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101.
What is the chemical formula for carbon monoxide, a toxic gas produced by incomplete combustion?
102.
What is the term for a substance that speeds up a chemical reaction but is consumed in the process?
Explanation:
103.
Which element is commonly used in the manufacture of computer chips and is a good conductor of electricity?
Explanation:
104.
Which of the following is NOT a primary state of matter?
Explanation:
105.
What is the smallest unit of an element that retains the properties of that element?
Explanation:
106.
Which state of matter has a definite volume but no fixed shape?
Explanation:
107.
What is the term for the process in which a gas changes directly into a solid without becoming a liquid first?
Explanation:
108.
Which of the following is a chemical property of matter?
Explanation:
109.
What is the term for a pure substance made up of atoms with the same number of protons?
Explanation:
110.
Which of the following is NOT a chemical change?