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Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
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If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied
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An excess of zinc is added to 100 cm3 of 1.0 mol/dm3 hydrochloric acid,
The equation for the reacti...
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