definition

Question 1

period

Answer 1

horizontal rows of the periodic table of elements

Question 2

groups

Answer 2

a column in the periodic table of elements

Question 3

Ionic bonds

Answer 3

Positively charged ions are formed when a metal atom donates its valence electrons in order to achieve a stable octet or duplet electron arrangements

Question 4

covalent bonds

Answer 4

Non-metal element atom combines together by sharing electrons in order to achieve a stable duplet or octet electron arrangements

Question 5

hydrogen bonds

Answer 5

Attractions forces between hydrogen atoms that have bonded W an atom of high electronegativity

Question 6

dative bond//coordinate bond

Answer 6

The type of covalent bond where the electron pair that shares comes from one atom only

Question 7

metallic bond

Answer 7

electrostatic force of attraction between sea of electrons and the positively charged metal ion

Question 8

delocalised electrons

Answer 8

Electrons that move freely and are not owned by any atom or ion

Question 9

Standard electrode potential value

Answer 9

Potential diff produced when an equilibrium is established between metal and aqueous solution containing metal ion

Question 10

electrolytes

Answer 10

Substance that can conduct electricity in an aqueous solution or molten state but not in solid state
Undergoes chemical changes when electricity passed

Question 11

Non-electrolyte

Answer 11

Consists of molecules
Do not have free movingbioje

Question 12

Melting point

Answer 12

The temperature at which a solid change into a liquid at the particular pressure

Question 13

Freezing point

Answer 13

What’s the temperature at which a liquid change into a solid at the particular pressure

Question 14

Super cooling

Answer 14

A condition in which the temperature of a cooling liquid drop below its normal freezing point without the appearance of a solid

Question 15

Nucleon number

Answer 15

The total number of proton and neutron in the nucleus of an atom

Question 16

Isotopes

Answer 16

Atoms of the same elements I have the same proton number but different nucleon number

Question 17

Relative atomic mass

Answer 17

Element is the average month of an atom of the element when compared to 1/12 of the mass of an atom of carbon C-12

Question 18

Empirical formula

Answer 18

A chemical formula that shows the simplest whole number ratio of atom of each element in the compound

Question 19

Empirical formula

Answer 19

A chemical formula that shows the simplest whole number ratio of atom of each element in the compound

Question 20

Molecular formula

Answer 20

A chemical formula that shows the actual number of an atom of element that combines to form the compound

Question 21

Hydrogen bone

Answer 21

Attraction force between hydrogen atom that has bonded with an atom of a high electron negativity

Question 22

Hydrogen bone

Answer 22

Attraction force between hydrogen atom that has bonded with an atom of a high electron negativity

Question 23

dative Bond

Answer 23

A type of covalent bond with electron pair that is share comes from one atom only

Question 24

Basicity

Answer 24

The number of moles of hydrogen ion that can be produced by one mole of acid when ionized in water

Question 25

Basicity

Answer 25

The number of moles of hydrogen ion that can be produced by one mole of acid when ionized in water

Question 26

Acid

Answer 26

A chemical substander ionized in water to produce hydrogen ion

Question 27

Acid

Answer 27

A chemical substander ionized in water to produce hydrogen ion

Question 28

Base

Answer 28

Chemical substand that react with acid to form salt and water only

Question 29

Base

Answer 29

Chemical substand that react with acid to form salt and water only

Question 30

Alkali

Answer 30

Chemical substander analyzing water to produce hydroxide ion

Question 31

End point of neutralization

Answer 31

The poem at which the acid and that completely naturalized the alkali

Question 32

Salt

Answer 32

An ionic compound form when the hydrogen ion from an acid is replaced by a metal iron

Question 33

Rate of reaction

Answer 33

The change in the amount of reactant of product per unit time

Question 34

Average rate of reaction

Answer 34

The rate of reaction over an interval time

Question 35

Redox reaction

Answer 35

Chemical reaction in which oxidation and reduction occurs at the same time

Question 36

Instantaneous rate of reaction

Answer 36

The rate of reaction and specific time

Question 37

Alloy

Answer 37

Mixture of two or more elements with a certain fixed composition in which the major component is metal

Question 38

Oxidizing agent

Answer 38

Substand the iodized other substance and is reduced in a redox reaction

Question 39

Reducing agent

Answer 39

Substance that reduce other substance and its oxidized in a redox reaction

Question 40

Electrolysis

Answer 40

A process whereby compound in molten state or an aqueous solution decompose into the constituent element by passing electricity through them

Question 41

Electrolyte

Answer 41

Substance that can conduct electricity in a aqueous solution or molten state but not in solid state and undergoes chemical change

Question 42

Non-electrolyte

Answer 42

Substance that cannot conduct electricity in all states

Question 43

Corrosion of metal

Answer 43

Redox reaction where the metal is I oxidized exp spontaneously when the metal atom release electron to form metal ion

Question 44

Hydrocarbon

Answer 44

Organic compound containing only hydrogen and carbon

Question 45

Non-hydrocarbon

Answer 45

Compound containing carbon and hydrogen and other elements such as oxygen nitrogen phosphorus or halogen

Question 46

Saturated hydrocarbon

Answer 46

Containing only single Bond between carbon atom

Question 47

Unsaturated hydrocarbon

Answer 47

Hydrocarbon containing at least one double bond or triple Bond between carbon at them

Question 48

Isomerism

Answer 48

A phenomenon where a compound has the same molecular formula but with two or more difference structural formula

Question 49

Isomer

Answer 49

Molecule that have the same molecular formula but different structural formula

Question 50

Isomer

Answer 50

Molecule that have the same molecular formula but different structural formula

Question 51

melting point

Answer 51

Temperature when the substance turn from solid to liquid at a certain pressure