Biology, 22.04.2020 21:37 dieguezisabel
Matter can undergo both chemical and physical changes. What indicates that the change was definitely
chemical?
The temperature changed.
A precipitate formed
The color changed.
A gas formed.
Answers: 1
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Which of the following best describes the purpose of technology?
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Vinegar has a ph of 3, and household ammonia has a ph of 11. is the concentration of h+ greatest in the vinegar or ammonia?
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What happens to the average kinetic energy of water molecules as water freezes?
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Matter can undergo both chemical and physical changes. What indicates that the change was definitely...
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