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An observation that requires measurement is called quantitative observable or qualitative
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Chemistry, 22.06.2019 16:30
Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?
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Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
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How many grams of H2O will be formed when 32.0 g H2 is mixed with 84.0 g of O2 and allowed to react...
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