How Well Do You Know Your Chemistry?

10 Questions | By Dhig | Last updated: Mar 21, 2022 | Total Attempts: 883

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How Well Do You Know Your Chemistry? - Quiz

Questions and Answers

1.

Water is a compound that is made from two types of elements. What are the two elements?
- A.
  
  Helium and carbon dioxide
- B.
  
  Hydrogen and Oxygen
- C.
  
  Hydrogen and carbon dioxide
2.

When vinegar (or another acid) is added to baking soda (also known as sodium bicarbonate), the mixture fizzes and a gas is produced from the reaction. This gas is called
3.

Helium is a very light gas that can be used to inflate ballons and give them lift. Hydrogen is a gas that is also lighter than air. Why is Hydrogen not used to inflate balloons?
- A.
  
  It smells bad.
- B.
  
  Hydrogen is a purple gas and can stain objects that it comes in contact with.
- C.
  
  It is too light, one small balloon filled with helium is enough to lift a car off the ground
- D.
  
  It is flammable
4.

What is the common household name for Sodium chloride?
- A.
  
  Salt
- B.
  
  Baking powder
- C.
  
  Washing powder
- D.
  
  Toothpaste
- E.
  
  Yeast
5.

What are the building blocks of all matter?
- A.
  
  Elements
- B.
  
  Water
- C.
  
  Atoms
- D.
  
  Cells
6.

The periodic table is a table of ___________
7.

Mg is the symbol for what element on the periodic table?
- A.
  
  Mercury
- B.
  
  Zinc
- C.
  
  Lead
- D.
  
  Magnesium
8.

Chemical changes occur when a new substance is formed. Which of the following is a physical change and not a chemical change?
- A.
  
  Ice melting
- B.
  
  Baking soda reacting with vinegar
- C.
  
  An egg being fried
- D.
  
  Magnesium ribbon being burnt
9.

Which statement is correct for pure substances?
- A.
  
  The substance must be an element.
- B.
  
  The ingredients can be separated.
- C.
  
  The substance cannot be split up easily.
- D.
  
  The substance must be a compound.
10.

What is one indicator that a chemical change has taken place

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