Multiple ChoiceWhich of the following substances commonly found in shampoos is highly flammable and has an astringent quality that causes it to evaporate quickly?32views
Multiple ChoiceWhich chemical makes up approximately 60% of the human body and is a major component of most foods, and what are the three elements that compose this chemical?32views
Multiple ChoiceWhich environmental effect is primarily caused by chlorofluorocarbons (CFCs) released from spray cans into the atmosphere?29views
Multiple ChoiceIn the chemical equation C_7H_{16} (l) + 11O_2 (g) → 7CO_2 (g) + 8H_2O (l), what do the symbols in parentheses (l) and (g) indicate?32views
Multiple ChoiceWhen metals react with nonmetals, which type of chemical bond is most commonly formed?37views