Question: Answer the following question given this paragraph: Halide minerals are salts. They form when salt water evaporates. This mineral class includes more than just table salt. Halide minerals may contain the elements fluorine, chlorine, bromine, or iodine. Some halide minerals combine with metal elements. Common table salt is a halide mineral that contains the elements chlorine and sodium. Fluorite is a type of halide that contains fluorine and calcium. Fluorite can be found in many colors. If you shine an ultraviolet light on fluorite, it will glow!. Q: What type of minerals form when salt water evaporates? Choices: - sulfide - carbonate - fermite - halide A:
Answer: halide

Question: Answer the following question given this paragraph: Pollutants that enter an aquifer spread outward from the source. They spread in the direction the water is moving. Q: Which direction from the source do pollutants in an aquifer spread? Choices: - southward - forward - inward - outward A:
Answer: outward

Question: Answer the following question given this paragraph: Metallic bonds are forces of attraction between positive metal ions and the valence electrons that are constantly moving around them (see the Figure below ). The valence electrons include their own and those of other, nearby ions of the same metal. The valence electrons of metals move freely in this way because metals have relatively low electronegativity, or attraction to electrons. The positive metal ions form a lattice-like structure held together by all the metallic bonds. For an animated version of metallic bonding, go to this URL:. Q: What kind of bonds are forces of attraction between positive metal ions and the valence electrons that are constantly moving around them? Choices: - neutron bonds - liquid bonds - ionized bonds - metallic bonds A:
Answer:
metallic bonds