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Chemistry, 05.07.2020 14:01 samanthashade3434
Conservation of Matter 1 ITEM BANK: matter 10 Nitrogen chemical conserved equal freezes mass melts physical unequal vaporizing Combustion, or blank , is an example of one of the most familiar chemical changes. Melting of ice, likewise, is one of the most common examples of physical changes. When a piece of coal burns, blank combines with the carbon in the coal. The products are carbon dioxide gas, water vapor, and a lot of ash. After careful measurements are taken, the blank of the reactants (coal and oxygen) is to the mass of the products (carbon dioxide, water vapor, and ash). During the blank reaction, the quantity of matter is unchanged. Similarly, when 10 grams of ice blank , grams of water is obtained. Mass is blank in this blank change as well.
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