Quiz 1
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
What are the characteristics of a solid?
Definite shape and volume, difficult to compress, particles packed closely together
What are the characteristics of a liquid?
Definite volume, assumes the shape of the container, packed closely together, difficult to compress
What are the characteristics of a gas?
No definite volume, fills the volume and shape of the container, easily compressed
What is condensation?
The phase change from a gas to a liquid
What is vaporization?
The phase change from liquid to gas
What is freezing?
The phase change from liquid to solid
What is melting?
The phase change from solid to liquid
What is sublimation?
The phase change from solid to gas
What is deposition?
The phase change from gas to solid
How many atoms of sodium (Na) are in Na₂SO₄?
2
How many atoms of nitrogen (N) are in Mg(NO₃)₂?
2
How many atoms of oxygen (O) are present in 3CaBr₂?
6
In the compound 2Ba(NO₃)₂, how many total oxygen atoms are there?
12
What is the total number of carbon atoms in C₁₂H₂₂O₁₁?
12
How many chlorine (Cl) atoms are in NaCl?
1
Fill in the blank: The three common states of matter are _______.
solid, liquid, gas
Rule #1
Between, yes Ex. 50.3, 3.0025
Rule #2
In front of number, No Ex. 0.892, 0.0008
Rule #3
End on number and right of decimal, Yes Ex. 57.00, 2.00000
Rule #4
End of number and left of decimal, no Ex. 1000, 20 Unless 1000.
How many significant figures does 1234 have
4
How many significant figures does 0.025
2
How many significant figures does 890
2