Unit 0
Unit 1
Unit 2
Mixed
100
What does CER mean?
Claim, Evidence, Reasoning
100
They have the same number of protons but different number of neutrons?
Isotopes
100
bonds between 2 nonmetals
Covalent Bonds
100
Sodium has an oxidation number of
+1
200
You want to determine the precise volume of water that a sponge will hold. Which piece of lab equipment would be most appropriate for this experiment?
Graduated Cylinder
200
If a neutral atom has 12 electrons, how many protons does it have?
12
200
What is the correct formula for the compound formed between calcium and oxygen?
CaO
200
What element is represented by the following electron configuration: 1s2 2s2 2p4
Oxygen
300
Which of the following is not a component of lab safety?
a) Wearing appropriate protective equipment
b) Eating and drinking in the lab
c) Handling chemicals with caution
d) Reporting accidents or spills immediately
B
300
Why do atoms form bonds?
In order to have full outer electron energy levels
300
What is the correct name for CaBr2?
Calcium bromide
300
What is the smallest unit of matter that retains the chemical properties of an element?
ATOM
400
What are the 3 steps of an I2 statement?
What I see, What it means, & Caption
400
Eu+5 ion with a 153 mass number has how many protons, electrons, and neutrons.
Protons Electrons Neutrons
63 58 90
400
What is the correct name for Pb(NO3)3?
Lead (III) Nitrate
400
What are the atomic number and mass number of this atom?
The atomic number is 3 and the mass number is 7.
500
What are the 7 steps of the Scientific Method?
State the problem.
Gather research.
Form a hypothesis.
Perform the experiment.
Analyze the data.
Draw conclusions and REPEAT!
Share with the scientific community.
500
Which of the following places the atomic subshells in the correct order of relative energy, starting with the subshell of lowest energy?
s,p,d
500
What is the name of the compound with the chemical formula H2O?
Dihydrogen monoxide
500
Which of the following statements describes an ion correctly?
a) An ion is a neutral particle with an equal number of protons and electrons.
b) An ion is a charged particle formed when an atom gains or loses electrons.
c) An ion is an isotope of an element with a different number of neutrons.
d) An ion is a type of atom that has a different number of protons than neutrons.
B