Chemistry, 01.12.2019 06:31 camperjamari12
How are elements organized on the periodic table?
select all that apply.
- into periods or horizontal rows that share a pattern
- by order of relative abundance of the element on earth
- into order of densities from lowest to highest
- into vertical groups of elements that have similar physical and chemical properties
- by increasing order of atomic number
Answers: 3
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Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.
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The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
How are elements organized on the periodic table?
select all that apply.
- into p...
select all that apply.
- into p...
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