Chemistry, 09.02.2021 20:10 yiyirojastorres
Which of the following is an example that a chemical reaction has occurred?
A. Cut piece of lumber into two pieces
B. Bubbling/fizzing
C. Phase change (ex. solid changes to liquid)
D. Iron being melted
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The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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How much energy is required to vaporize 2 kg of copper? a 4730 kj b 207kj c 9460 kj d 414kj
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Which of the following is an example that a chemical reaction has occurred?
A. Cut piece of lumber...
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