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Compare and contrast physical changes with chemical changes.
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Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.
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The term gas is limited to those substances that exist in the gaseous state at
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In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.
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How many moles of hydrogen gas (H2) would be produced from the reaction of 0.30 moles of water (H2O)...
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