DATABASE FUNDAMENTALS
USING THE RIGHT LEFT AND MID FUNCTIONS IN EXCEL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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=10+5-2
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=5*3+5
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=10%2/3
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=(5+2)*3
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=10-5-3
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Detailed explanation-1: -Li3N is an incorrect chemical formula.
Detailed explanation-2: -Convention used in Writing Chemical Equations The correct formulas of the reactants are always written on the left side of the equation. The correct formulas of the products are always written on the right side of the equation. The reactants and products are separated by an arrow pointing toward the products.
Detailed explanation-3: -In molecular formulae, the elements are denoted by their respective symbols (as in the periodic table) and the number of atoms of each element in the molecule is written in subscript. For example-the molecular formula for glucose is C6H12O6.
Detailed explanation-4: -The rules for writing a chemical formula are as follows: The valencies or charges on the ion must balance. When a compound consists of a metal and a non-metal, the name or symbol of the metal is written first. Whereas non-metals are written on the right.