Unit 7: Chemical Reactions
Quiz
•
Chemistry
•
10th Grade
•
Hard
Humberto Castro
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What kind of change occurs when paper is shredded into small pieces?
Chemical Change
Phase Change
Physical Change
Atomic Change
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is a chemical change?
Dissolving sugar in water
Melting ice
Tearing a paper
Baking a cake
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which formula needs a roman numeral in its name?
AlF₃
CaCO₃
Sn(NO₂)₂
NaCl
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is always true in a balanced chemical equation?
There are more products than reactants
The mass of products is less than the mass of reactants
The number of atoms for each element is equal on both sides
The number of molecules is always the same
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following equations is correctly balanced?
H₂ + O₂ → H₂O
2H₂ + O₂ → 2H₂O
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which statement is true about covalent compounds?
They use roman numerals
They require prefixes in naming
They only form with metals
They always form precipitates
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the formula for disulfur decafluoride?
S10F2
S3F9
S2F10
S2F8
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