Matter and properties
No fixed volume and no fixed shape.
What is a gas?
Space occupied by an object.
What is volume?
Ms. B will take off points if you do not label your units on your quizzes. True or false.
What is TRUE!!
You better label!
All matter is made up of _____.
What are atoms?
Atoms are held tightly together.
What is a solid?
Gravity acting on mass.
What is weight?
Meters, liters, grams are types of _____ units.
What are base units?
Pure substance made up of only one type of atom
What is an element?
Change in which the identity of the substance is not changed but particles are realigned.
What is a physical change?
The thing that is being measured vs how it is being measured.
What is quantity vs unit?
To convert to a smaller unit, move the decimal to the _____.
What is right?
Two or more of the same atom bonded together
What is a molecule?
Substance that participates in a reaction.
What is a reactant?
The equation for density.
What is mass divided by volume?
The mass of a sample is taken. The scale says 8.6 mg. Express this measurement in grams.
What is .0086 g?
Composed of more than one type of atom.
What is a compound?
Identity of substance changes.
What is a chemical change?
The density of sample A is .009 g/cm^3 and the denisty for sample B is .12 g/cm^3. Which has a higher density.
What is sample A?
As the prefix for the unit of measurement gets larger, the number will get smaller. True or False.
What is true?
Two or more atoms that are not chemically bonded but can be evenly mixed or separate out.
What is a mixture?