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Achemical reaction gives off 2,100 kj of heat energy. about how many calories is this ?
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20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?
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What information does a complete ionic equation give that the balanced equation doesn’t show?
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Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol
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Achemical reaction gives off 2,100 kj of heat energy. about how many calories is this ?...
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