Q: Q: Sodium and chloride ions have equal but what charges? Read this paragraph and choose the correct option from the provided answers: Sodium and chloride ions have equal but opposite charges. Opposite electric charges attract each other, so sodium and chloride ions cling together in a strong ionic bond. You can see this in row 2 of the Figure above . (Brackets separate the ions in the diagram to show that the ions in the compound do not actually share electrons. ) When ionic bonds hold ions together, they form an ionic compound. The compound formed from sodium and chloride ions is named sodium chloride. It is commonly called table salt. You can see an animation of sodium chloride forming at this URL: http://www. visionlearning. com/library/module_viewer. php?mid=55. Choices: - path - positive - simple - opposite A:
A: opposite

Q: Q: What is the simplest unit that has the fundamental chemical properties of an element? Read this paragraph and choose the correct option from the provided answers: Covalent Molecules and Compounds Just as an atom is the simplest unit that has the fundamental chemical properties of an element, a molecule is the simplest unit that has the fundamental chemical properties of a covalent compound. Some pure elements exist as covalent molecules. Hydrogen, nitrogen, oxygen, and the halogens occur naturally. Choices: - neutron - nucleus - cell - atom A:
A: atom

Q: Q: Glass breaking is an example of what type of change that doesn't affect the makeup of matter? Read this paragraph and choose the correct option from the provided answers: Physical changes are changes in the physical properties of matter but not in the makeup of matter. An example of a physical change is glass breaking. Choices: - reversible - thermal - chemical - physical A:
A: physical

Q: Q: Through a succession of mitotic cell divisions, what gives rise to a large number of cells? Read this paragraph and choose the correct option from the provided answers: Choices: - condensation - air - cytoplasm - zygote A:
A: zygote