Quiz #3 Covalent Bonds (Science)

What Best Explains Whether Bromine (Br) Of Neon (Ne) Is More Likely To Form A Covalent Bond?

Bromine forms covalent bonds because it fulfills the octet rule.

Which is Most Likely A Covalent Compound?

CF4

In carbon dioxide (CO2), there are two oxygen atoms for each carbon atom. Each oxygen atom forms a double bond with carbon, so the molecule is formed by two double bonds. Two double bonds means that the total number of electrons being shared in the molecule is?

Eight

For a science fair project about food and chemistry, Bill looks around his kitchen for examples of covalent compounds. What evidence can Bill use in his project to show that water (H2O) acts like other covalent compounds?

He can demonstrate that water can be boiled on a simple kitchen stove.

Which Is Mostly Likely A Covalent Compound?

NH3

covalent compound _____ Conduct Electricity Well

Never

Walls made of paraffin wax, a covalent compound, help keep the temperature in a room steady as night changes into day and day into night. What is the most important property of covalent compounds that allows paraffin wax to help keep a room's temperature level?

The wall would absorb extra heat during the day when the sun is out, then release the heat back into the room when the sun goes down.

What statement best describes the arrangement of the atoms in an ethylene molecule?

Two electrons are shared between each hydrogen atom and the carbon atom bonded to it, and four electrons are shared between the carbon atoms.

A candle's wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. The wick is usually surrounded by wax. Which is the most important property of covalent compounds that makes them useful for making candle wax?

low melting point

Which Diagram Shows How The Covalent Bonds most Likely Form In A Phosphorus Trichloride Molecules?

•• •. • • CI • ••. •• • •CI-P-Ci• ••. ••. ••