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State one important difference between a physical change and a chemical change?
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In order for a high temperature boiler or steam engine to produce superheated water, or steam: the heat source must be greater than 100°c the water must be permitted to evaporate quickly the system must be sealed and become pressurized above atmospheric pressure the vapor pressure must be kept below 760 mm(hg)
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Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.
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Given the following chemical equation... 4P+5O2➡️ 2 P2O5
How many moles of P2O5 are formed fr...
How many moles of P2O5 are formed fr...
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