Blog

Making drugs illegal eliminates future drug use.

(07.02 LC) Which of the following factors affects the amount of heat absorbed by a substance?

Find all solutions of the following equation. ​ sin x cos x – 2 sin x = 0 ​ Select the correct answer, where k is any integer:

(07.07 MC) Consider the following equilibrium reaction having gaseous reactants and products.4HCl + O2 ⇌ 2H2O + Cl2Which of the following would result from increasing only the concentration of hydrochloric acid?

(05.03 MC) What is the empirical formula of a compound containing 5.03 grams carbon, 0.42 grams hydrogen, and 44.5 grams chlorine?

(05.04 MC) Read the given chemical reaction.C2H6 + O2 → CO2 + H2OHow many moles of CO2 are produced during the complete combustion of 3.6 moles of C2H6?

Which of the drugs discussed in this class are most closely linked with crime?  How might these drugs cause crime?

(07.05 MC) When a cube of manganese oxide was added to a solution of hydrogen peroxide, water and oxygen were produced. Manganese oxide was not used up in the reaction. Which of the following is likely to increase the rate of the reaction?

(06.01 MC) A substance in a specific state of matter was transferred from a cylindrical-shaped container to a cube-shaped container. The substance took different shapes in each container. Which of following could be another characteristic of the substance?

Women who smoke are at a greater risk of several health complications associated with smoking (including stroke and heart attack) compared to men who smoke.