O
6) At higher temperatures, food cooks faster because particles of food
A
collide more often
B
take up less space
C
come into contact with water
D
increase in number
7) Catalysts that slow reactions are called
A
endothermic
B
inhibitors
C
balanced
D
substrates
8) A slow reaction is likely to occur when the reactants have _________ temperatures and ________ surface areas.
A
high, small
B
high, large
C
low, small
D
low, large
9) Which is not true of enzymes
A
they are proteins
B
they are catalysts
C
they are inefficient
D
they are affected by temperature
10) All of these are likely to speed up the rate of a reaction except
A
increasing the temperature
B
increasing the pressure
C
adding a catalyst
D
decreasing the surface area
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?