Chemistry Definitions Beginner Quiz 1
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Beginner Quiz 1
1. What is an atom?
The smallest unit of an element that retains its properties
A type of molecule
A large collection of molecules
2. Which of the following is a molecule?
H
2
O (water)
A single hydrogen atom
A glass of water
3. What is an element?
A substance made of only one kind of atom
A mixture of different atoms
A type of solution
4. What is a compound?
A substance made of two or more different elements chemically bonded
A single atom
A mixture of elements
5. What is the periodic table?
A chart organizing all known elements by their properties
A table used for eating meals
A list of chemical reactions
6. What is a chemical reaction?
A process in which substances change to form new substances
Mixing sand and water
Melting ice
7. What is a solution?
A mixture where one substance is dissolved in another
A type of atom
A chemical reaction
8. What is an acid?
A substance that increases the amount of H
+
ions in water
A substance that increases the amount of OH
-
ions in water
A type of metal
9. What is a base?
A substance that increases the amount of OH
-
ions in water
A substance that increases the amount of H
+
ions in water
A type of gas
10. What is a mixture?
A combination of two or more substances not chemically bonded
A single element
A chemical reaction
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