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100

What is the formula for Molarity?

What is M=n/L?

100

Reduction is ____ of electrons.

What is gain?

100

How many atm. is 2055 torr?

What is 2.703 atm.?

100

How do you convert from L*atm to J?

What is 101.325?

100

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200

Soluble or Insoluble:

AgCl

What is insoluble?

200

Find oxidation numbers of H2SO4.

H= +1

O= -2

S= +6

200

A sample of helium gas occupies a volume of 225 mL at a pressure of 760 torr. Find volume of the gas when pressure is 880 torr and temperature is constant.

What is 194.32 mL?


200

A system absorbs 600 J of heat and work equivalent to 300 J on its surroundings. The change in internal energy is:

What is 300 J?

200
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300

Soluble or Insoluble:

Ca(OH)2

What is soluble?

300

Find oxidation numbers of NH4Cl.

N= -3

H= +1

Cl= -1

300

Name and write all gas laws.

What is: Ideal Gas Law, Boyles Law, Charles Law, Gay-Lussac's Law, Combined Gas Law?

300

How many grams of water can be heated from 40 C to 75 C using 10,025 Joules?

What is 68.42 g?

300

giovanna 

rivera

400

Write balanced equation and net ionic equation:

H3PO4(aq)+CaCl2(aq) -->

Balanced Equation:


2H3PO4(aq)+3CaCl2(aq)→Ca3(PO4)2(s)+6HCl(aq)

Net Ionic Equation:

2PO3−4(aq)+3Ca2+(aq)→Ca3(PO4)2(s)

400

Determine oxidized and reduced species:

MnO−4+I−⟶I2+Mn2+

Oxidized: Mn

Reduced: I

400

A sample of oxygen gas has a volume of 37.6 L at 1.5 atm and 65.˚C. What volume will the sample have at STP?

What is 45.58 L?

400

A gas in a piston with an initial volume of 5.80 L is heated from 25 C to 300 C. The piston expands against a constant pressure of 1.3 atm. Find work (J) done by the system.

What is -703.3 J?

400

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monarrez

500

Write total and net ionic equations:

K2C2O4(aq)+Ba(OH)2(aq)→2KOH(aq)+BaC2O2(s)

Total:

2K+(aq)+C2O2−4(aq)+Ba2+(aq)+2OH−(aq)→2K+(aq)+2OH−(aq)+BaC2O4(s) 

Net:

Ba2+(aq)+C2O2−4(aq)→BaC2O4(s)

500

Identify the oxidizing and reducing agent:

2P(s)  +  5 Cl2(g)  →  2PCl5(g)

Oxidizing agent: Cl2

Reducing agent: P

500

If 7.0 moles of H2 and 2.0 moles of O2 are placed in a 40 L tank at a temperature of 375 C, what will the pressure of the resulting mixture of gases be?

What is 11.9 atm?

500

A 50.0 g aluminum block at 25.0 °C is placed in 100.0 g of water at 80.0 °C. What is the final temperature of the water and aluminum when they reach thermal equilibrium? Assume no heat is lost to the surroundings. (Specific heat of aluminum = 0.90 J/g·°C, specific heat of water = 4.184 J/g·°C)

What is 72.6 C?

500

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