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Physics, 21.03.2020 02:15 paulinahunl17
1. How does the valence of an element relate to its chemical activity?
2. Identify the statements below as belonging to one of these laws: law of conservation of matter,
law of conversation of energy, or law of definite proportions.
a. Energy can be neither created nor destroyed by chemical means but can be changed from
one form to another.
b. The composition of a chemical compound never varies.
c. Matter can be neither created nor destroyed by chemical means but can be changed from
one form to another.
3. How was the Periodic Table of Elements developed and how are the elements arranged on it?
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1. How does the valence of an element relate to its chemical activity?
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