Show:
Types of matter
Identifying substances
Density
Chemical and physical
Phase changes
100
What is matter
Whatever has matter and takes up space
100
What is the correct symbol for the following element: Calcium
Ca
100
What is the formula for density?
D=M/V
100
Name three physical properties?
density, shape, color, luster, ect.
100
This phase has low energy and its molecules only vibrate, what is it?
solids
200
Identify the following as either a Pure Substance or a mixture: air, calcium, NaCl
Mixture, PS, PS
200
The combination of two or more atoms that results in creating something new is what?
Compound
200
Would the following sink or float in water? Syrup with a density of 2.3 g/ml
sink
200
Flammability, combustibility, and reactivity are all examples of what?
chemical properties
200
This phase doesn't have a definite shape or volume and a high amount of energy, what is it?
Gas
300
Identify the following as either a compound or an element: Hg, Salt, H, CO
Element, Com, Element, Com
300
How many TOTAL atoms are in the following compound: 6CaI
12
300
Given a mass of 200 g and a volume of 10 ml, what is the density?
20 g/ml
300
bending a piece of metal is an example of what kind of change?
physical
300
Changing from a gas to a liquid is called what?
condensation
400
Identify the following as either Homogenous, or Heterogenous: Salt water, air, bowl of Skittles.
Hom, Hom, Het
400
What is the difference between a subscript and a coefficient?
Subscripts come after a chemical symbol and tell how many atoms there are, while coefficients are in front and tell how many molecules there are.
400
Given a density of 15 g/ml and a volume of 3 ml, what is the mass?
45 g
400
Mr. Whitaker has multiple plush viruses up front. Look at the common cold one and DESCRIBE two physical and one chemical property.
Blue, sphere, and can catch fire very easily.
400
What is deposition?
Gas directly to a solid
500
What is a solute?
The substance that gets dissolved.
500
Name the first 5 elements in order.
hydrogen, helium, lithium, beryllium. boron
500
Put the densities in order: 1, 2.6, .36, 1.01
.36, 1, 1.01, 2.6
500
name three out of four ways we know a chemical change has occured
energy change, gas given off, color change, precipitate formed
500
Based on Charles's law, why is it important to check your tires when winter comes along?
As the temperature drops, so will the volume in your tires.