Unit 1 Elements and Compounds Review

Quiz
•
Science
•
6th Grade
•
Medium
Standards-aligned
Ysmael Sarmiento
Used 17+ times
FREE Resource
29 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 5 pts
Select all of the substances that are elements.
Baking Soda
NaHCO3
Copper
Cu
Magnesium
Mg
Sugar
C12H22O11
Zinc
Zn
Answer explanation
Copper, Magnesium, and Zinc are all just 1 element.
The rest are compounds because they have more than 1 element.
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which substances are compounds?
Copper, Sugar, and Water
Iron, Magnesium, and Zinc
Water, Nitrogen, Baking Soda
Baking Soda, Sugar, Water
Answer explanation
Baking Soda is a compound because it's chemical formula is NaHCO3
Water is a compound because it's chemical formula is H2O
Sugar is a compound because it's chemical formula is C12H22O11.
Each one are made of different elements.
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is the chemical formula for salt
NaCl
nacl
NACL
clan
4.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Mercury is an element, with the atomic number 80. Which of the following is true?
Mercury is a pure substance, represented by the symbol Hg
Mercury is an impure substance because it's a liquid
Mercury is an impure substance because its a planet
Mercury is a pure substance, represented by the symbol Mg
Answer explanation
Mercury is a liquid inside a thermometer. It is an element therefore it is a pure substance with the symbol Hg.
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Elements are a...
pure substance made of atoms
impure substance made of atoms
water, earth, fire, and air
pure substance made of compounds
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Which of the following is a compound?
Ag
Pb
H2
NaF
Answer explanation
NaF is the only one with 2 different elements
Na and F
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is the correct chemical formula for water
h2o
h2O
H2O
OH
Tags
NGSS.MS-PS1-1
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