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Ionic And Covalent Bonding

Test Description: Review formulas, names and bonding tendencies!

Instructions: Answer all questions to get your test result.

1) An oxygen molecule has a double bond because

Aoxygen only bonds to oxygen Boxygen needs two more electrons Coxygen only makes double bonds Doxygen is a noble gas

2) Which molecule is nonpolar?

AH2O BCCl4 CCO DCCl2F2

3) Which substance will dissolve in water to conduct electricity?

ACO2 BNaCl CCCl4 DNH3

4) At STP, fluorine is a gas and bromine is a liquid because

Abromine has stronger intermolecular forces Bbromine has stronger covalent bonds Cfluorine has stronger covalent bonds Dfluorine has stronger intermolecular forces

5) As phosphorus gains electrons, which of the following is true?

Aatomic radius decreases and it has a positive charge Batomic radius increases and it has a positive charge Catomic radius decreases and it has a negative charge Datomic radius increases and it has a negative charge

6) The formula of a copper-containing compound must include

Aa prefix Broman numeral Ccharge Dcolor

7) If a polyatomic ion is present, what kind of bonding is present?

Acovalent Bneither covalent nor ionic Cionic Dboth covalent and ionic

8) How many electrons are shared between the two atoms of a nitrogen molecule?

A2 B8 C6 D4

9) If a substance has a low boiling point and does not easily dissolve in water, it's bonding is most likely

Aboth ionic and covalent Bcovalent Cionic Dneither ionic nor covalent

10) A metal conducts electricity easily because

Aelectrons are mobile Bmetallic bonds are weak Cmetals are shiny Dstationary electrons conduct electricity well

*select an answer for all questions

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