Measurement/Metrics
Matter
Atoms
Periodic Table
Chemical Reactions
100
What is the unit for measuring a solid (mass)?`
Grams
100
Name the three phases of matter:
solid, liquid, gas
100
What is the charge of the proton, neutron, and electron?
Proton - positive
Electron - negative
Neutron - no charge
100
What is the periodic table arranged by?
Groups: horizontal
Period: vertical
100
Which process is a chemical change?
a. ice turning to water
b. water turning to ice
c. solid carbon dioxide turning to carbon dioxide gas
d. magnesium burning to form magnesium oxide
D.
200
What is matter?
Anything that has a mass and takes up space
Matter is everything
200
Using the Figure to the right, which of the following statements is False?
X and Z are the same volume
X and Y are the same density
Z and Y are the same density
X and Z have different densities
X and Z have different densities
200
A neutral atom contains 12 neutrons and 11 electrons. The number of protons in this atom is what?
11 protons
200
What period is Fe in?
Period 4
200
Absorbing energy in a chemical reaction is described as ______.
Endothermic
Displacement
Synthesis
Exothermic
Endothermic reaction
300
How many kilometers are 550m?
0.55 kilometers
300
What type of mixture has the same composition throughout the entire mixture?
Homogeneous mixture
300
What happens when an atom gains or loses a neutron?
It becomes an isotope.
300
What group is Ca in?
Group 2
300
In an experiment, 12.0 grams of solid carbon reacted with 32.0g oxygen gas to form carbon dioxide gas. How many grams of carbon dioxide are produced?
C + O2 → CO2
44 grams
400
Imagine that 5 grams of sugar and 45 grams of water are placed inside a flask and sealed. After shaking, the mass of sugar water will read what?
50.0 g
400
What changes to a system will result in a decrease in pressure?
raising the temperature
400
An atom has an atomic number of 7 and a mass number of 17. How many neutrons are there?
10 neutrons
400
The diagram represents an atom. What do the letters on the diagram represent? Label the electrons, nucleus, and empty space.
400
According to the law of conservation of matter, equations must be balanced because…
The number of MOLECULES must be the same before and after a reaction.
The number of ATOMS must be the same before and after a reaction.
The total of the COEFFICIENTS in the balanced equation must be the same before and after a reaction.
The Statement is INCORRECT: The law of conservation of matter doesn’t apply to chemical reactions.
The number of ATOMS must be the same before and after a reaction.
500
How many milligrams are in 30g?
30,000 grams
500
What would the gas particles look like inside the balloon after it was placed in the sun for two hours?
Far apart
500
How does a Mg atom become a Mg2+ ion?
Gains 2 protons
500
If an atom has 43 electrons, 56 neutrons and 43 protons, what is the identity of this element? Possibly remove distractors
Technetium - Tc
500
When this equation is balanced, what is the missing coefficient for carbon dioxide (CO2)?
__CH4 + __O2 → __CO2 + __H2O
Solve on the board.