Chemistry
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?
Incompressible, no fluidity, fixed shape and volume
What are the characteristics of a liquid?
Incompressible, has fluidity, no fixed shape, fixed volume
What are the characteristics of a gas?
Compressible, has fluidity, no fixed shape or volume
What is matter?
Anything that has mass and takes up space
What is energy?
Needed for matter to move
Liquid to solid
Freezing
Solid to liquid
Melting
Liquid to gas
Evaporating
Solid to gas
Sublimation/Subliming
Gas to liquid
Condensation
Gas to solid
Deposition
What is the formula for density?
Density = mass/volume
What is density?
Density is the amount of mass in a given volume
How is density measured?
g/cm³
Density of water?
1 g/mL (or 1 g/cm³)
When would an item sink?
When the item’s density is higher than the liquid
When would an item float?
When the item’s density is lower than the liquid
What is all material made up of?
Matter
What is an impure substance?
A substance made up of more than one element or compound. Mixture, solution, and colloid
What is a pure substance?
A substance that is chemically bonded, has set properties, is predictable, and cannot be separated physically. Compounds and Elements - Metals and non metals
What is an atom?
The building block of matter, cannot be seen with naked eye, only with a transmission electron microscope
What is an element?
A pure substance made of only 1 type of atom. Can be Metals and Non-Metals
What are the 3 atom arrangements?
Monatomic, Molecules, and Lattices
What is the Monatomic atom arrangement?
singular atoms