Question 1

A phosphide ion has:

Accepted Answer

A)  10 protons and 13 electrons
B)  12 protons and 15 electrons
C)  15 protons and 15 electrons
D)  15 protons and 18 electrons
E)  18 protons and 21 electronsF) D) and E)
G) C) and D)

Question 2

What is the formula for the ionic compound formed by magnesium and iodine?

Accepted Answer

A)  MgI
B)  Mg2I
C)  MgI2
D)  MgI3
E)  Mg3IF) A) and D)
G) A) and C)

Question 3

Give the formula for potassium oxide.

Accepted Answer

The answer of Give the formula for potassium oxide....

Question 4

Give the formula of calcium phosphate.

Accepted Answer

The answer of Give the formula of calcium phosphate....

Question 5

Give the formula of ammonium sulfate.

Accepted Answer

The answer of Give the formula of ammonium sulfate....

Question 6

What are isotopes?

Accepted Answer

Atoms of the same el...

Question 7

The formula for calcium phosphate is

Accepted Answer

A)  CaPO4.
B)  Ca3(PO4) 2.
C)  Ca2(PO4) 3.
D)  Ca3P2.
E)  Ca3(PO3) 2.F) C) and D)
G) A) and C)

Question 8

What is the formula for the ionic compound formed by calcium and selenium?

Accepted Answer

A)  CaSe
B)  Ca2Se
C)  CaSe2
D)  Ca3Se
E)  CaSe3F) B) and C)
G) A) and C)

Question 9

What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of 40Ca?

Accepted Answer

Question 10

Which of the following scientists developed the nuclear model of the atom?

Accepted Answer

A)  John Dalton
B)  Robert Millikan
C)  J. J. Thomson
D)  Henry Moseley
E)  Ernest RutherfordF) A) and B)
G) A) and C)

Question 11

Name the following compound: Mg(NO3)2.

Accepted Answer

magnesium nitrate

Question 12

Name the following compound: KCl.

Accepted Answer

The answer of Name the following compound: KCl....

Question 13

Which of the following is the formula for hydrobromic acid?

Accepted Answer

A)  KBr
B)  HBr
C)  HBrO
D)  HBrO2
E)  HBrO3F) A) and C)
G) D) and E)

Question 14

Give the formula for carbon disulfide.

Accepted Answer

The answer of Give the formula for carbon disulfide....

Question 15

Write the formula of lead(II)chloride.

Accepted Answer

PbCl<sub>2</sub>

Question 16

An oxide ion, O2-, has:

Accepted Answer

A)  8 protons and 10 electrons
B)  10 protons and 8 electrons
C)  8 protons and 9 electrons
D)  8 protons and 7 electrons
E)  10 protons and 7 electronsF) A) and B)
G) A) and C)

Question 17

What are the three subatomic particles that are important in chemistry?

Accepted Answer

electrons,...

Question 18

The chemical name for ClO2-  is chlorite ion. Therefore, the name of HClO2 is

Accepted Answer

A)  hydrochloric acid.
B)  chloroform.
C)  hydrogen dioxychloride.
D)  chlorous acid.
E)  chloric acid.F) A) and E)
G) C) and D)

Question 19

The correct name for KHCO3 is

Accepted Answer

A)  calcium bicarbonate.
B)  calcium carbonate.
C)  potassium carbonate.
D)  calcium hydrogen carbon trioxide.
E)  potassium hydrogen carbonate.F) D) and E)
G) A) and D) E

Question 20

Write the formula of calcium carbonate.

Accepted Answer

The answer of Write the formula of calcium carbonate....

Exam 2: Atoms, Molecules, and Ions

A phosphide ion has:

Correct AnswerverifiedShow Answer

What is the formula for the ionic compound formed by magnesium and iodine?

Correct AnswerverifiedShow Answer

Give the formula for potassium oxide.

Correct AnswerverifiedShow Answer

Give the formula of calcium phosphate.

Correct AnswerverifiedShow Answer

Give the formula of ammonium sulfate.

Correct AnswerverifiedShow Answer

What are isotopes?

Correct AnswerverifiedAtoms of the same el...View AnswerShow Answer

The formula for calcium phosphate is

Correct AnswerverifiedShow Answer

What is the formula for the ionic compound formed by calcium and selenium?

Correct AnswerverifiedShow Answer

What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of 40Ca?

Correct AnswerverifiedShow Answer

Which of the following scientists developed the nuclear model of the atom?

Correct AnswerverifiedShow Answer

Name the following compound: Mg(NO3)2.

Correct Answerverifiedmagnesium nitrate

Name the following compound: KCl.

Correct AnswerverifiedShow Answer

Which of the following is the formula for hydrobromic acid?

Correct AnswerverifiedShow Answer

Give the formula for carbon disulfide.

Correct AnswerverifiedShow Answer

Write the formula of lead(II)chloride.

Correct AnswerverifiedPbCl2

An oxide ion, O2-, has:

Correct AnswerverifiedShow Answer

What are the three subatomic particles that are important in chemistry?

Correct Answerverifiedelectrons,...View AnswerShow Answer

The chemical name for ClO2- is chlorite ion. Therefore, the name of HClO2 is

Correct AnswerverifiedShow Answer

The correct name for KHCO3 is

Correct AnswerverifiedE

Write the formula of calcium carbonate.

Correct AnswerverifiedShow Answer

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Atoms of the same el...
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What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of ⁴⁰Ca?

Correct Answer
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Name the following compound: Mg(NO₃)₂.

Correct Answer
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magnesium nitrate

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PbCl₂

An oxide ion, O^2-, has:

Correct Answer
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electrons,...
View Answer

The chemical name for ClO₂^- is chlorite ion. Therefore, the name of HClO₂ is

Correct Answer
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The correct name for KHCO₃ is

Correct Answer
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E

Correct Answer
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