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the image above shows the crystal shape of the mineral halite. why are halite crystals shaped this way?
a. the sodium and chlorine atoms that make up halite are arranged in asymmetrical, random patterns.
b. the sodium and chlorine atoms that make up halite are arranged in symmetrical, cubic patterns.
c. all mineral types, not just halite, form this shape regardless of how their atoms are arranged.
d. humans design halite crystals to form this shape so that they are easier to stack.

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

How many moles of oxygen react with 12 moles of aluminum