1.London smog or SOx related smog

a.is mainly related to pollutants produced by cars & trucks
b.is not from smelters and fuel burning
c.is not produced by natural processes
d.is related to acid precipitation

2.Lakes and streams that seem to be able to resist the effects of acid precipitation

a.are not in regions of acid soil
b.are in regions that have no sources of phosphate
c.are in regions that have calcium carbonate poor soil and rocks
d.are in regions where there are many protestors against environmental degradation.

3.Chemical antacids have the following ingredients

a.H2SO4, HCl, HBr, HNO3
b.KOH, NaOH, LiOH
c.NaHCO3, CaCO3, Mg(OH)2
d.SOx, NOx

4.Acids react with bases to form

a.glucose and carbon dioxide
b.ammonia and phosphate
c.hydrogen and oxygen
d.salt and water

5.To purify drinking water the oxidizing agent substances ____&____are used

a.phosphate & nitrates
b. steroids & endorphins
c. activated sludge & calcium carbonate
d. ozone & chlorine

6.Non-metals such as oxygen, chlorine and fluorine are considered to be

a.oxidizing agents
b. reducing agents
c. acidic agents
d. basic agents

7.The most recent data ranks _______ as the probable cause(s) of acid precipitation.

a. SOx
b. NOx
c. particulates (soot)
d. carbon monoxide
e. a & b

8. Eutrophication

a.can be slowed by removal of phosphate in fresh water (college pond)
b.can be slowed by removal of nitrate in salt water (Long Island Sound, Lower Hudson River)
c. is not a natural process
d. a & b above
e. a, b, c above

9.Aerobic activity in humans

a. Will burn fat
b. will produce lactic acid
c. uses oxygen
d. produces alcohol
e. a & c

10.Enzymes

a.are catalysts
b. are fats
c. unaffected when stressed as in aerobic exercise
d.all above

11.The greenhouse effect is

a. caused by carbon dioxide
b. caused by ozone
c. caused by lactic acid
d. all above

12.A false statement concerning exercise and the consequences is

a.much more protein is needed by athletes than by ordinary people
b.men need the same or smaller quantities of minerals such as iron than women
c.water is all that is necessary in normal exercise; not Gatorade etc drinks
d. oxygen transport efficiency is enhanced by exercise

13.In experiment 7, vinegar, a titration was completed to determine the % acetic acid in vinegar samples. Choose the true statement(s).

a.acetic acid and sodium hydroxide react in definite proportions such as 1 to 1.
b.At the end point the color was pink.
c.if the buret is inadvertently left open so that NaOH solution drips into the vinegar sample after a pink color remains for 20 sec, a false low value for % acetic acid will be found upon calculation.
d. a and b are true

14.In experiment 8, the acidity of the club soda as expressed in moles acid was

a.lower at high temperature because less carbon dioxide gas dissolves at high temperatures
b.higher at high temperature due to decreased carbon dioxide gas dissolved
c.not related to temperature in a regular pattern
d. related to how deep the pink color was

15.Photosynthesis - the kind that produces glucose and oxygen from carbon dioxide and water

a.is an endothermic (energy absorbing) reaction
b. needs a catalyst
c. proceeds in the light only
d. all above

16. Photochemical smog is based on

a. light
b. hydrocarbons
c. NOx
d. ozone
e. all the above

17.Removal of dissolved chemicals such as phosphate is part of water treatment when waste water is returned to a body of water.

a. this is primary treatment
b. this is secondary treatment
c. this is tertiary treatment
d. none above

18.Oxygen in humans is

a. necessary in pyruvic acid oxidation to carbon dioxide and water
b. used in carbohydrate oxidation to pyruvic acid
c. taken in through gills
d. disrupted by CO
e. a & d above

19.Aerobic exercise

a.grows no fat burning enzymes
b. reduces the efficiency of oxygen transport and use by the body
c.reduces the efficiency of the blood buffer
d.can increase secretion of endorphins and enkephalins
e.b, c, d above

20.Pain in the muscles during anaerobic exercise is thought to arise from

a.none below
b.pyruvic acid accumulation
c.bubbles of carbon dioxide
d.neurotransmitter destruction

21.If N were burned in an engine, and the resulting oxide collected in a water filled jug,

EQUATION: N + O2 = NO2

a.the universal indicator in the water at the bottom of the jug would become red (acid indication) after a period of burning
b.nitrogen (N) was reduced
c.two compounds form an element
d.The pH of the water should go up

22.Rates of reaction increase when

a.concentration is decreased
b.temperature is reduced
c.catalyst is not used
d.solids are not used and instead powders are used for a given substance

23.The second law of thermodynamics accounts for the fact

a.that ice melts in hot water
b.that the ocean shore is cooler than inland on a hot summer day because heat flows into the cool ocean
c.that we can neither gain nor lose energy
d.that a refrigerator without using energy takes heat from the cold inside and places it in the warm outside.

24.The way to reduce waste with the least damage to the environment is

a. recycle materials
b. place in sanitary fill (dump)
c. reuse products
d. incinerate waste (burn)

25.When the light burned brightly in a lecture demonstration of the ability of various solutions to conduct electricity we could conclude

a. that if the substance were an acid it was a weak one
b. that the substance was a strong electrolyte
c. that the substance could only be a salt
d. that the pH was about 7

26. The ozone layer

a. is important regarding ultra violet light penetration of the atmosphere
b. protects from infra red radiation coming from the sun
c. causes the greenhouse effect
d.can not be damaged by reactions initiated by chlorofluorocarbons (CFCs)
e.is made up of an isotope of oxygen

27. CFC

a. not implicated in the greenhouse effect
b. is a very dangerous poison
c. affects the ozone
d. is used in refrigeration/air conditioning
e. c & d

28.In all titrations one needs to know

a.the definite proportions of reactant substances in the particular reaction involved
b.an indicator of some sort to signal when the correct proportions have reacted
c. one reactant of known strength or a way to find out
d. a & b only
e. a, b, c above

29.The following substances are basic compounds

a. NaOH, KOH
b. SOx, NOx
c. C, S
d. HCl, HF

30. Water is a "bent" molecule do to the geometry of the oxygen orbitals in use to form bonds to the two hydrogen atoms.

a. This gives rise to hydrogen bonding in water
b. The crystals we call snow are due to this geometry
c.Hydrogen bonding was the cause of slowness of evaporation for water in the lecture demo
d.this geometry leads to the polar nature of water molecules enabling them to dissolve polar substances such as salt
e. all above

Exam is completed---be sure you have written the color on your answer sheet. Turn in both the answer sheet & booklet. Be sure to fill in SS# on answer sheet. Be sure to fill in all information on cover of this booklet!