Chemistry f321 quiz

Question

What did John Dalton NOT predict about the atom?

Answer 1

Atoms are tiny particles that make up elements

Answer 2

Atoms cannot be divided

Answer 3

Atoms have negative electrons which move around in a 'sea' of electrons

Answer 4

All atoms of a given element are the same

Answer 5

Working out the number of atoms in a mole

Answer 6

Discovering that cathode rays are made up of a stream of particles called electrons

Answer 7

Finding a law allowing people to indirectly determine the enthalpy change of a reaction

Answer 8

Shooting JFK

Answer 9

Rutherford

Answer 10

The positive charge and most of the mass of the atom are concentrated at the centre, in the nucleus Negative electrons orbit the nucleus Electrons follow only certain paths Most of the atom is made up of empty space

Answer 11

The atom is made up of negative electrons in a 'sea' of positive charge

Answer 12

Atoms cannot be divided Atoms are tiny particles that make up elements

Answer 13

The overall charge of an atom is 0 electrons orbit the nucleus Most of the atom is empty space The positive charge and most of the mass of an atom is centred in the middle, in the nucleus

Answer 14

atoms of the same element with different numbers of neutrons

Answer 15

atoms of the same elements with different numbers of protons

Answer 16

atoms with different mass numbers

Answer 17

atoms with the same charges

Answer 18

6.02 x 10 to the power of 24

Answer 19

2.06 x 10 to the power of 13

Answer 20

6.02 x 10 to the power of 23

Answer 21

6.03 x 10 to the power of 24

Answer 22

the weighted mean mass of an atom compared to one-twelfth the mass of an atom of carbon-12

Answer 23

the weighted mean mass of an atom compared to twelve grams of carbon-12

Answer 24

the mass of an isotope of an element compared to twelve grams of carbon -12

Answer 25

the mass of an isotope of an element compare to one -twelfth the mass of one atom of carbon-12

Answer 26

the weighted mean mass of an atom of an element compared to one-twelfth the mass of an atom of carbon-12

Answer 27

the weighted mean mass of an atom compared to 12 grams of carbon-12

Answer 28

the mass of an atom compared to one -twelfth the mass of an atom of carbon-12

Answer 29

the mass of an isotope of an element compared to one -twelfth the mass of one atom of carbon 12

Answer 30

the amount of any substance containing as many particles as there are carbon atoms in exactly 12 grams of the crabon-12 isotope

Answer 31

the mass of 6.02 x 10 to the power of 23 atoms

Answer 32

a small mammal adapted to a subterranean lifestyle

Answer 33

the number of atoms per mole in a compound

Answer 34

mr divided by the mass

Answer 35

mass divided by the mr

Answer 36

mass times the mr

Answer 37

mr squared minus the mass

Answer 38

list the elements, the mr, then divide by the smallest

Answer 39

list the elements, the experimental masses, number of moles, divide mass by moles, divide by smallest

Answer 40

list the elements, the experimental masses, mr, divide mass by mr, divide by smallest

Answer 41

list all the elements, experimental masses, mr, divide by smallest

Answer 42

there are 6.02 times 10 to the power of 23 molecules in a mole

Answer 43

the mr is calculated by adding the ar of all the elements present in the compound

Answer 44

the volume of gas stays the same regardless of RTP

Answer 45

equal volumes of gases at the same temperature and pressure contain equal numbers of molecules

Answer 46

volume (dm cubed) divided by 24.0

Answer 47

volume (cm cubed) divided by 24.0

Answer 48

Volume (dm cubed) divided by 23.0

Answer 49

volume times mr divided by 24.0

Answer 50

volume (cm cubed) times concentration

Answer 51

volume (dm cubed) divided by concentration

Answer 52

volume (dm cubed) times concentration

Answer 53

volume (dm cubed) times mr

Answer 54

A substance with a pH of less than 7

Answer 55

A substance the neutralises an alkali

Answer 56

A proton donator

Answer 57

A dehydrated salt

Answer 58

A soluble base

Answer 59

A base that dissolves in water to release OH minus ions

Answer 60

A substance that is above pH 7

Answer 61

The opposite to an acid

Answer 62

A proton acceptor

Answer 63

A soluble alkali

Answer 64

A substance that is pH7

Answer 65

A substance that is above pH 7

Answer 66

Formed when an acid and an alkali neutralise each other

Answer 67

Formed when the H+ ion in an acid is replaced by a metal ion or other positive ion

Answer 68

A popular seasoning

Answer 69

A mildly acidic substance (pH5-6) that is formed in the presence of an acid catalyst

Answer 70

Salt + hydrogen + water

Answer 71

Salt + hydrogen + carbon dioxide

Answer 72

Salt + hydrogen

Answer 73

Salt + carbon dioxide + water

Answer 74

Salt + hydrogen

Answer 75

Salt + water

Answer 76

Salt + oxygen + water

Answer 77

Salt + carbon dioxide + water

Answer 78

Salt + water

Answer 79

Salt + hydrogen + metal oxide

Answer 80

Metal oxide + hydrogen

Answer 81

Salt + oxygen + water

Answer 82

a) a crystalline compound containing water molecules, b) and crystalline compound containing no water molecules

Answer 83

a) an aqueous solution, b) a liquid solution

Answer 84

a) a crystalline compound containing water molecules, b) a substance that contains no water molecules

Answer 85

a) a crystalline structure, b) a simple covalent structure

Answer 86

the water molecules that form an essential part of the crystalline structure of a substance

Answer 87

the water needed in order to hydrate a substance

Answer 88

water molecules that are able to form a crystalline structure under extreme conditions

Answer 89

the crystalline structure of non-metals

Answer 90

Reductation

Answer 91

Inheritance

Answer 92

a reagent that oxidises another species

Answer 93

a reagent that is reduced in a reaction

Answer 94

a reagent that reduces another species

Answer 95

an atom that has been reduced

Answer 96

A reaction where the same element is both reduced and oxidised

Answer 97

A reaction which is both endo- and exothermic

Answer 98

A reaction that has a total enthalpy change of 0

Answer 99

A reaction in which both reduction and oxidation take place

Answer 100

a reagent that oxidises another species

Answer 101

a species that has been oxidised

Answer 102

a reagent that accelerates the rate of reduction

Answer 103

a reagent that release energy when exposed to oxygen

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Chemistry f321 quiz

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	Criado por rosieoj2 mais de 9 anos atrás