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MATTER #2
RETAKE
Question | Answer |
---|---|
Is Air matter? Why or why not? | Yes, beacuse air is made up of atoms. |
Which of the following describes the motion of molecules in a gas of liquid water? | The molecules are all always moving. |
In which state of matter are the molecules spaced farthest apart? | A gas |
In which state of matter is the connection between the molecules the strongest? | A solid |
What does the Kinetic Theory describe? | The motion of particles in matter |
What causes molecules and atoms in matter to move around more? | Heating the matter |
What phase of matter has definite shape and definite volume? | Solid |
What state of matter has a definite volume, but no definite shape? | Liquid |
What is ionized gas with equal amounts of positively charged nuclei of atoms and negatively charged electrons? | Plasma |
What best describes melting? | When heat is added to a solid to make a liquid |
What is it called when a solid changes to a gas? | Sublimation |
What is an example of plasma? | Northern Lights |
When particles in a solid or a liquid move faster what happens? | They move slightly further apart which is called expansion |
What is the smallest type of particle that can not be broken down into any other substance. | Element |
Damitri Mendeleev invented a syatem to organize the known elements which is called what? | Periodic Table |
What is it called when two or more elements combine chemically | Compound |
A formula can be written to describe the components of a | Compound |
What is a combination of many different elements not chemically combined? | Mixture |
Anything that takes up space and has mass is defined as what? | Matter |
What is the smallest particle in a compound that is made up of two or more elements? | Molecule |
Salsa | Heterogeneous Mixture |
Milk | Homogeneous Mixture |
NaCl | Compound |
O | Element |
Ag | Element |
CuO | Compound |
If liquid water were boiled into water vapor, what would best describe the change? | physical change |
If you ground up a large block of salt into smaller pieces of salt, what would best describe the change? | physical change |
If you bake cookie dough into cookies, what would best describe the change? | chemical change |
If two clear colorless liquids are poured together and they begin to bubble and smoke, what would best describe the change? | chemical change |
The color, shape, density, melting point, and boiling point of a substance would be described as | Physical properties |
Change in smell | chemical change |
Melting | physical change |
Dissolving | physical change |
Produces heat | chemical change |
Boiling | physical change |
Cutting | physical change |
Liquid turns cloudy | chemical change |
Produces bubbles | chemical change |
Breaking | physical change |