The chemical formula for water is HIJKLMNO, often shortened as H to O.
Name all the diatomic elements and formulas
Bromine, iodine, nitrogen, chlorine, hydrogen, oxygen, and fluorine.
Br2, I2, N2, Cl2, H2, O2, F2
Magnesium reacts with fluorine. Predict the products (name AND formula)
How many sig figs are in • 0050000
How many sig figs are in• .0050000
3 and 5
The reactant that determines the amounts of the other reactants that can combine--and the amount of product that can form--in a chemical reaction.
Limiting reactant
pressure varies directly with temperature (constant volume). Name the gas law.
Gay-lussacs law
List valence electrons and ion charges of the A elements
V.E. - 1, 2, 3, 4, 5, 6, 7, 8
Ion charges - 1+,2+, 3+, 4-/+, 3-, 2-, 1-, 0
Name the 5 reaction types.
Synthesis, decomposition, SR, DR, combustion
Convert 5.600 cm to km. Report your answer using sig figs
5.600 cm 1 m 1 km
100 cm. 1000m
= 5.600 x 10-5 km
Mg + 2HCl --> MgCl2 + H2
What mass of hydrogen is produced from the reaction of 75 g HCl
2.0 g H2
A sample of oxygen gas collected in the lab occupies a volume of 250. mL when its pressure is 720. mmHg. What volume will the gas occupy at a pressure of 760. mmHg if the temperature is held constant?
237 mL
What is the molar mass of nitric acid
HNO3 = 63.0119 g/mol
List at least 2 things wrong with the following equation? Hydrochloric acid reacts with sodium phosphate:
6 HCl+ 2 (PO4)Na3 —> 2 H3PO4 + 6 NaCl
3 HCl+ Na3PO4 —> H3PO4 + 3 NaCl
How many sig figs are in the following:
50 cm, 00510 kg, 5. dogs
1, 4, infinite sig figs (sig figs are not used for counting numbers, ONLY measured numbers)
This law states that mass is neither created nor destroyed during ordinary chemical or physical reactions.
The law of conservation of mass.
A sample of neon gas occupies a volume of 742 mL at 35˚C. What volume will the gas occupy at 60˚C if the pressure is held constant?
What is 802 mL
What is the molar mass of decanol?
C10H21OH = 158.2828 g/mol
Nonanol reacts with limited oxygen. What is the balanced equation?
C9H19OH + 9 O2 —> 9 CO + 10 H2O
How many milliquarts are in 4.80 centigallons. Report answer in sci not with sig figs.
1.92 x 10^2 mquarts
Tin (IV) oxide reacts with gold. Predict the products and balance the equation. Then write all mole ratios.
NR. Gold is not more reactive than tin ;)
A 8.3 L gas sample at standard pressure is compressed to a volume of 2.8 L and the temperature is increased from 30˚C to 65˚C. What is the new pressure of the gas in atms?
What is 3.3 atm
What is the molar mass of the product that forms from lead (IV) and sulfur?
PbS2 = 271.32 g/mol
Aluminum phosphate reacts with ammonium carbonate. Predict the products and balance.
2 AlPO4 + 3 (NH4)2CO3 —> Al2(CO3)3 + 2 (NH4)3PO4
How many cm3 are in 6 moles O2
Mol O2 —> volume O2 (liters) —> mL O2 —> cm3
6 mol O2 22.4 L O2 1000 mL O2
1 mol O2 1 L O2
1 mL = 1 cm3
1.34400 x 10^5 cm3 = 1 x 10^5 cm3
Chlorine gas reacts with potassium bromide. How many grams of potassium chloride can be produced from 300. g each of chlorine and potassium bromide?
188 g KCl
What is mass of chlorine gas in grams contained in a 15.0 L tank at 23˚C and 3.78 atm of pressure?
What is 166 g