C4

Question 1

METALS REACT WITH OXYGEN TO PRODUCE _____?

Answer 1

METAL OXIDES

Question 2

WHAT IS OXIDATION IN TERMS OF ELECTRONS?

Answer 2

OXIDATION IS THE LOSS OF ELECTRONS AND GAIN OF OXYGEN

Question 3

WHAT IS REDUCTION IN TERMS OF ELECTRONS?

Answer 3

REDUCTION IS THE GAIN OF ELECTRONS AND LOSS OF OXYGEN

Question 4

WHAT DO METAL ATOMS FORM WHEN METALS REACT WITH OTHER SUBSTANCES?

Answer 4

POSITIVE IONS

Question 5

REACTIONS OF METALS WITH WATER AND ACIDS ARE LIMITED TO ___ TEMPERATURE?

Answer 5

ROOM

Question 6

METALS SUCH AS GOLD ARE FOUND IN THE EARTH BECAUSE THEY ARE ____?

Answer 6

UNREACTIVE

Question 7

METALS CAN BE EXTRACTED FROM THEIR OXIDES BECAUSE? THIS IS CALLED?

Answer 7

THEY ARE LESS REACTIVE THAN CARBON. REDUCTION WITH CARBON

Question 8

METAL + ACID –>

Answer 8

SALT + WATER

Question 9

ACID + ALKALI –>

Answer 9

WATER + SALT

Question 10

BASE + ACID –>

Answer 10

WATER + SALT

Question 11

ACIDS ARE NEUTRALISED BY ____?

Answer 11

ALKALIS

Question 12

ALKALIS ARE NEUTRALISED BY ____?

Answer 12

ACIDS

Question 13

ACIDS + METAL CARBONATE –>

Answer 13

SALT + WATER + CARBON DIOXIDE

Question 14

HYDROCHLORIC ACID PRODUCES WHAT SALT?

Answer 14

CHLORIDE

Question 15

NITRIC ACID PRODUCES WHAT SALT?

Answer 15

NITRATE

Question 16

SULPHURIC ACID PRODUCES WHAT SALT?

Answer 16

SULFATE

Question 17

NAME 4 INSOLUBLE SUBSTANCES

Answer 17

METALS
METAL OXIDES
HYDROXIDES
CARBONATES

Question 18

SALT SOLUTIONS ARE ___ TO PRODUCE _____ _____?

Answer 18

CRYSTALLISED

SOLID SALTS

Question 19

IN AQUEOUS SOLUTIONS ACIDS PRODUCE ________?

Answer 19

HYDROGEN IONS

H+

Question 20

IN AQUEOUS SOLUTIONS ALKALIS PRODUCE ________?

Answer 20

HYDROXIDE IONS

OH-

Question 21

pH SCALE RANGES FROM __ TO__?

Answer 21

0 TO 14

Question 22

DESCRIBE THE pH SCALE

Answer 22

A MEASURE OF A SOLUTION’S ACIDITY OR ALKALINITY

Question 23

HOW IS pH SCALE MEASURED?

Answer 23

BY UNIVERSAL INDICATOR OR pH PROBE

Question 24

TITRATION DEFINITION

Answer 24

WHERE A SOLUTION OF AN KNOWN CONCENTRATION IS USED TO FIND THE CONCENTRATION OF AN UNKNOWN SOLUTION

Question 25

IN AN AQUEOUS SOLUTION A STRONG ACID IS ____ IONISED

Answer 25

COMPLETELY IONISED

Question 26

IN AN AQUEOUS SOLUTION A WEAK ACID IS ____ IONISED

Answer 26

PARTIALLY IONISED

Question 27

NAME 3 WEAK ACIDS

Answer 27

ETHNIC ACID CITRIC ACID CARBONIC ACID

Question 28

NAME 3 STRONG ACIDS

Answer 28

SULPHURIC ACID HYDROCHLORIC ACID NITRIC ACID

Question 29

THE STRONGER AN ACID THE ____ THE pH

Answer 29

LOWER

Question 30

AS THE pH DECREASES BY 1 UNIT, THE HYDROGEN IONS CONCENTRATION OF SOLUTION DECREASES BY __?

Answer 30

10

Question 31

IN ELECTROLYSIS WHAT TYPE OF COMPOUND IS USED?

Answer 31

IONIC COMPOUND

Question 32

IN ELECTROLYSIS THE SOLID IONIC COPMPUND MUST BE ______ OR ______ __ _____

Answer 32

MELTED | DISSOLVED IN WATER

Question 33

WHY MUST THE IONIC COMPOUND BE MELTED OR DISSOLVED IN WATER?

Answer 33

THE IONS ARE FREE TO MOVE ABOUT WITHIN THE LIQUID OR SOLUTION

Question 34

LIQUIDS ABLE TO CONDUCT ELECTRICITY WITH IONS FREE TO MOVE ARE CALLED?

Answer 34

ELECTROLYTES

Question 35

AN _____ CURRENT IS PASSED THROUGH THE ELECTROLYTES

Answer 35

ELECTRIC CURRENT

Question 36

THE ELECTRIC CURRENT PASSED THROUGH THE ELECTROLYTES CAUSES ___ TO MOVE TO THE ________

Answer 36

IONS | ELECTRODES

Question 37

POSITIVELY CHARGED IONS MOVE TO THE _____

Answer 37

NEGATIVE ELECTRODE

Question 38

NEGATIVELY CHARGED IONS MOVE TO THE ______

Answer 38

POSITIVE ELECTRODE

Question 39

POSITIVELY CHARGE ION

Answer 39

CATION

Question 40

NEGATIVELY CHARGED ION

Answer 40

ANION

Question 41

POSITIVE ELECTRODE

Answer 41

ANODE

Question 42

NEGATIVE ELECTRODE

Answer 42

CATHODE

Question 43

THE METAL IS PRODUCED AT WHAT ELECTRODE

Answer 43

CATHODE

Question 44

THE NON-METAL IS PRODUCED AT WHAT ELECTRODE

Answer 44

ANODE

Question 45

AT THE CATHODE WHAT IONS GAIN ELECTRONS

Answer 45

POSITIVELY CHARGED IONS

Question 46

AT THE ANODE WHAT IONS LOSS ELECTRONS

Answer 46

NEGATIVELY CHARGED IONS

Question 47

WHEN CATIONS GAIN ELECTRONS THIS IS CALLED

Answer 47

REDUCTION

Question 48

WHEN ANIONS LOSE ELECTRONS THIS IS CALLED

Answer 48

OXIDATION