Chemistry, 07.07.2019 07:50 bettybales1986
What does the law of conservation of matter / mass state a) mass can not be created or destroyed in a chemical reaction b) mass can be created but not destroyed in a chemical reaction c) mass can be destroyed but not not created in a chemical reaction d) mass can be created and destroyed during a chemical reaction
Answers: 2
Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 22.06.2019 19:00
Nan element’s square on the periodic table, the number with the greatest numerical value represents the
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Chemistry, 22.06.2019 19:30
Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol
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What does the law of conservation of matter / mass state a) mass can not be created or destroyed in...
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