Answer the following question given this paragraph: Hydrocarbons are compounds that contain only carbon and hydrogen. The carbon atoms in hydrocarbons may share single, double, or triple covalent bonds. Unsaturated hydrocarbons contain at least one double or triple bond between carbon atoms. They are classified on the basis of their bonds as alkenes, aromatic hydrocarbons, or alkynes. Q: Hydrocarbons are made up of carbon and what else? Choices: - silicon - nitrogen - helium - hydrogen A:
hydrogen
Answer the following question given this paragraph: Dipole-dipole forces are the attractive forces that occur between polar molecules. A molecule of hydrogen chloride has a partially positive hydrogen atom and a partially negative chlorine atom. In a collection of many hydrogen chloride molecules, they will align themselves so that the oppositely charged regions of neighboring molecules are near each other. Q: What are the attractive forces that occur between polar molecules called? Choices: - induced-dipole forces - particle - dipole forces - ion-dipole forces - dipole-dipole forces A:
dipole-dipole forces
Q: Answer the following question given this paragraph: The active site is specific for the reactants of the biochemical reaction the enzyme catalyzes. Similar to puzzle pieces fitting together, the active site can only bind certain substrates. Q: The active site can only bind certain what? Choices: - electrons - membranes - proteins - substrates A:
A: substrates
Question: Answer the following question given this paragraph: The amount of space matter takes up is its volume . How the volume of matter is measured depends on its state. Q: What term means the amount of space matter takes up? Choices: - weight - density - mass - volume A:
Answer: volume
*Question*
Answer the following question given this paragraph: Another concern about biotechnology is how it may affect the environment. Negative effects on the environment have already occurred because of some GMOs. For example, corn has been created that has a gene for a pesticide. The corn plants have accidentally cross-pollinated nearby milkweeds. Monarch butterfly larvae depend on milkweeds for food. When they eat milkweeds with the pesticide gene, they are poisoned. This may threaten the survival of the monarch species as well as other species that eat monarchs. Do the benefits of the genetically modified corn outweigh the risks? What do you think?. Q: What do monarch butterfly larvae depend on for their food? Choices: - seaweed - pollen - honey - milkweeds A:
**Answer**
milkweeds
Q: Answer the following question given this paragraph: Chemical symbols are useful to concisely represent the elements present in a substance. The letters usually come from the name of the element. Q: Chemical symbols are useful to concisely represent the elements present in a substance. the letters usually come from the name of what? Choices: - month - scientist - discoverer - element A:
A: element