Download Regents Chemistry Name: Naming and Mole Unit Test Date: ______

Regents Chemistry
Naming and Mole Unit Test
Name: __________________
Date: _________ Per.: _____
Part I. Multiple Choice.
Fill in the correct answer choice on your answer sheet. You may write on this paper, but
only answers on your answer sheet will be scored. [4 pts each]
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1. What type of ions have names ending in –ide?
1) only gaseous ions
2) only metal ions
3) only anions
4) only cations
2. In which of the following is the symbol for the ion and the number of electrons it
contains given correctly?
1) Ca2+ has 18 electrons
2) S2- has 2 electrons
3) Br- has 34 electrons
4) Al3+ has 16 electrons
3. What is the correct name for the compound NH4Cl?
1) nitrogen chloride
2) nitrogen chlorate
3) ammonium chloride
4) ammonium chlorate
4. Which compounds below are MOLECULAR?
1) CH4
4) Both 1 & 4
2) Mg(OH)2
5) Both 1 & 3
3) SO2
5. Which of the following is a true statement concerning ions?
1) Cations form when an atom loses electrons
2) Anions form when an atom loses protons
3) Anions form when an atom gains protons
4) Cations are negatively charged particles and anions are positively charged
particles
6. Which of the following symbols represent the sulfide ion?
1) S+
3) S2+
2) S
4) S2-
7. What is the correct name of MgCl2?
1) magnesium (II) chloride
2) magnesium chloride
3) magnesium dichloride
4) magnesium chlorate
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9. What is the correct name of SO2?
1) sulfate
2) sulfite
3) sulfur dioxide
4) sulfur oxide
10. Which ion has the same electron configuration as an atom of He?
1) H3) Na+
22) O
4) Ca2+
11. Which of the following numbers is used to balance chemical reactions?
1) superscript
2) charge
3) subscript
4) coefficient
12. Given the chemical equation below, what type of reaction is occurring?
Fe(s) + CuSO4(aq)  Cu(s) + FeSO4(aq)
1) Single replacement
2) Double replacement
3) Combustion
4) Decomposition
13. The reaction above will react because
1) According to Table F at least one product is soluble
2) According to Table F at least one product is insoluble.
3) According to Table J iron is more active than copper.
4) According to Table J copper is more active than iron.
14. A combustion reaction always involves the element
1) hydrogen
3) carbon
2) oxygen
4) nitrogen
15. When the equation Fe2O3 + H2  Fe + H2O is balanced using whole-number
coefficients, what is the coefficient of H2?
1) 1
3) 3
2) 2
4) 6