Question 1

Write the formula of lead(II)chloride.

Accepted Answer

PbCl<sub>2</sub>

Question 2

How many electrons, protons, and neutrons are in a neutral atom of the following isotope of calcium?

Accepted Answer

20 electrons, 20 protons, and 24 neutrons

Question 3

Give the formula of calcium phosphate.

Accepted Answer

Ca₃(PO₄)₂

Question 4

Name the following compound: KCl.

Accepted Answer

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

Question 5

Use the following to answer questions  
-Use the periodic table above to show where the nonmetals are located.

Accepted Answer

The answer of Use the following to answer questions ...

Question 6

In a cathode ray tube

Accepted Answer

A) electrons pass from the anode to the cathode. 
B) electrons pass from the cathode to the anode. 
C) protons pass from the anode to the cathode. 
D) protons pass from the cathode to the anode. 
A) electrons pass from the anode to the cathode. 
B) electrons pass from the cathode to the anode. 
C) protons pass from the anode to the cathode. 
D) protons pass from the cathode to the anode.

Question 7

How many protons are there in one atom of uranium?

Accepted Answer

The answer of How many protons are there in one...

Question 8

The mineral manganosite is a compound of manganese-55 and oxygen-16. If 77% of the mass of manganosite is due to manganese, what is the empirical formula of manganosite?

Accepted Answer

A) MnO 
B) Mn2O 
C) Mn2O2 
D) MnO2 
E) none of these 
A) MnO 
B) Mn2O 
C) Mn2O2 
D) MnO2 
E) none of these

Question 9

Rutherford's experiment with alpha particle scattering by gold foil established that

Accepted Answer

A) protons are not evenly distributed throughout an atom. 
B) electrons have a negative charge. 
C) electrons have a positive charge. 
D) atoms are made of protons, neutrons, and electrons. 
E) protons are 1840 times heavier than electrons. 
A) protons are not evenly distributed throughout an atom. 
B) electrons have a negative charge. 
C) electrons have a positive charge. 
D) atoms are made of protons, neutrons, and electrons. 
E) protons are 1840 times heavier than electrons.

Question 10

Predict the formula for the binary compound formed between potassium and sulfur.

Accepted Answer

The answer of Predict the formula for the binary compound...

Question 11

Write the formula of ammonium chlorate.

Accepted Answer

The answer of Write the formula of ammonium chlorate....

Question 12

Marie Curie suggested the name "radioactivity" to describe the spontaneous emission of particles and/or radiation.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following elements is chemically similar to potassium?

Accepted Answer

A) calcium 
B) arsenic 
C) phosphorus 
D) cerium 
E) cesium 
A) calcium 
B) arsenic 
C) phosphorus 
D) cerium 
E) cesium

Question 14

Predict the formula for the binary compound formed between barium and phosphorus.

Accepted Answer

A) BaP 
B) Ba2P 
C) BaP2 
D) Ba2P3 
E) Ba3P2 
A) BaP 
B) Ba2P 
C) BaP2 
D) Ba2P3 
E) Ba3P2

Question 15

How many electrons, protons, and neutrons does an iron-55 atom have?

Accepted Answer

26 electro

Question 16

What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of 3H?

Accepted Answer

Question 17

An anion is defined as

Accepted Answer

A) a charged atom or group of atoms with a net negative charge. 
B) a stable atom. 
C) a group of stable atoms. 
D) an atom or group of atoms with a net positive charge. 
A) a charged atom or group of atoms with a net negative charge. 
B) a stable atom. 
C) a group of stable atoms. 
D) an atom or group of atoms with a net positive charge.

Question 18

Give the number of protons (p), electrons (e), and neutrons (n)in one atom of nickel-62.

Accepted Answer

A) 28 p, 28 e, 28 n 
B) 28 p, 28 e, 34 n 
C) 62 p, 28 e, 28 n 
D) 62 p, 62 e, 28 n 
A) 28 p, 28 e, 28 n 
B) 28 p, 28 e, 34 n 
C) 62 p, 28 e, 28 n 
D) 62 p, 62 e, 28 n

Question 19

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

Accepted Answer

A) Ca3N2 
B) Ca(NO3)2 
C) Ca2NO3 
D) Ca2NO2 
E) CaNO3 
A) Ca3N2 
B) Ca(NO3)2 
C) Ca2NO3 
D) Ca2NO2 
E) CaNO3

Question 20

The table below describes four atoms.   Which atoms represent the same element?

Accepted Answer

Atoms A and D repres

Exam 2: Atoms, Molecules, and Ions

Write the formula of lead(II)chloride.

How many electrons, protons, and neutrons are in a neutral atom of the following isotope of calcium?

Give the formula of calcium phosphate.

Name the following compound: KCl.

Use the following to answer questions -Use the periodic table above to show where the nonmetals are located.

In a cathode ray tube

How many protons are there in one atom of uranium?

The mineral manganosite is a compound of manganese-55 and oxygen-16. If 77% of the mass of manganosite is due to manganese, what is the empirical formula of manganosite?

Rutherford's experiment with alpha particle scattering by gold foil established that

Predict the formula for the binary compound formed between potassium and sulfur.

Write the formula of ammonium chlorate.

Marie Curie suggested the name "radioactivity" to describe the spontaneous emission of particles and/or radiation.

Which of the following elements is chemically similar to potassium?

Predict the formula for the binary compound formed between barium and phosphorus.

How many electrons, protons, and neutrons does an iron-55 atom have?

What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of 3H?

An anion is defined as

Give the number of protons (p), electrons (e), and neutrons (n)in one atom of nickel-62.

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

The table below describes four atoms. Which atoms represent the same element?

Chemistry: The Study of Change

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

What is the total number of atomic particles (protons, neutrons, and electrons)in an atom of ³H?