Myrcene is a hydrocarbon found in the essential oils of certain plants. It has a molecular formula of C10H16. If a sample of pure myrcene was analyzed and found to

contain 90.0 grams of carbon, how many grams of hydrogen would it contain?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles