Chemical Nomenclature

MgSO₄

Answer explanation

MgSO4 is the chemical formula for magnesium sulfate, a compound consisting of magnesium, sulfur, and oxygen. Therefore, the correct answer is magnesium sulfate.

Li₂S

Answer explanation

Li2S is the chemical formula for lithium sulfide, which consists of two lithium (Li) atoms and one sulfur (S) atom. Therefore, the correct answer is lithium sulfide.

N₂O₄

Answer explanation

N2O4 is named dinitrogen tetroxide, which indicates it contains two nitrogen atoms and four oxygen atoms. The prefix 'di-' refers to two, and 'tetra-' refers to four, confirming the correct name.

PCl₅

Answer explanation

PCl5 is the chemical formula for phosphorus pentachloride, which indicates it consists of one phosphorus atom and five chlorine atoms. Therefore, the correct answer is phosphorus pentachloride.

CO

Answer explanation

CO stands for carbon monoxide, a colorless, odorless gas that can be harmful when inhaled. Therefore, the correct answer is 'carbon monoxide'.

C₃H₈

Answer explanation

C3H8 is the chemical formula for propane, which is correctly named tricarbon octohydride. However, the answer choices do not include this correct name, hence the correct answer is 0.

Al₂O₃

Answer explanation

Al2O3 is the chemical formula for aluminum oxide, which is a compound made of aluminum and oxygen. Therefore, the correct answer is 'aluminum oxide'.

BaSO₄

Answer explanation

BaSO4 is the chemical formula for barium sulfate, which is a compound consisting of barium, sulfur, and oxygen. Therefore, the correct answer is 'barium sulfate'.

Al(NO₃)₃

Answer explanation

Al(NO3)3 is the chemical formula for aluminum nitrate, which consists of aluminum ions and nitrate ions. Therefore, the correct answer is aluminum nitrate.

Na₂O

Answer explanation

Na2O is the chemical formula for sodium oxide, which consists of sodium (Na) and oxygen (O) atoms. Therefore, the correct answer is sodium oxide.