Unit 1
Unit 2
Unit 3
Unit 4
Mixed
100
Therefore, .... is a good way to start which section of a CER?
reasoning
100
Boiling point is a PP, PC, CC, or CP?
PP
100
How many oxygen atoms are indicated in this formula?
Al2(CO3)3
9
100
Where are the protons, neutrons, and electrons. Also, what are their charges?
P(pos) and N(neutral) in the nucleus
E(neg) on the outside
100
Can all lab chemicals go down the drain?
no
200
The best tool for measuring liquids...
graduated cylinder
200
What state of matter has the lowest kinetic energy?
solid
200
When converting between moles and particles you need to use: Avogadro's number, molar mass, mole ratio, or 22.4 ?
Avogadro's number
200
changing this will change the element of the atom
protons
200
where do you put the dependent variable on a graph?
y axis
300
In experimental design, this is the items/people left under normal conditions.
control group
300
What is the melting point?
-60
300
Molar mass of Ca(OH)2
74.09 g/mol
300
What are TWO differences between nitrogen-14 and nitrogen-15
mass number and number of neutrons
300
how many electrons in 41Ca2+
18
400
the _______ variable causes the ________ variable to change.
independent, dependent
400
Element, compound, or mixture?
compound
400
How many moles are in 3.33 g of lithium?
0.48 moles
400
Give the whole isotope notation
p=9
n=10
e=10
19F-1
400
How many moles of in 27.8 L of neon gas?
1.24 moles
500
4700 m is _____ 4.7 km
greater than, less than, equal to
equal to
500
Evaporating is a PP, PC, CC, or CP?
PC
500
2Na + CuCl2 --> Cu + 2NaCl
How many moles of Cu are produced by 5.5 grams of Na?
0.12 moles of Cu
500
Li and Li+ have different numbers of...
electrons
500
Calculate the avg atomic mass
Isotope A 44.6 amu 92%
Isotope B 45.5 amu 8%
44.672 amu