EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or False:The chemical formula for a compound shows what elements the compound contains.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -A chemical formula shows the elements that make up the compound and the numbers of atoms of each element in the smallest unit of that compound, be it a molecule or a formula unit. Knowing the names of the elements and a few basic rules allows us to name simple compounds given the chemical formula.

Detailed explanation-2: -A compound is a substance composed of two or more elements, chemically combined in a fixed proportion.

Detailed explanation-3: -A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements. If only one atom of a specific type is present, no subscript is used. For atoms that have two or more of a specific type of atom present, a subscript is written after the symbol for that atom.

Detailed explanation-4: -Answer and Explanation: The statement is true. Elements and compounds are examples of pure substances. The simplest units of elements and compounds are atoms and molecules.

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