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Which two parts are needed to make a neutral atom of nitrogen A. Electron clouds with a total of 14 electrons B. Electron cloud is a total of seven electrons C. A nucleus with seven protons and seven neutrons D. A nucleus with three protons and four neutrons
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Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
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Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
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Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
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Which two parts are needed to make a neutral atom of nitrogen A. Electron clouds with a total of 14...
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