Chemistry Chapter 9

Question 1

In general, what type of compound is a base?

Accepted Answer

ionic

Question 2

A polyatomic ion is composed of _____.

Accepted Answer

more than one atom

Question 3

How do you distinguish between metallic elements that might form more than one ion.

Accepted Answer

A Roman numeral is part of the name of the cation.

Question 4

How many elements is a binary compound composed of? What are they?

Accepted Answer

two . . . ionic or molecular

Question 5

How is the charge determined of the cations of many transition metal ions?

Accepted Answer

it's determined by the number of electrons lost

Question 6

Which law is consistent with Dalton's atomic theory?

Accepted Answer

the law of definite proportions

Question 7

When naming a binary molecular compound, write the names of the elements in the order _____.

Accepted Answer

written in the formula

Question 8

Subscripts should be written in . . .

Accepted Answer

the lowest whole-number ratio

Question 9

What is true about the naming convention for polyatomic ions?

Accepted Answer

“-ide” indicates one less oxygen atom than “-ate” in the ion

Question 10

In which of the following ways is a polyatomic ion unlike a monatomic ion?

Accepted Answer

A polyatomic ion is composed of more than one atom.

Question 11

What is the charge of a nitrogen ion?

Accepted Answer

3-

Question 12

An acid produces _____ when _________________.

Accepted Answer

hydrogen ions . . . dissolved in water

Question 13

All anions that end with -ite or -ate contain _____.

Accepted Answer

oxygen

Question 14

Why do you need a naming system?

Accepted Answer

Chemistry is my favorite class!, to distinguish between two compounds

Question 15

True or False. A binary compound is made up of three elements.

Accepted Answer

Trick question! It's false!

Question 16

In the process for making steel, what is extracted from hematite?

Accepted Answer

iron

Question 17

What is the formula for phosphoric acid?

Accepted Answer

H3PO4

Question 18

Cinnabar is _____.

Accepted Answer

mercury sulfide

Question 19

What is the first step in naming the binary molecular compound?

Accepted Answer

write the element names in the order written in the formula

Question 20

Which chemist worked with other chemists to develop a method for naming chemical compounds?

Accepted Answer

Antoine-Laurent Lavoisier

Question 21

In a binary compound, which comes firts?

Accepted Answer

the cation's name

Question 22

If a transition metal forms more than one ion, a ______ must be included in the cation name.

Accepted Answer

Roman Numeral

Question 23

How can you determine the charges of monatomic ions?

Accepted Answer

It is the number of e- gained (- charge) or lost (+ charge).

Question 24

How do you determine the charges of the cations of many transition metal ions?

Accepted Answer

It is the number of electrons lost.

Question 25

An acid is a compound that contains one or more atoms of which element?

Accepted Answer

hydrogen

Question 26

What is the charge of a magnesium ion?

Accepted Answer

2+

Question 27

An acid is a compound that contains one or more ____ atoms.

Accepted Answer

hydrogen

Question 28

Which two groups of the representative elements in the Periodic Table do not usually form ions?

Accepted Answer

Groups 4A and 8A

Question 29

What prefix is used for 2 atoms in a compound?

Accepted Answer

di

Question 30

What is the name of the compound PCl3?

Accepted Answer

phosphorus trichloride

Question 31

In a binary compound, place the _____ name first.

Accepted Answer

cation

Question 32

Which of the following is the only common group 3A element?

Accepted Answer

aluminum

Question 33

How many elements is a binary compound composed of?

Accepted Answer

2

Question 34

What should be considered when naming an acid?

Accepted Answer

they consist of an anion combined with hydrogen ion(s)

Question 35

Which of the following is not a prefix used in naming binary molecular compounds?

Accepted Answer

bi-

Question 36

How many ions are in polyatomic ions?

Accepted Answer

more than one

Question 37

How can you determine the charges of monatomic ions?

Accepted Answer

it's the result of the gain or loss of valence electrons

Question 38

What is the first step in writing the formula for a base?

Accepted Answer

write the symbol for the metal cation

Question 39

The prefix di- would be used to indicate the presence of how many atoms?

Accepted Answer

two

Question 40

A binary compound is composed of ____________.

Accepted Answer

two elements

Question 41

When metals in Groups 1A-3A lose e-, they acquire positive charges equal to their _________.

Accepted Answer

group number

Question 42

What are binary ionic compounds composed of?

Accepted Answer

two ions, one from a metal and one from a nonmetal

Question 43

What is the name of the system that is used to name the transition metal ions?

Accepted Answer

Stock System

Question 44

Who determined the composition of many compounds to show how chemical compounds form?

Accepted Answer

Antoine Laurent Lavoisier

Question 45

A base is a(n) ________ compound.

Accepted Answer

ionic

Question 46

The charge of any ion of a group A nonmetal is determined by _______ the group number from ___.

Accepted Answer

subtracting . . . 8

Question 47

What is the formula for ethanoic acid?

Accepted Answer

HC2H3O2

Question 48

To write the formula for an acid, use the rule for writing the name of the acid in ______.

Accepted Answer

reverse

Question 49

The charges of the cations of many transitional metal ions must be determined _____.

Accepted Answer

from the number of electrons lost

Question 50

Potassium carbonate (K2CO3) is also known as _____.

Accepted Answer

potash

Question 51

When naming binary ionic compounds, the name of the second element ends with what suffix?

Accepted Answer

-ide

Chemistry Chapter 9

Questions 51

Chemistry Chapter 9

Questions 51