What's the percentage composition of oxygen in naoh
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Chemistry, 22.06.2019 07:10
Which of these conditions most likely produces an unstable isotope?
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Chemistry, 22.06.2019 20:00
State one important difference between a physical change and a chemical change?
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Chemistry, 23.06.2019 01:00
Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green
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Chemistry, 23.06.2019 06:00
Robert leaves a chocolate bar in his car while attending school all day. when he goes to his car in the afternoon, the bat has changed into gooey liquid. what happened to the chocolate bar
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