Introduction To Covalent Bonding Questions
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1
2Name ________________
Introduction to Covalent Bonding
Date:_________________
1. Which atoms are most likely to form covalent bonds?
1) metal atoms that share electrons
3) nonmetal atoms that share electrons
2) metal atoms that share protons
4) nonmetal atoms that share protons
2. Which type of bonding is found in all molecular substances?
1) covalent bonding
3) ionic bonding
2) hydrogen bonding
4) metallic bonding
3. Which type of chemical bond is formed between two atoms of bromine?
1) metallic
2) hydrogen
3) ionic
4) covalent
4. The bond between Br atoms in a Br
molecule is
2
1) ionic and is formed by the sharing of two valence electrons
2) ionic and is formed by the transfer of two valence electrons
3) covalent and is formed by the sharing of two valence electrons
4) covalent and is formed by the transfer of two valence electrons
5. Which pair of atoms will share electrons when a bond is formed between them?
1) Ba and I
2) Br and Cl
3) K and Cl
4) Li and I
6. Which formula represents a compound that is formed primarily by sharing electrons?
1) KCl
2) CaCl
3) CrCl
4) CCl
2
3
4
7. Which formula represents a molecular substance?
1) CaO
2) CO
3) Li
O
4) Al
O
2
2
3
8. Which formula represents a substance that contains covalent bonds?
1) LiCl
2) CaCl
3) K
O
4) CO
2
2
2
9. As a bond between a hydrogen atom and a sulfur atom is formed, electrons are
1) shared to form an ionic bond
3) transferred to form an ionic bond
2) shared to form a covalent bond
4) transferred to form a covalent bond
10. A molecular compound is formed when a chemical reaction occurs between atoms of
1) chlorine and sodium
3) oxygen and hydrogen
2) chlorine and yttrium
4) oxygen and magnesium
11. What is the total number of electrons shared in a double covalent bond?
1) 1
2) 2
3) 3
4) 4
12. An oxygen molecule contains a double bond because the two atoms of oxygen share a total of
1) 1 electron
2) 2 electrons
3) 3 electrons
4) 4 electrons
13. Which two substances are covalent compounds?
1) C
H
O
(s) and KI(s)
3) KI(s) and NaCl(s)
6
12
6
2) C
H
O
(s) and HCl(g)
4) NaCl(s) and HCl(g)
6
12
6
14. In which compound do atoms form bonds by sharing electrons?
1) H
O
2) Na
O
3) CaO
4) MgO
2
2
Chemistry!
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