Chemistry, 25.07.2019 01:00 ineedhelp773
If an element has the atomic mass (a) of 80 and its atomic number (z) is 35 how many neutrons
Answers: 1
Chemistry, 22.06.2019 12:00, sophiaa23
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
If an element has the atomic mass (a) of 80 and its atomic number (z) is 35 how many neutrons...
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