Chemistry » Page 101

Marcelo Hatfield

Chemistry

Choose the compound below that contains at least one polar covalent bond, but is nonpolar.

a. SeBr4

b. HCN

c. ICl3

d. CF4

e. Both B and C are nonpolar and contain a polar covalent bond.

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Chemistry

Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO3 (is). The equation for the reaction is 2 KClO3 ⟶ 2 KCl + 3 O 2 Calculate how many grams of O 2 (g) can be produced from heating 66.1 g KClO 3 (s).

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Chemistry

Explain how Beer's law can be applied in food, drug or medical testing

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Chemistry

The entropy of a sample of CO2 increases as the CO2 changes from

(1) gas to liquid (3) liquid to solid

(2) gas to solid (4) solid to gas

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Chemistry

Which one of the following is a kind of organic

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Chemistry

The reaction rates of many spontaneous reactions are actually very slow. Which of these statements is the best explanation for this observation?

a. Kp for the reaction is less than one

b. ÎGÂ° for the reaction is positive

c. The entropy change (ÎS) is negative B)

d. The activation energy of the reaction is large.

e. Such reactions are endothermic

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Chemistry

True or False: The lower the temperature, the faster the reaction at the enzyme will occur.

True

False

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Chemistry

Which of the following elements can form diatomic molecules held together by triple covalent bonds?

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Chemistry

Which liquid would be the most difficult to raise or lower the temperature of

A. one with a low density

B. one with a high density

C. one with a high capacity

D. one with a low heat capacity

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Chemistry

How do you make chloroquine from Quinoline

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Chemistry

How many atoms are in 0.075 mol of titanium show your work?

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Britney Alexander

Chemistry

What element is in group 17 and period 2 of the periodic table?

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Chemistry

Explain the steps for naming an oxy-acid (refernce pg. 252)

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Chemistry

If the concentration of CO2 is 2.90 g of CO2 per 1.00 L of soft drink when bottled under 2.0 atm of CO2 pressure, what will be the concentration of the CO2 in the drink after it has been opened and left to come to equilibrium with the atmosphere which has a CO2 partial pressure of 3.0 x 10-4 atm.

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Chemistry

Which of these substances does not come from petroleum coal, asphalt, plastics, or gasoline?

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