Balance these equations:
H² + Br² = HBr
Mg + O² = MgO
H² + O² = H²O...
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If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million
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What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17
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Avariable that is not being directly tested during an experiment should be
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