Chem sem2review

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Alpha, Beta, Gamma

Acid/Bases/Alpha,Beta

Gamma

STP/ Calculations

CalculationsCalculations

2

What particle is emitted in alpha radiation?

a. Electronb. protonc. Helium nucleusd. hydrogen nucleus

c. Helium nucleus

A Beta particle is…

a. Protonb. Electronc. Helium nucleusd. Hydrogen nucleus

b. electron

What is the change in atomic mass when an

atom emits a beta particle?

a. Decrease by 2b. Decrease by 1c. Remains the samed. Increase by 1

b. Decrease by 1

What is the change in atomic mass when an

atom emits gamma radiation?

a. Decrease by 2b. Decrease by 1c. Remains the same d. Increase by 1

c. remains the Same.

What is an acid according to Arrhenius?

a. A substance that ionizes to yield protons in aqueous solutions

b. a substance that is a hydrogen ion donor

c. a substance that accepts electron pairs d. A substance that is a Hydrogen ion

acceptor

b. A substance that is a hydrogen ion donor.

Which of these is an Arrhenius base?

a. LiOHb. NH3c. H2PO4d. CH3COOH

A. LiOH

What is transferred between a conjugate

acid-base pair?

a. Electronb. Protonc. Hydrogen Iond. Hydronium Ion

B. Proton

In the reaction of aluminum bromide with ionized sodium

bromide, which compound is a Lewis acid?

a. Aluminum bromideb. bromide ionc. Sodium iond. none

a. Aluminum bromide

Which is a sulfuric acid?

a. Monoproticb. Diproticc. Triproticd. none

b. diprotic

What instrument is normally used to measure atmospheric

pressure?

a. Thermometerb. Barometerc. Vacuumd. Manometer

B. Barometer

What is one standard atmosphere of pressure in

kilopascals?a. 0 Kpab. 101.3 Kpac. 760 Kpad. 1 Kpa

B. 101.3 Kpa

With what temperature scale is temperature directly

proportional two average kinetic energy?

. a. Celsiusb. Fahrenheitc. Kelvin d. Centigrade

c. Kelvin

What happens to the range of energies of the particles in

matter when the temperature is increased?

a. The range of energies becomes narrowerb. The range of energies becomes broaderc. The range of energies is not changesd. The range of energies cannot be determined

b. The range of energies becomes broader

How many liters of Hydrogen gas are needed to react with CS2 to produce 2.50L of CH4

at STP?

a. 2.50Lb. 50.0Lc. 7.50Ld. 10.0L

d. 10.0L

How many liters of NH3 are needed to react completely

with 30L of NO at STP?

a. 5Lb. 20Lc. 7.5Ld. 120L

b. 20L

How many liters of chlorine gas can be

produced when . 98L of HCl react with excess O2

at STP?a. 0.98Lb. 0.49Lc. 3.9Ld. 2.0L

b. 0.49L

Methane and hydrogen sulfide form when it reacts with Carbon disulfide.

Identify the excess reagent and calculate how much after 36L H2

reacts with 12L of Cs2.a. 3LCS2b. 6LCS2c. 9LCS2d. 12LH2

a. 3LCS2

How many grams of Lead(II) acetate must be used to make 500mL of a solution that is to

contain 10.0mg/mL?

7.84 g of Lead(II)

What would be the molarity of a solution obtained when

50.0mL of 3.00M HCl solution is diluted with 70mL

of H2O?

2.1M

Calculate the molarity when 150mL of H2O is added to 14mL

of 18M H2SO4.

1 .68M

I f 3.25g of a molecular substance is dissolved in 125g of H2O, what is the molecular mass of

the solute it the solution freezes at

-0.93 degrees Celsius?

Molar Mass = 52 g/mol

Calculate the boiling point of a solution containing 5.70g of

sucrose, C12H22O11, dissolved in 50g of benzene, C6H6.

80.9l degrees C