chem final

Convert 3.5 g of Copper to moles.

0.055 moles

___C3H8 + ____O2→ ___H2O + ___CO2

1, 5, 4, 3

If a gas has an initial pressure of 1.2 atm and a volume of 5.4 L, what is its final volume if the pressure is increased to 3.4 atm?

1.9 L

If 1 atm of a gas is present, how many kPa of that gas is present?

101.325 kPa

How many Liters are in 50.0 moles of methane gas at STP?

1120 L

How many atoms of oxygen are represented in 3CaC2O4

12

If a gas has an initial volume of 3.4 mL and an initial pressure of 345 mmHg, what will its final pressure be if the volume is decreased to 0.76 mL?

1543.4 mmHg

C H + 5 O 3 CO + 4H O If I have 10.0 grams of C H , how much water COULD you make?

16.3 g

If a 3.5 mole sample of Na has a pressure of 425 mmHg and a volume of 1.5 L, what is its temperature?

2.9 K

For the reaction 2H2 + O2 → 2H2O, how many moles of water can be produced from 10 moles of Oxygen?

20 moles

For the reaction 2HgO→ 2Hg + O2, how many grams of Oxygen are produced from 15 moles of Mercury (II) Oxide?

240 g

In the equation 2KClO 2KCl + 3O , how many moles of Oxygen are produced when 2.0 moles of KClO decompose completely?

3 moles

For the reaction Co + F2 → CoF2, how many moles of Fluorine are required to produce 302 g of Cobalt Fluoride?

3.12 moles

If a gas is 75°C, what is its temperature in Kelvin?

348 K

If a sample of gas has a pressure of 4.5 atm, a volume of 6 L, and a temperature of 78 K, how many moles of the gas are present?

4.2 moles

If my theoretical yield in a chemical reaction is 10.7 g, but my actual yield is 4.5 g, what is my percent yield?

42%

How many moles of CO2 are in 1000. L of CO2 at STP?

44.64 moles

If 5.0 moles of He has a volume of 3.0 L at 350 K, what's its pressure?

47 atm

If the initial amount of a gas is 2.5 moles in a container of 4.5 L of volume, how many moles will needed to be added if the gas is transferred to a new container with a volume of 9.0 L to keep the pressure and temperature constant?

5.0 mol

If the initial temperature of a gas is 367 K and the initial volume is 4.5 L, what will the volume be in the temperature is increased to 455 K?

5.6 L

How many atoms are in 1 mole of Uranium?

6.02 x 10^23

Which ion would bond with Aluminum to create the following compound? AlX Where X is a polyatomic ion

ClO

Identify the type of bond in the following compound: PCl3

Covalent

Classify Aluminum

Crystalline Metallic Solid

Which product is the insoluble product? (AKA Which is the precipitate?) Cu Br Na OH +2 -1 +1 -1

Cu(OH)2

Convert this word equation into a formula equation: Copper (II) Chloride dissolved in water reacts with solid magnesium to produce magnesium chloride dissolved in water and solid copper. Cl Mg -1 +2

CuCl2(aq) + Mg(s)---> MgCl2(aq) + Cu(s)

Which combination of atoms can form a polar covalent bond?

F and I

The theoretical yield is what you get in the laboratory after doing the experiment.

False

True or False: Ionic compounds can have a positive or negative charge

False

An increase in temperature causes gas molecules to move

Faster

Select the item with the highest viscosity:

Honey

What roman numeral would need to be in the name of the following compound? CuOH

I

Name the following compound: FeCl3

Iron (III) Chloride

Predict the product KBr K Br 3→ +1 -1

K + Br2

Select the compound(s) that would probably be soluble in water

NaCl, MgSO4, SrO

Give the product Cl F HF + Cl -1 -1 2 →

No Reaction

Is oxygen gas, O2, a polar covalent or a nonpolar covalent molecule?

Nonpolar covalent, because the electrons are equally distributed

An ionic bond is an attraction between

Oppositely Charged Ions

Identify the type of bond: P-O

Polar Covalent

A solid that separates from the mixing of two liquids

Precipitate

The starting substance(s) of a reaction

Reactant

Which ion has a charge of -2?

Sulfate

Fe + O FeO Identify the type of reaction

Synthesis

According to the Kinetic Molecular theory, a gas's energy is dependent upon its

Temperature

Which situation best describes effusion?

The leakage of air from a tire

Using the graph, describe the temperature at point B

The temperature is not changing, but the the amount of heat energy is increasing

In the compound MgBr2, what does the "2" mean?

There are 2 Bromide ions for every Magnesium ion

Name the following compound: C3H8

Tricarbon Octahydride

Single bonds are longer than triple bonds

True

True or False: 3.4 atm is a higher pressure than 202.488 kPa

True

How is a covalent bond formed?

When electrons between atoms are shared

Which product would be the solid product? K O Zn Cl K O + ZnCl +1 -2 +2 -1 2 (aq) 2(aq) →

ZnO

How would you describe a substance that has been dissolved in water?

aqueous

Select all units that could possibly be used for pressure of a gas:

atm, mmHg, Torr, Pascal

What happens when a limiting reactant is used up?

reaction stops

Which symbol is the symbol for adding heat to a reaction?

triangle