Which of the following is the chemical formula for an element?

A chemical symbol is a one- or two-letter designation of an element. Compounds are combinations of two or more elements. A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements. Many elements have symbols that derive from the Latin name for the element.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle

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