Chemistry Chapter 9

Question 1

The metals Groups 1A, 2A, and 3A

Accepted Answer

Lose electrons when they form ions.

Question 2

When naming Transition Metals, how do you indicate the charge of the metal?

Accepted Answer

Roman Numerals

Question 3

Which of the following is a polyatomic ion?

Accepted Answer

hydroxide

Question 4

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

Accepted Answer

aluminum

Question 5

What is the formula for sodium oxide?

Accepted Answer

Na2O

Question 6

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

Accepted Answer

bi-

Question 7

Subscripts should be written in . . .

Accepted Answer

the lowest whole-number ratio

Question 8

What is a valence electron?

Accepted Answer

An electron on the outermost ring.

Question 9

What is true about the naming convention for polyatomic ions?

Accepted Answer

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

Question 10

A Polyatomic Ion Is

Accepted Answer

a positively or negatively charged, covalently bonded group of atoms.

Question 11

What are binary ionic compounds composed of?

Accepted Answer

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

Question 12

How many elements is a binary compound composed of?

Accepted Answer

2

Question 13

In a binary compound, place the _____ name first.

Accepted Answer

cation

Question 14

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

Accepted Answer

subtracting . . . 8

Question 15

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

Accepted Answer

two

Question 16

When naming a transition metal, the roman numeral tells

Accepted Answer

how many valence electrons it loses

Question 17

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

Accepted Answer

It is the number of electrons lost.

Question 18

Group 7A (17) are ...

Accepted Answer

halogens

Question 19

What is the charge of a magnesium ion?

Accepted Answer

2+

Question 20

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

Accepted Answer

-ide

Question 21

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

Accepted Answer

written in the formula

Question 22

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

Accepted Answer

group number

Question 23

What is the charge of a nitrogen ion?

Accepted Answer

3-

Question 24

The charges of the ions formed by nonmetals in Groups 6A and 7A respectively are

Accepted Answer

2-, 1-

Question 25

How many valence electrons are in phosphorous

Accepted Answer

5

Question 26

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 27

A polyatomic ion is composed of _____.

Accepted Answer

more than one atom

Question 28

How can you determine the charges of monatomic ions?

Accepted Answer

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

Question 29

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 30

When group 1A forms an ion they

Accepted Answer

lose one electron

Question 31

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

Accepted Answer

hydrogen

Question 32

A binary compound is composed of ____________.

Accepted Answer

two elements

Question 33

Aluminum is a group 3A metal. Which ion does it form?

Accepted Answer

Al3+

Question 34

Use the Criss Cross method to write the formula for Aluminum Sulfide.

Accepted Answer

Al2S3

Question 35

How many ions are in polyatomic ions?

Accepted Answer

more than one

Question 36

You only use criss cross method with_________.

Accepted Answer

ionic bonds

Question 37

What prefix is used for 2 atoms in a compound?

Accepted Answer

di

Question 38

What is the formula for the compound Sodium Nitrate

Accepted Answer

NaNO3, A bucket of cats

Question 39

The polyatomic ion for Chlorite is...

Accepted Answer

ClO2-

Question 40

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

Accepted Answer

iron

Question 41

A base is a(n) ________ compound.

Accepted Answer

ionic

Question 42

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

Accepted Answer

oxygen

Question 43

Ionic Bond

Accepted Answer

M+NM

Question 44

The following is an example of a polyatomic ion

Accepted Answer

sulfite

Question 45

In a binary compound, which comes firts?

Accepted Answer

the cation's name

Question 46

What is a polyatomic ion?

Accepted Answer

covalently bonded atoms that have electrical charge (+ or -)

Question 47

What is this method called?

Accepted Answer

criss cross method

Question 48

An anion of chlorine or other group 7A element

Accepted Answer

Halide ion

Question 49

Do you know the steps to wrtie the chemical formula from its name?

Accepted Answer

No, Yes

Question 50

What is the definition of Polyatomic Ion?

Accepted Answer

An ion made of more than one atom

Question 51

which is a polyatomic ion?

Accepted Answer

CO3

Question 52

Why do you need a naming system?

Accepted Answer

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

Question 53

What is the correct name for the NO₃¹⁻ ion?

Accepted Answer

nitrate

Question 54

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

Accepted Answer

Roman Numeral

Question 55

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

Accepted Answer

two . . . ionic or molecular

Chemistry Chapter 9

Questions 55

Chemistry Chapter 9

Questions 55