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How many grams of hydrogen gas would be required to react with 17.5 grams of oxygen gas to make water
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What type of electromagnetic radiation has a shorter wavelength than blue light
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Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate
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Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?
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How many grams of hydrogen gas would be required to react with 17.5 grams of oxygen gas to make wate...
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