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Chapter 1
Chapter 2
Chapter 3
100
Which of the following is NOT a homogenous mixture? A. The air inside a balloon B. Coca-Cola C. Pond water D. A solution of potassium chloride in pure water
D. Pond water
100
What accomplishment is John Dalton credited with?
Atomic Theory
100
Balance the following equation: Al + HBr ---> AlBr3 + H2
2Al + 6HBr ---> 2AlBr3 + 3H2
200
An experiment calls for 33.0 mL of cyclohexane, a substance whose density is .778 g/mL. What mass of cyclohexane should be used?
Density=Mass/Volume (.778 g/mL)(33.0 mL)= 25.7 mL
200
Of the following which is NOT an ionic compound? A. MoF6 B. MgF2 C. AlF3 D. PF3 E. NaF
PF3
200
What is the mass percent of hydrogen in phenol (C6H80)?
8.43%
300
151 nm is how many meters?
1.51 x 10^-7 m
300
What is acetate?
C2H3O2
300
What type of reaction is: Na2SO4 ---> 2Na(+) + SO4(-)
Decomposition Reaction
400
What are the number of sig figs in 0.006705 g?
4
400
Name HClO3
Chloric Acid
400
Between studying chemistry and your social life, you have awaken with a headache that is so bad you go see the doctor at the UNR Health Center. The doctor is a chemistry nerd and prescribes you something that is 60.00% Carbon, 4.49% Hydrogen, and the rest oxygen by weight. He tells you the empirical and molecular formula are the same. What is the prescription for?
C9H8O4
500
An isotope of an element has the same number of ____ but a different number of _____.
protons, neutrons.
500
What is Aluminum Bromide?
AlBr3
500
What mass of carbon dioxide can be produced by combustion of .360 g of ethane (C2H6)?
2C2H6 + 7O2 ---> 4CO2 + 6H2O 1.05 g CO2