Question: Answer the following question given this paragraph: All compounds form when atoms of different elements share or transfer electrons. In water, the atoms share electrons. In some other compounds, called ionic compounds , atoms transfer electrons. The electrons actually move from one atom to another. When atoms transfer electrons in this way, they become charged particles called ions. The ions are held together by ionic bonds. Q: When electrons move from one atom to another, they become what? Choices: - particles - neons - atoms - ions A:
Answer: ions

Question: Answer the following question given this paragraph: Q: In mismatch repair, other enzymes remove and replace incorrectly paired nucleotides that have resulted from what? Choices: - typing errors - interaction errors - evolution errors - replication errors A:
Answer: replication errors

Question: Answer the following question given this paragraph: Salt isn't the only solute that dissolves in water. In fact, so many things dissolve in water that water is sometimes called the universal solvent. Water is such a good solvent because it is a very polar compound. A polar compound has positively and negatively charged ends. Solutes that are also charged are attracted to the oppositely charged ends of water molecules. This allows the water molecules to pull the solute particles apart. Q: Which compound has positively and negatively charged ends? Choices: - tumultuous compound - non-polar compound - real compound - polar compound A:
Answer:
polar compound