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Chemistry for Dummies
Can you answer these simple chemistry questions?
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Last updated: February 12, 2025
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| First submitted | February 12, 2025 |
| Times taken | 885 |
| Average score | 80.0% | Report this quiz | Report |
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1. Which element's symbol is O?
oganesson
coal
nitrogen
oxygen
2. At what temperature does water freeze?
0 °C / 32 °F
100 °C / 212 °F
-18 °C / 0 °F
36°C / 97 °F
3. How does rust form?
due to a long-term contact of metal with fresh air
when many people rub metal in the same place
after some time the metal just deteriorates
due to a long-term contact of metal with sunlight
4. Which of these substances doesn't dissolve in water?
sugar
oil
salt
ethyl alcohol
5. What are balloons that float upwards usually filled with?
carbon dioxide
oxygen
hydrogen
helium
6. What is evaporation?
radiation emisson
escape of an atom from bonding with another atom
transition of a substance from a liquid to a gaseous state
dissolving in water
7. Which of these substances is flammable?
wood
steel
water
glass
8. What is the chemical formula for water?
HO₂
O₂H
H₂O
OH₂
9. Which gas is the main component of air?
carbon dioxide
methane
nitrogen
steam
10. Which of these substances is a liquid at r.t.?
iodine
ethyl alcohol
oxygen
carbon
11. Is an electron positively or negatively charged?
positively
negatively
it's not charged at all
12. What is measured by the pH scale?
environment's acidity or alkalinity
particle density
harmfulness of a substance to humans
water solubility
13. Sodium chloride is the scientific term for what substance?
baking powder
salt
ammonia
baking soda
14. What do the numbers 90, 91 etc. mean at gas stations near the petrol pumps?
they determine the percentage of pure gasoline in the fuel solution
determine the percentage of the fuel tank that can be filled with a given type of petrol
it's an octane rating that determines resistance to uncontrolled spontaneous combustion
it's the time given in hours after which the car needs to be refueled
15. What causes the protein to coagulate?
oxidation
chemical reaction with fats
high pressure
high temperature
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2 Comments
Neodymium
+1
Level 63
Feb 12, 2025
1/15
LilSaggy
+1
Level 25
Apr 8, 2025
You are a buffoon, an absolute abhorrent baboon, you abysmal arachnid, you silly sasquatch, how are you this terrible, not even a millipede with three fingers could be as bad as you, you Saturn burger. I am beyond disappointed, you lily pad.
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