7.6 Matter and Chemical Changes Quiz
7th Grade
•17 Qs
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7.6 Matter and Chemical Changes Quiz
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Vernon B Washington
Used 11+ times
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17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compare and contrast elements and compounds. Which of the following statements is true?
Elements are made of molecules, while compounds are made of atoms.
Elements are made of atoms, while compounds are made of molecules.
Both elements and compounds are made of molecules.
Both elements and compounds are made of atoms.
Tags
TEKS.SCI.7.6A
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a chemical formula for a compound?
O
H2O
N
He
Tags
TEKS.SCI.7.6A
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the periodic table, identify the number of hydrogen atoms in the chemical formula C6H12O6.
6
12
18
24
Tags
TEKS.SCI.7.6B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a physical change?
Burning wood
Rusting iron
Melting ice
Baking a cake
Tags
TEKS.SCI.7.6C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the solute concentration when more solute is added to a solution without changing the solvent amount?
The concentration decreases.
The concentration remains the same.
The concentration increases.
The concentration becomes zero.
Tags
TEKS.SCI.7.6D
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor does NOT affect the rate of dissolution of a solid solute in an aqueous solution?
Temperature
Surface area
Agitation
Color of the solute
Tags
TEKS.SCI.7.6E
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain how increasing the surface area of a solute affects its rate of dissolution in a solvent.
It decreases the rate of dissolution.
It has no effect on the rate of dissolution.
It increases the rate of dissolution.
It changes the solute into a different substance.
Tags
TEKS.SCI.7.6E
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