Lead Review

What 2 types of mixtures are there?

• Homogenous and Heterogenous

• Atoms and Matter

• Solid and Liquid

• Proton and Neutrons

Which one is a chemical change?

• Condensation

• Ice melting

• Ripping paper

• Fire/something on fire

Which one is a physical property

• Combustion

• Color

• flammability

• change in color

which one is a chemical property?

• Change in color

• Density

• Boiling point

• shape

Which one is an extensive property

• Density

• melting point

• mass

• boiling point

What is density

• 6.022*10^23

• Mass/Volume

• Volume/Mass

• E=mc^2

What units do we use for mass?

• Grams

• Kilograms

• Pounds

• Tonnes

What units should we use for Volume

• Liters

• Millileters

• Ounces

• cm^3

What is speed?

• Distance/Time

• PiR^2

• None

• Both?

what units are femto grams

• *10^-12

• *10^-15

• *10^15

• *10^-9