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How is 0.00069 written in scientific notation? A. 69 x 10–5 B. 6.9 x 104 C. 0.69 x 10–3 D. 6.9 x 10–4
Weegy: 0.00069 written in scientific notation is: D. 6.9 x 10^-4 (More)
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Updated 2/1/2014 9:09:08 AM
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A substance that has high reactivity A. easily combines chemically with other substances. B. burns in the presence of water. C. displaces dissolved oxygen. D. has a high boiling point.
Weegy: A substance that has high reactivity easily combines chemically with other substances. (More)
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Which of the following is a physical change? A. sawing a piece of wood in half B. burning a piece of wood C. rust forming on an iron fence D. a copper roof changing color from red to green
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Updated 9/24/2012 7:13:10 PM
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Which of the following is a physical change? A. Sawing a piece of wood in half
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Added 9/24/2012 7:13:02 PM
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When a physical change in a sample occurs, which of the following does NOT change? A. shape B. temperature C. volume D. composition
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Updated 1/28/2014 1:54:15 PM
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When a physical change in a sample occurs, COMPOSITION does NOT change.

Added 1/28/2014 1:54:15 PM
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