اسئلة عشوائية لتشابتر الثاني

Question 1

All atoms of a given element are…

Answer 1

Identical, same size mass and chemical properties

Question 2

Atoms are electrically…

Answer 2

Neutral

Question 3

Metals

Answer 3

• good conductors of heat and electricity
• occupy most of the table

Question 4

Nonmetal

Answer 4

• not good conductors of heat and electricity
• only 17 elements

Question 5

Metalloid

Answer 5

• Intermediate between metals and nonmetals
• only 8 element

Question 6

The formula is usually the same as the…

Answer 6

Empirical formula

Question 7

The sum of the charges on the cation and anion must equal

Answer 7

Zero

Question 8

The most reactive metals and most reactive nonmetals form

Answer 8

Ionic compound

Question 9

Ionic compounds rule

Answer 9

– Often a metal + nonmetal
– Anion (nonmetal), add “-ide” to element name

Question 10

If transition metals can form more than one type of cations we use

Answer 10

-ic

Question 11

If transition metals can form more than one type of cations we use … for lower charge

Answer 11

-ous

Question 12

If transition metals can form more than one type of cations we use… for higher charge

Answer 12

-ic

Question 13

Molecular compounds are usually composed of

Answer 13

Nonmetallic elements

Question 14

Many molecular compounds are

Answer 14

Binary compounds

Question 15

Naming binary molecular compounds is similar to naming

Answer 15

binary ionic compounds

Question 16

The second element in MOLECULAR COMPOUNDS get named by adding ……. To the end

Answer 16

-ide

Question 17

Mono- means

Answer 17

1

Question 18

Di- means

Answer 18

2

Question 19

Tri- means

Answer 19

3

Question 20

For oxides the ending “a” in the prefix is sometimes

Answer 20

Omitted

Question 21

The prefix “mono-” may be omitted for

Answer 21

the first element.

Question 22

The two types of compounds

Answer 22

Ionic and molecular

Question 23

The cation is either

Answer 23

Metal or NH4^+

Question 24

The molecular compound is

Answer 24

Binary compounds of nonmetals

Question 25

When cation has only ONE charge

Answer 25

• Alkali metal cation
• Alkaline earth metal cation

Question 26

When cation has MORE than one charge

Answer 26

Other metal cation

Question 27

Anions whose names end in “-ide” forms acid with a

Answer 27

“Hydro-“ prefix and an “-ic” ending

Question 28

Hydrogen + element + oxygen

Answer 28

Oxoacids

Question 29

Two or more oxoacids have the same central atom but a different number of O atoms; the following rules to name these compounds.

Answer 29

1. Additional of one O atom to the “-ic” acid
2. Removal of one O atom from the “-ic” acid
3. Removal of two O atoms from the “-ic” acid

Question 30

The rules for naming oxoanions, anions of oxoacids, are as follows:

Answer 30

1. When all the H ions are removed from the “-ic” acid, the anion’s name ends with “-ate.”
2. When all the H ions are removed from the “-ous” acid, the anion’s name ends with “-ite.”
3. The names of anions in which one or more but not all the hydrogen ions have been removed must indicate the number of H ions present.

Question 31

parent acid for all halogenic acids is:

Answer 31

HxO3

Question 32

The removal of ALL H+ ions from oxoacid is

Answer 32

Oxoanion

Question 33

Elements + OH

Answer 33

Base

Question 34

H2O is

Answer 34

Water

Question 35

NaHCO3 is

Answer 35

Baking soda