Y11 Chemistry Test 1
Number | Question | Answer | Topic |
1 | What is an atom? | The samllest particle of an element that can exist on its own in a stable environment | Atomic Structure |
2 | What is the relative mass of a proton? | 1 | Atomic Structure |
3 | What is the relative mass of a neutron? | 1 | Atomic Structure |
4 | What is the relative mass of an electron? | 1/1840 | Atomic Structure |
5 | What is the relative charge of a proton? | 1 | Atomic Structure |
6 | What is the relative charge of a neutron? | 0 | Atomic Structure |
7 | What is the relative charge of an electron? | -1 | Atomic Structure |
8 | Where are the electrons found? | the shells | Atomic Structure |
9 | Where are the protons and neutrons found? | the nucleus | Atomic Structure |
10 | What is the atomic number? | the number of protons in the nucleus of an atom | Atomic Structure |
11 | What is the mass number? | the number of protons and neutrons in the nucleus of an atom | Atomic Structure |
12 | Why are atoms electrically neutral? | They have the same number of positive protons as negative electrons | Atomic Structure |
13 | How many electrons can be held in the first shell? | 2 | Atomic Structure |
14 | How many electrons can be held in the second shell? | 8 | Atomic Structure |
15 | How many electrons can be held in the third shell? | 8 | Atomic Structure |
16 | What is meant by the term isotopes? | Atoms of the same element wit the same number of protons but a different number of neutrons | Atomic Structure |
17 | In terms of particles, how are isotopes the same? | They have the same number of protons and electrons | Atomic Structure |
18 | In terms of particles, how are isotopes different? | They have a different number of neutrons | Atomic Structure |
19 | Why do isotopes react the same way? | They have the same number of electrons in the outer shell | Atomic Structure |
20 | What is the relative atomic mass? | A weighted mean of the mass numbers | Atomic Structure |
21 | What is the size of the radius of an atom? | 0.1nm | Atomic Structure |
22 | To convert the radius of an atom to the radius of a nucleus you must? | Divide by 10,000 | Atomic Structure |
23 | 1 x 10⁻9m is …. | 1 nanometre | Atomic Structure |
24 | What is an ion? | A charged particle formed when an atom loses or gains electrons | Atomic Structure |
25 | A negative ion is called? | Anion | Atomic Structure |
26 | A positive ion is called? | Cation | Atomic Structure |
27 | An atom that loses electrons will get a _____ charge | positive | Atomic Structure |
28 | An atom that gains electrons will get a _____ charge | negative | Atomic Structure |
29 | If 1 electron is gained by an atom, the charge is? | 1- | Atomic Structure |
30 | If 2 electrons are gained, the charge is ? | 2- | Atomic Structure |
31 | If 3 electrons are gained by an atom, the charge is? | 3- | Atomic Structure |
32 | If 1 electron is lost, the charge is? | 1+ | Atomic Structure |
33 | If 2 electrons are lost, the charge is? | 2+ | Atomic Structure |
34 | What is the EC of an atom of sodium? | 2,8,1 | Atomic Structure |
35 | What is the EC of an atom of alumnium? | 2,8,3 | Atomic Structure |
36 | What is the EC of an atom of oxygen? | 2,6 | Atomic Structure |
37 | What is the EC of an atom of lithium? | 2,1 | Atomic Structure |
38 | What is the EC of an atom of phosphorus? | 2,8,5 | Atomic Structure |
39 | What is the EC of an atom of neon? | 2,8 | Atomic Structure |
40 | What is the EC of an atom of potassium? | 2,8,8,1 | Atomic Structure |
41 | What is the EC of a potassium ion? | 2, 8, 8 | Atomic Structure |
42 | What is the EC of a lithium ion? | 2 | Atomic Structure |
43 | What is the EC of an oxide ion? | 2, 8 | Atomic Structure |
44 | If 3 electrons are lost, the charge is? | 3+ | Atomic Structure |
45 | Atoms bond to get a? | Full outer shell | Atomic Structure |
46 | What group of elements have a full outer shell? | The Noble Gases | Atomic Structure |
47 | What scientist is responible for developing the modern Periodic Table | Mendeleev | The Periodic Table |
48 | Mendeleev arranged the elements in order of? | Atomic mass | The Periodic Table |
49 | The modern Periodic Table is arranged in order or? | Atomic number | The Periodic Table |
50 | Mendeleev arrange the elements in rows called? | Periods | The Periodic Table |
51 | Mendeleev arranged the elements in columns called? | Groups | The Periodic Table |
52 | What are elements that display metallic and non-metallic properties called? | Semi-metals | The Periodic Table |
53 | What group of unreactive non-metals have been discovered since Mendeleevs version? | Noble Gases | The Periodic Table |
54 | Group 1 is known as? | The alkali metals | The Periodic Table |
55 | Group 2 is known as? | The alkaline-earth metals | The Periodic Table |
56 | The metals between group 2 and 3 are known as? | The transition metals | The Periodic Table |
57 | Group 7 is known as? | The halogens | The Periodic Table |
58 | Group 0 is known as? | The Noble Gases | The Periodic Table |
59 | What is a pure substance? | A single element or compound not mixed with any other substance | Separating Techniques |
60 | What is meant by the term melting point? | The temperature at which a solid changes into a liquid | Separating Techniques |
61 | What is meant by the term boiling point? | The temperature at whicha liquid changes into a gas | Separating Techniques |
62 | What type of substance has a sharp, specific melting and boiling point? | Pure substances | Separating Techniques |
63 | What type of substance melts or boils over a range of temperatures? | Mixtures | Separating Techniques |
64 | What effect does an impurity have on the boiling point of a substance? | Increases it | Separating Techniques |
65 | What effect does an impurity have on the melting point of a substance? | Decreases it | Separating Techniques |
66 | What is occuring at part 2 on the graph? | melting | Separating Techniques |
67 | What is occuring at part 4 on the graph? | boiling | Separating Techniques |
68 | What state is the substance in at part 3 of the graph? | liquid | Separating Techniques |
69 | What is a formulation? | A mixture of several different substances in carefully measured quantities to ensure the product has the required properties | Separating Techniques |
70 | What are 3 examples of formulations? | alloys, medicine, fertilisers | Separating Techniques |
71 | What is a mixture? | Two or more substance mixed together | Separating Techniques |
72 | What is a solute? | The dubstance that dissolves in a solvent | Separating Techniques |
73 | What is a solvent? | The liquid in which a solute dissolves | Separating Techniques |
74 | What is a solution? | A solute dissolved in a solvent | Separating Techniques |
75 | What is a soluble substance? | One which will dissolve in water | Separating Techniques |
76 | What is an insoluble substance? | One which does not dissolve in water | Separating Techniques |
77 | What is the filtrate? | The liquid that passes through the filter paper during filtration | Separating Techniques |
78 | What is the residue? | The solid that remains on the filter paper | Separating Techniques |
79 | What does filtration separate? | An insoluble solid from a liquid | Separating Techniques |
80 | What is meant by the term evaporation? | The change of state from a liquid to a gase when heated | Separating Techniques |
81 | When forming crystals, should all the water be evaporated? | No | Separating Techniques |
82 | What is a saturated solution? | One in which no more solid can dissolve at that temperature | Separating Techniques |
83 | When a saturated solution is cooled, why do crystals form? | As the solubility has decreased, some solid crystallises out of solution | Separating Techniques |
84 | What does crystallisation/evaporation separate? | a dissolved solute from a solution | Separating Techniques |
85 | What is meant by the term condensation? | The change of state from a gas to a liquid when cooled | Separating Techniques |
86 | What does simple distillation separate? | A solvent from a solution | Separating Techniques |
87 | Why are anti-bumping granules added to the flask? | To promote smooth boiling | Separating Techniques |
88 | What is the name of liquid that is cooled from the vapour and collected during distillation? | Distillate | Separating Techniques |
89 | What part of simple distillation condenses the vapour? | the liebig condenser | Separating Techniques |
90 | What does fractional distillation separate? | Miscible liquids with different boiling points | Separating Techniques |
91 | What does miscible mean? | liquids that mix together and form one layer | Separating Techniques |
92 | What does immiscible mean? | Liquids that do not mix together and form two layers | Separating Techniques |
93 | What is the purpose of the fractionating column? | provides better separation of liquids | Separating Techniques |
94 | In chromatography, what is the name of the pencil line when spots are added? | the base line | Separating Techniques |
95 | In chromatography, what describes how far the solvent has travelled? | the solvent front | Separating Techniques |
96 | How many spots are found in a chromatogram of a pure substance? | one | Separating Techniques |
97 | In chromatography, a spot that travels further up the page is… | more soluble in the solvent and has weaker attraction to the paper | Separating Techniques |
98 | In chromatography, a spot that doesn't travel far up the page is… | less soluble in the solvent and has stronger attraction to the paper | Separating Techniques |
99 | The stationary phases is? | The paper | Separating Techniques |
100 | The mobile phase is? | the solvent | Separating Techniques |
101 | The Rf value is | The distance moved by the spot/ distance moved by the solvent | Separating Techniques |
102 | What is used to test for water? | anhydrous copper sulfate | Separating Techniques |
103 | What colour change is observed when water is added to anhydrous copper (II) sulfate? | white to blue | Separating Techniques |
104 | What is the name of the ppt when silver nitrate solution is added to potassium bromide? | silver bromide | Separating Techniques |
105 | During a flame test, what is the name of the piece of apparatus a solid is added to? | nichrome wire | Separating Techniques |
106 | What is the nichrome wire dipped into? | Concentrated hydrochloric acid | Separating Techniques |
107 | What Bunsen burner flame is used? | The roaring blue flame | Separating Techniques |
108 | What colour of flame would lithium ions produce? | crimson | Separating Techniques |
109 | What colour of flame would sodium ions produce? | yellow/orange | Separating Techniques |
110 | What colour of flame would potassium ions produce? | lilac | Separating Techniques |
111 | What colour of flame would calcium ions produce? | brick-red | Separating Techniques |
112 | What colour of flame would copper ions produce? | blue-green/ green-blue | Separating Techniques |
113 | What is a cation? | A positively charged ion | Separating Techniques |