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Elements
Compounds
Stoichometry 1
Stoichometry 2
Miscellaneous
100

The atomic symbol (with mass number & charge) of the element with 47 protons, 46 electrons, and 60 neutrons

What is 107 / 47 Ag +1

100

This is the formula for Chromium (III) hydroxide

What is Cr(OH)3?

100

_ CH4 + _ O2 -> _ CO2 + _ H2O

1 2 1 2

100

Balance this john P4 + F2 -> PF3

1 6 4

100
Which one is a physical change, and which one is a chemical change?


1) neutralization of a stomach acid with an antacid

2) Lead becomes a liquid when heated to 601oC

1) Chemical

2) Physical

200

The category of elements that 

1) Sb is in

2) Xe is in

3) Fe is in

4) Ca is in

What are metalloids, noble gases, transition metals, and alkaline earth metals?

200

This is NH4NO3

What is ammonium nitrate?

200

1 kg of N2 is reacted with excess H2 in the reaction:


N2 + 3H2 -> 2NH3

How many moles of NH3 are produced?

71.4 mol

200
5 moles of Potassium Chlorate are reacted using the UNBALANCED eq:

_ KClO3 -> _ KCl + _ O2

How many moles of Oxygen gas are created?

7.5 moles

200

Extensive or intensive?

1) Boiling Point 

2) Pressure 

1) Intensive

2) Extensive

300

The mass number of a neutral element with 15 electrons and 16 neutrons

What is 31? (Phosphorous)

300

These are the formula for H2SO4 and HCl

What are sulfuric acid and Hydrochloric Acid?

300


2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l)

What mass of methanol is combusted in a reaction that produces 112 L of CO2 at STP?

160 grams

300

How many grams of Magnesium Nitride is required to produce 25 grams of magnesium hydroxide in:
Mg3N2 + H2O -> Mg(OH)2 + NH3

(BALANCE FIRST)

14.43 grams

300

At what temperature does oC = oF? (Yes this is on the practice test I'm not making this up)

-40

400

Copper has two naturally occuring isotopes, Cu 63 (62.9396 amu) & Cu 65 (64.9278 amu). If copper has an average atomic mass of 63.546 amu, what is the % abundance of each element?

Cu 63 - 69.15

Cu 65 - 30.85

400

Calculate the % mass of each element in PbSO4

Pb: 68.33%, S: 10.57%, O:21.2%

400

Zn + 2HCl -> ZnCl2 + H2

If we have 26 grams of Zn and 42 grams of HCl, what is the limiting reactant?

Zn

400

3 Si + 2 N2 -> Si3N4

If 21.44 moles of Si reacts with 17.62 moles of N2, what is the limiting reactant?

Si

400

The density of liquid chloroform is 1.48 g/mL. What is its density in lb/in3?

2.54 cm = 1 in

2.205 lb = 1 kg

1 mL = 1 cm3

0.0535 lb/in3

500
Europium has two naturally occuring isotopes - Eu151, which has a mass of 150.92 amu & an abundance of 47.8, and Eu153, which has a mass of 152.92. 


What is the average atomic mass?

151.96 amu

500

What is the empirical formula of the following compound:

55.3% K, 14.6% P, 30.1% O

K3PO4

500

Cu + 2AgNO3 -> 2Ag + Cu(NO3)2

How many grams of Ag will be produced from 5.00 g of Cu and 1.00 g of AgNO3

0.635 g

500

2Al + 6HBr -> 2AlBr3 + 3H2

If 3.22 moles of Al react with 4.96 moles of HBr, how many moles of H2 are formed?

2.48 mol H2

500
The mass of an empty flask is 25.631 g. When it is filled with water (density = 1g/cm3), its mass is 35.432 g. It is emptied and then filled with Sodium Hydroxide solution, at which point its mass is 36.138 g. What is the density of the Sodium Hydroxide Solution?

1.07 g/cm3