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Elements, Compounds and Mixtures Flashcards | StudBud
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Elements, Compounds and Mixtures
Elements, Compounds and Mixtures
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#Elements #Compounds #Mixtures #chemistry key stage 3
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Questions
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Answers
1
The group 1 elements on the periodic table are known as ......... metals
acidic
alkali
reacting
red
2
The table that contains the elements is called the ........ table.
period
periodic
perfect
chemical
3
Protons are ............. charged particles.
nil
negatively
neutraly
positively
4
The correct spelling of the word that shows a reaction between acids and alkali is what?
Neutrilisation
Newtralisation
Nutralisation
Neutralisation
5
Which scientific word best describe the 'changing from a gas to a liquid'?
evaporation
reversible
condensation
melting
6
Sodium + Hydrochloric acid → ................... + Hydrogen (what is missing?)
Sodium hydrochloric
Sodium chloric
Sodium chlorine
Sodium chloride
7
A solution that won't dissolve any more solute at a set temperature is said to be .... what?
solvent
dissolving
saturated
soluble
8
What is the
solid substance
that is being dissolved?
soluble
solution
solute
solvent
9
The chemical symbol for aluminium is what?
Am
Al
Au
Ag
10
The horizontal rows of the periodic table are called what?
columns
periods
positions
grids
11
Zinc reacts with
what
to produce
Zinc Sulphate
and Hydrogen.
(Name the acid)
Hydrochloric acid
Nitric acid
Sulphuric acid
Citric acid
12
The result of the mixture of a solute and a solvent is called what?
solute
solution
solubility
insoluble
13
Electrons are ............... charged particles
neutraly
positively
nil
negatively
14
What is the total number of atoms in a molecule of aluminium oxide (Al
2
O
3
)?
4
5
6
3
15
A combination of different metals is called what?
A metallic
An alloy
Aionic element
A mixture
16
The abbreviation
UI
stands for what?
Universal Indigo
Universal Indication
Universal Institution
Universal Indicator
17
What is the chemical symbol for gold?
Ag
Gu
Au
G
18
Rock salt is simply a ................ of salt and sand.
element
mixture
Compound
substance
19
The most
reactive metal
in the reactivity series league is which element?
potassium
sodium
magnesium
calcium
20
The atomic number for sodium is......
12
11
33
23