The name of the positively charged nonmetal ion is changed to end in –ide, is not true of binary compounds.
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Try photo math it will probably be more helpful
Answer:
Explanation:
First we find the Molecular weight of CaCl2
looking at the periodic table the MW of Ca is 40.078 and Cl is 35.453 and the ratio of ca to cl is 1:2 so we multiply cl by 2 which is 35.453*2=70.906
we add them together: 40.078 + 70.906 = 110.984 g/mol
now:
* 3.45 mol
the mol cancels out and we left with 3.45 * 110.984 grams = 382.89 grams
Scientific laws are not proven, rather they are assumed to be true by the results of other experiments. Basically, this scientist is saying that he has proven a scientific law, which is not possible. He most likely has proven a scientific theory if he has proven something.
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