Question 1

Which subatomic particle has a negligible mass and a negative charge?

Accepted Answer

Electron

Question 2

What is the general term for both visible and invisible radiant energy?

Accepted Answer

Light

Question 3

How many neutrons are in the nucleus of $$^{118}_{50}\mathrm{Sn}$$?

Accepted Answer

68

Question 4

Given that the only naturally occurring isotope of sodium is $$^{23}\mathrm{Na}$$, what is its isotopic mass?

Accepted Answer

22.99 amu

Question 5

What is the term for the minimum amount of energy required to remove an electron from a neutral atom in the gaseous state?

Accepted Answer

Ionization energy

Question 6

Which of the following is a representative element?

Accepted Answer

All of the above

Question 7

Which fourth period transition element has the highest atomic number?

Accepted Answer

Zinc (Zn)

Question 8

Which of the following elements are fourth period semimetals?

Accepted Answer

Germanium (Ge) and Arsenic (As)

Question 9

Which of the following is an alkali metal?

Accepted Answer

None of the above

Question 10

Predict the density for rhodium (Rh), given the density of cobalt (Co) is $$8.89\ \mathrm{g/cm^3$}$$ and iridium (Ir) is $$22.65\ \mathrm{g/cm^3$}.$$

Accepted Answer

$$15.77\ \mathrm{g/cm^3$}$$

Question 11

The compound $$\mathrm{Au_2Se_3} is $$classified as which of the following?

Accepted Answer

Binary ionic

Question 12

What is the Stock system name for $$\mathrm{Cu^+}$$?

Accepted Answer

Copper(I) ion

Question 13

What is the systematic name for $$\mathrm{N$$^{3-}$$}$$?

Accepted Answer

Nitride ion

Question 14

What is the chemical formula for the manganese(II) ion?

Accepted Answer

$$\mathrm{Mn$$^{2+}$$}$$

Question 15

What is the predicted ionic charge of an element in Group IIA/2?

Accepted Answer

$$2+$$

Question 16

What is the systematic name for $$\mathrm{$$CrO_4$$^{2-}}$$?

Accepted Answer

Chromate ion

Question 17

What is the name of a reaction in which two cations in different compounds exchange anions?

Accepted Answer

Double replacement

Question 18

Which of the following is evidence for a chemical reaction?

Accepted Answer

All of the above

Question 19

Which statement best describes the reaction: $$\mathrm{Na_2CO_3(s) \rightarrow Na_2O(s) + CO_2$(g)}$$?

Accepted Answer

Solid sodium carbonate decomposes to give solid sodium oxide and carbon dioxide gas.

Question 20

What is the coefficient of oxygen gas after balancing the equation: $$\_\_\_\mathrm{P(s)} + \_\_\_\mathrm{O_2$(g)} \rightarrow \_\_\_\mathrm{P_2O_3(s)}$$?

Accepted Answer

3

Study Guidance for Chemistry 1305 Exam (Chapters 4–7)

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