When you mixed 20 grams of magnesium and an excess of nitric acid, 1.7 grams of hydrogen was actually produced. What is the percent yield of hydrogen during this reaction?

Mg + 2HNO3 Mg (NO3) 2 + H2

3.3 %

48.5 %

25.7 %

102 %

98 %

Which color of white light bends the most when it is refracted by a prism?

Predict the products for nacl+cabr2

Which one of the following statements about sodium chloride is incorrect a) within the crystal, each sodium ion is surrounded by chloride ions b) each sodium ion is attracted to chloride ions because of their opposite charges c) each sodium ion is

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Using density what is the mass in grams of 150mL of a liquid with a density of 1.4 g/mL

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When you light a fire place what energy transformation takes place