Chemistry: Ionic and Molecular Compounds, Ions,
and Reactions Exam Questions and Correct
Answers
1. What are the two types of compounds?,Ionic compounds and
molecular compounds correct answer:
2. What makes a compound ionic?,Electrons are transferred from a
metal to a non-metal correct answer:
3. What makes a compound molecular?,Two non-metals share electrons
(cova- lent bonding) correct answer:
4. What is a diatomic element?,A molecular element that travels as a
pair of atoms correct answer:
5. What is an ion?,An atom that has gained or lost electrons and has a
charge correct answer:
6. What happens when an atom loses electrons?,It becomes a
positively charged ion (cation) correct answer:
7. What happens when an atom gains electrons?,It becomes a
negatively charged ion (anion) correct answer:
8. What must the total charge of an ionic compound equal?,Zero correct
answer:
9. What is an ionic compound made of?,Positively charged ions and
negatively charged ions correct answer:
10. What is a multivalent element?,An element that can form more
than one type of ion correct answer:
11. How are multivalent ions named?,Using Roman numerals to
show the charge correct answer:
12. What is a polyatomic ion?,A group of atoms that acts as a single
charged ion correct answer:
13. What charge do most polyatomic ions have?,Negative correct
answer:
14. What is the formula and charge for sulphate?,SO4^2- correct answer:
15. What must always be balanced when writing ionic formulas?,The
charges of the ions correct answer:
16. How are polyatomic ions treated in formulas?,As a single unit
correct answer:
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, 17. What type of elements form molecular compounds?,Two non-metals
correct answer:
18. What is used to name molecular compounds?,Prefixes such as
mono di tri correct answer:
19. When is mono not used?,For the first element in a molecular
compound correct answer:
20. How can you identify an acid by name?,The name contains the word
acid correct answer:
21. How can you identify an acid by formula?,The formula starts with H
correct answer:
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and Reactions Exam Questions and Correct
Answers
1. What are the two types of compounds?,Ionic compounds and
molecular compounds correct answer:
2. What makes a compound ionic?,Electrons are transferred from a
metal to a non-metal correct answer:
3. What makes a compound molecular?,Two non-metals share electrons
(cova- lent bonding) correct answer:
4. What is a diatomic element?,A molecular element that travels as a
pair of atoms correct answer:
5. What is an ion?,An atom that has gained or lost electrons and has a
charge correct answer:
6. What happens when an atom loses electrons?,It becomes a
positively charged ion (cation) correct answer:
7. What happens when an atom gains electrons?,It becomes a
negatively charged ion (anion) correct answer:
8. What must the total charge of an ionic compound equal?,Zero correct
answer:
9. What is an ionic compound made of?,Positively charged ions and
negatively charged ions correct answer:
10. What is a multivalent element?,An element that can form more
than one type of ion correct answer:
11. How are multivalent ions named?,Using Roman numerals to
show the charge correct answer:
12. What is a polyatomic ion?,A group of atoms that acts as a single
charged ion correct answer:
13. What charge do most polyatomic ions have?,Negative correct
answer:
14. What is the formula and charge for sulphate?,SO4^2- correct answer:
15. What must always be balanced when writing ionic formulas?,The
charges of the ions correct answer:
16. How are polyatomic ions treated in formulas?,As a single unit
correct answer:
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7
, 17. What type of elements form molecular compounds?,Two non-metals
correct answer:
18. What is used to name molecular compounds?,Prefixes such as
mono di tri correct answer:
19. When is mono not used?,For the first element in a molecular
compound correct answer:
20. How can you identify an acid by name?,The name contains the word
acid correct answer:
21. How can you identify an acid by formula?,The formula starts with H
correct answer:
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