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17 Nov 2019
Give an example of: (1) a homogeneous mixture, (2) a heterogeneous mixture b) Substance A can be chemically decomposed into substances B and C. B and C cannot be decomposed further. Classify A, B, and C as elements or compounds. c) Classify each of the following as a physical change or a chemical change. (1) the decomposition of water into hydrogen and oxygen, (2) melting ice. d) The boiling point of ethanol is 78degreeC. Is this a physical or chemical property of ethanol? Is it extensive or intensive?
Give an example of: (1) a homogeneous mixture, (2) a heterogeneous mixture b) Substance A can be chemically decomposed into substances B and C. B and C cannot be decomposed further. Classify A, B, and C as elements or compounds. c) Classify each of the following as a physical change or a chemical change. (1) the decomposition of water into hydrogen and oxygen, (2) melting ice. d) The boiling point of ethanol is 78degreeC. Is this a physical or chemical property of ethanol? Is it extensive or intensive?
Hubert KochLv2
3 Jun 2019