Answers TN-Physical Science SC 26-27 For Credit Naming Covalent CompoundsQuestion 89169

89169

AssignmentMultiple Choice

Naming Covalent Compounds

Question 89169 • TN-Physical Science SC 26-27 (For Credit)

Phosphorus trichloride is used in the production of chemicals that keep plants from growing in a specific area. This compound is made of one phosphorus atom represented by the chemical symbol P and three chlorine atoms represented by the chemical symbol Cl.What is the chemical formula of this compound?

Answer

A

PCl

B

PCl3

C

P3Cl

D

1P3Cl

Explanation

A chemical formula uses element symbols with subscripts to show how many atoms of each element are present. One phosphorus atom is written as P without a subscript, and three chlorine atoms are written as Cl₃. Therefore, the formula is PCl₃, choice B.

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