List four forms of energy that might be absorbed or released during a chemical reaction.

List three signs that could make you think a chemical reaction might be taking place.

Identify which of the following is a chemical reaction: a. melting ice b. burning a candle c. rubbing a marker on paper d. rusting iron

Which occurs as a substance melts? (1) It changes from a solid to a liquid and heat is absorbed. (2) It changes from a solid to a liquid and heat is released. (3) It changes from a liquid to a solid and heat is absorbed. (4) It changes from a liquid to a solid and heat is released.

Identify whether each of the following is a chemical reaction: a. melting ice b. burning a candle c. rusting iron

Two biology instructors set out to evaluate the effects of discovery-based teaching compared to the standard lecture-based teaching approach in the laboratory. The standard lecture-based approach provided a list of instructions to follow at each step of the laboratory exercise, whereas the discovery-based approach asked questions rather than providing directions, and used small group reports to decide the best way to proceed in reaching the laboratory objective. One evaluation of the techniques involved written appraisals of both techniques by students at the end of the course. The comparison of the number of positive and negative responses for both techniques is given in the following table.

Group, Positive Evaluations, Negative Evaluations, Total Discovery, 37, 11, 48 Control, 31, 17, 48

a. Is there a significant difference in the proportion of positive responses for each of the teaching methods? Use $\alpha$=.05. If so, how would you describe this difference? b. What is the approximate p-value for the test in part a?

Describe the relationship between the amplitude of a wave and the energy it carries.

In which molecule is hydrogen bonding the strongest? (1) HF, (2) HCl, (3) HBr, (4) HI.

For the phrase in the first column, write the letter of the synonymous phrase in the second column.

$$\begin{matrix} \text{direct balefully} & \text{a. spoil the toil}\\ & \text{b. naturally matchable}\\ & \text{c. an iniquity from antiquity }\\ & \text{d. born to adorn}\\ & \text{e. usin' a euphemism}\\ & \text{f. sickening chicken}\\ & \text{g. intense defense}\\ & \text{h. administer sinisterly}\\ & \text{i. a diabolical frolic}\\ & \text{j. an inexorable force}\\ \end{matrix}$$

Briefly explain its connection to East Asia between 600 and 1350. 6.Shinto

Predid which atoms will be found in the products of the following reactions: a. Mercury(II) oxide, $HgO$, is heated and decomposes. b. Limestone, $CaCO_3$, reacts with hydrochloric acid, $HCI$. c. Table sugar, $C_{12}H_{22}O_{11}$, burns in air to form caramel.

After all foreign and U.S. taxes, a U.S. corporation expects to receive 2 pounds of dividends per share from a British subsidiary this year. The exchange rate at the end of the year is expected to be $1.53 per pound, and the pound is expected to depreciate 5% against the dollar each year for an indefinite period. The dividend (in pounds) is expected to grow at 10% a year indefinitely. The parent U.S. corporation owns 10 million shares of the subsidiary. What is the present value in dollars of its equity ownership of the subsidiary? Assume a cost of equity capital of 11% for the subsidiary.

An analyst is evaluating securities in a developing nation where the inflation rate is very high. As a result, the analyst has been warned not to ignore the cross-product between the real rate and inflation. A 6-year security with no maturity, default, or liquidity risk has a yield of 20.84%. If the real risk-free rate is 6%, what average rate of inflation is expected in this country over the next 6 years?

Indicate whether each statement is true or false: The solubility of most gases in water decreases as the temperature increases because water is breaking its hydrogen bonding to the gas molecules as the temperature is raised.