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Y7 Chemistry Elements Compounds and Mixtures + Chemistry Y7 Flashcards | StudBud
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Y7 Chemistry Elements Compounds and Mixtures + Chemistry Y7
Y7 Chemistry Elements Compounds and Mixtures + Chemistry Y7
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1
I am gas at room temp. If you breathe me in your voice sounds really high. What am I?
Oxygen
Hydrogen
Helium
Calcium
2
metals are generally...
brittle
solid at room temperature
dull
liquids at room temp
3
I am the most abundant element in the universe. I am...?
Oxygen
Hydrogen
Iron
Silicon
4
What is melting?
Gas → Liquid
Solid → Gas
Liquid → solid
Solid → liquid
5
What is freezing?
Liquid-soIid
Liquid-Solid
England
Gas → solid
6
What is NaCl?
Hydrogen Chloride
Carbon Nitronite
Sodium Chloride
Sodum Clorine
7
I conduct heat well. I am shiny with a high melting point. Which element am I?
Bromine
Neon
Iron
Carbon
8
All stuff (matter) is made up of
cheese
string
fire
particles
9
How many elements exist?
117
116
118
171
10
Which of these is NOT a property of a liquid?
Keeps it's volume
Make a strange sound
Can flow
Can be compressed
11
What is sodium chloride?
Sugar
Sea water
DOGE
Salt
12
A clear gas normally, I turn bright red when used in lights on "kebab shop" signs...
Chlorine
Neon
Fluorine
Sodium
13
what are the two elements in water?
Liquid
Aqua
Hydrogen and Oxygen
Helium and Hydrogen
14
Which of these is a metal?
Water
Sodium
Sulfur
Bromine
15
What is NO
2
?
Nitrogen Dioxide
Nitrogen oxide
Hydrogen oxide
Hydrogen Dioxide
16
Which of these is liquid at room temperature?
Silicon
Neon
Mercury
Uranium
17
What is evaporation?
Liquid → gas
Liquid → solid
Solid → liquid
Gas → liquid
18
What is it's atoms?
1 atom of Hydrogen and 2 atoms of oxygen
1 atom of water
I don't know
2 atoms of Hydrogen and 1 atom of oxygen
19
I conduct heat well. I am shiny. I am liquid at room temp. What am I?
Mercury
Tungsten
Nitrogen
Sodium
20
I am an unreactive metal commonly used in jewellery...
Lithium
Iron
Gold
Diamond
21
What is the chemical symbol for water?
H2O
HO2
2HO
HO
22
I am also often used in jewellery, but I'm not gold...
Carbon (diamond)
Palladium
Platinum
Silver
23
What is this?
Carbon Trioxide
Water
Carbon Dioxide
Carbon Doxide
24
Which of these is a mixture?
Air
Table salt
Water
Iron
25
What is the symbol for Potassium?
Ar
P
Po
K
26
How you will make Bunsen burner flame hotter?
Open the air hole
Add more gas
Blow on it
Close the air hole
27
What is it's atoms?
2 Carbon and 1 Oxygen
Carbon and Oxygen
1 Carbon and 2 Oxygen
I don't know
28
Which of these is a pure substance?
Petrol
Calcium
Sea Water
Steel
29
I'm used to keep pools clean. I've probably stung your eyes at least once before now...
carbon
zinc
oxygen
chlorine
30
How many atoms in water?
4
1
3
2
31
What is sublimation?
Liquid → gas
Solid → gas
solid → liquid
Gas → solid
32
What is the elemental symbol for Carbon?
Cn
Ca
C
K
33
What is symbol for gold?
Gd
Au
Lr
Go
34
What is condensation?
Liquid → gas
Gas → liquid
Solid → liquid
Liquid → Solid
35
Which of these is not a metal?
chlorine
copper
calcium
cobalt
36
What is this?
H2O
Ocean
Waaterr
Water
37
What is the symbol for silver?
Al
Ag
Sl
Si
38
What is the symbol for iron?
Er
eF
Ir
Fe
39
What is a compound?
When an element can't be broken down
Compounds don't exist
An element in the Periodic Table
When two elements are chemicaly bonded
40
The chemical symbol for water tells you that there are...
2 oxygen atoms and 1 hydrogen atom
2 hydrogen and oxygen atoms
2 hydrogen atoms and 1 oxygen atom
that my brain hurts and I need a cookie
