
Grade 7 Chemistry – March Test Review_Quizizz

Quiz
•
Chemistry
•
7th Grade
•
Hard
Bongiwe Mavundla
Used 1+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a compound (化合物)?
A single element (元素)
A substance made of two or more different elements (元素)
A mixture of elements (元素)
A gas (气体) only
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of the following is a molecule (分子)?
Oxygen (氧气) (O₂)
Iron (铁) (Fe)
Gold (黄金) (Au)
All of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the “-ide” suffix indicate in a compound name (化合物名称)?
It contains oxygen (氧)
It is a non-metal (非金属)
It is a compound (化合物) of a metal (金属) and non-metal (非金属)
It is a gas (气体)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a compound (化合物)?
Helium (氦) (He)
Water (水) (H₂O)
Carbon (碳) (C)
Silver (银) (Ag)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the fixed ratio in water (水) (H₂O)?
1 hydrogen (氢) and 2 oxygen (氧)
2 hydrogen (氢) and 1 oxygen (氧)
2 hydrogen (氢) and 2 oxygen (氧)
1 hydrogen (氢) and 1 oxygen (氧)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do compounds (化合物) have different properties than their elements (元素)?
Because they are made of the same type of atoms (原子)
Because their particles (粒子) are different
Because they are liquids (液体)
Because they are gases (气体)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you name a non-metal compound (非金属化合物)?
By using prefixes to denote the number of atoms
By using Roman numerals
By using suffixes to denote the type of bond
By using the metal's oxidation state
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