Naming and Writing Covalent Bonds

All of the following are covalent bonds EXCEPT

• B₂Si

• NF₅

• KI

• CO₂

The correct chemical formula for selenium tetrafluoride is

• SiF₃

• SeF₃

• SiF₄

• SeF₄

What is the correct chemical formula for dinitrogen trioxide?

Tags

NGSS.HS-PS1-1

What is the correct chemical name for Si₂Br₆?

Which is the correct chemical name for hexaboron tetrafluoride?

• B₇F₃

• B₆F₄

• B₇F₄

• Bo₆F₄

Examples of covalent compounds necessary for life are proteins, lipids, carbohydrates, and nucleic acids. Covalent bonding produces

• ions

• molecules

• alloys

Tags

NGSS.HS-LS1-6

Which compound is produced by covalent bonding?

• selenium tetrafluoride

• potassium nitrate

• beryllium sulfide

• magnesium chlorate

Animals breathe in oxygen (O₂). To achieve stability, an oxygen atom forms a covalent bond with another oxygen atom by

• gaining an electron

• sharing its one electron

• gaining two electrons

• sharing its two electrons

Tags

NGSS.HS-PS1-1

If a protein molecule is composed of carbon, hydrogen, oxygen, and nitrogen, what makes protein a covalent bond?

• Its molecular structure is made of metal elements.

• Its molecular structure is composed of nonmetal elements.

• Its ions are made of metals and polyatomic ions.

• Its ionic structure is mostly made of noble gases.

Tags

NGSS.HS-PS1-4

What is the chemical formula for phosphorus trichloride?

• PCl₃

• Cl₃P

• KCl₄

• PCl₄