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Which of the following is always altered when a substance undergoes a chemical change?
A) mass of the substance
B) arrangement of the atoms composing the substance
C) color of the substance
D) state of matter of the substance
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Write a paragraph at least 10 sentences explaining how rocks are used today in society
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What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.
Answers: 1
Chemistry, 22.06.2019 10:10
Stage in which a star’s outer layers have started to cool and grow outward?
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