How does this representation of the formation of water. H20, from hydrogen gas, H2, and oxygen gas, O2, demonstrate the law of conservation of mass?
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Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Which description best characterizes the motion of particles in a solid?