Phase Changes
Energy is being removed, turning a gas to a solid
Deposition
What is a property
something that describes mater
A substance that changes into 1 or more NEW substance
Chemical Change
A substance that cannot be broken down further
Is NaCl a pure substance?
Yes
Going from solid to liquid to gas and back
Phase change
what is something conductive
metals
Signs that a physical change has occured
shape change, color was changed by someone, texture changes, dissolving, and phase changes
Liquids that dissolve together
Miscible
What type of mixture is chocolate milk?
Suspensions
Mass cannot be created nor destroyed
Law of conservation of mass
a diamond is a example of what
hardness
baking bread is an example of what chemical reaction?
endothermic
True or false? All molecules are compounds but not all compounds are molecules
False
Does kerosene mix with water?
This is what energy does to have a phase change
Be added or removed
what is density
the mass per unit volume of a substance
What is the starting materials in a chemical reaction? What is the substance produced by a chemical reaction?
1. Reactant
2. Product
Is alcohol an element, compound, or mixture?
compound
What type of mixture is milk?
Colloid
The ability to change matter
Energy
what is one example of malleability
gold
Which would be considered a physical change?
a. Hydrochloric acid is neutralized by a base to produce a salt and water
b. Hydrochloric acid is diluted in water
c. Acid rain causes the decomposition of a marble statue
d. Zinc metal is added to hydrochloric acid and gas is released
B. Hydrochloric acid is diluted in water
Tin, sulfur, water, diamond, pure sugar, table salt, and baking soda
What type of mixture is jello?
Colloid