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Chemistry 1.4 Selected Elements NCEA Level 1 Flashcards | StudBud
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Chemistry 1.4 Selected Elements NCEA Level 1
What does an acid and metal make
What is the symbol for Ozone
Chemistry 1.4 Selected Elements NCEA Level 1
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1
What is the symbol for Ozone
O=O
O2
O3
O
2
What does an acid and metal make
metal oxide and hydrogen
metal salt
Metal salt and hydrogen
metal salt and water
3
Why would you use steel instead of iron in vehciles
steel is negatively charged
steel doesnt corrode as quickly as iron
steel is harder/stronger
steel has a higher melting point than iron
4
What types of acid is produced when chlorine reacts with water
sulfuric and hypochloric
hydrochloric and nitric
Sulfuric and hypochlorus
hydrochloric hypochlorus
5
What is the electronic arrangement of Boron
2,5
2,3
2,8
2,8,3
6
Name the metal that was called Wolfram
Sodium
Potassium
Scipadium
Tungsten
7
What oxides form when Nitrogen combines with oxygen
Nitrogen monoxide and Nitrogen Suboxide
Nitrogen suboxide and Nitrogen Superoxide
Nitrogen dioxide and Nitrogen Peroxide
Nitrogen monoxide and Nitrogen Oxide
8
What is produced when magnesium and hydrochloric acid is added
MgCl
Magnesium oxide
Bunsen burner
Magnesium Chloride
9
Which of these is balanced chemical equation for Nitrogen + Oxygen --> Nitrogen dioxide
N2 + O2 --> 2NO2
N2 + 2O2 --> 2NO2
N + O --> NO
O + N2 --> NO2
10
What does the activity series show
How bendy it is
How heat conductive it is
How reactive a metal is
How shiny it is
11
Which one of these is not a transition metal
Copper
Gold
Iridium
Indium
12
What is chlorine's solubility in water like
Doesn't Matter
Slightly Soluble
Not Soluble
Very Soluble
13
Nitrogen is soluble in water
True
False
14
What states are the reactivity series measured in
Liquid and Gas
Solid and Liquid
Solid
Liquid
15
What colour is chlorine
Colourless
Red/Orange
Blue/Purple
Yellow/Green
16
Which of the following is the most electronegative
Calcium
Flourine
Carbon
Helium
17
What isn't a property of an alloy
resists corrosion
conducts electricity
ductile
non-malleable
18
What are electrical wires made from
Lead
Copper
Titanium
Chromium
19
What describes the hardness and shininess of a metal
Density and lustre
density and malleability
malleability and density
lustre and conductivity
20
What is the electron arrangement of Nitrogen
2,4
2,25
2,3
2,5
21
What is the relationship between density and electricall conductivity
the atomic mass of the atoms
electrons are on the valence shell
the bond between the atoms
there is no relationship
22
Which of these is an allotrope carbon
Graphine
Coal
Magnesium
Ozone
23
when lithium reacts with water what is produced
2Lih
lithium hydroxide
H20
Lithium hydroxide and hydrogen gas
24
What metal has 20 protons in the nucleus
Carbon
Calcium
Tungsten
Titanium
25
What is chlorine’s state at room temperature
Liquid
Solid
Too cool to have a state
Gas
26
Arrange these metals from the least to most reactive
Pb, Cu, Zn, K
Ka, Na, Fe, Au
Al, Mg, Pb, Na
Pb, Au, Ag, Cu
27
Define heat in a metal
both
neither
electrons vibrating
Atoms vibrating
28
What two substances react together to form Ammonia
Hydrochloric acid and water
Sulfuric acid and metal chloride
Ammonium chloride and Calcium hydroxide
Ammonium chloride and water
29
What is the electron arrangement of Rubidium?
2, 8, 3
2, 8, 8, 18, 8, 1
2, 8, 8, 18, 8, 2
2, 8, 8, 8, 8, 8, 3
30
Which of following is a noble gas
Helium
Oxygen
Krypton
Hydrogen
31
How dense is Ammonia
Denser than air
As dense as air
Air is denser
Less dense than air
32
Which of the following is a Chlorine compound
Sodium Hypochlorite
Sodium Chlorite
Sodium Hydrogen Chloride
Sodium Oxy Chloride
