Welcome to your General Science Grade 8 Unit 3
Choose the correct answer from the given alternatives
1.
What type of bond is formed between non-metal atoms by sharing electrons? a) Ionic bond
2.
Which of the following compounds contains both ionic and covalent bonds?
3.
What is the general formula for an alkane?
4.
Which of the following is an example of an alkene?
5.
What is the primary characteristic of an acid?
6.
Which of the following is an example of a strong acid?
7.
What is the general formula for an alcohol?
8.
Which of the following is a greenhouse gas?
9.
What is the common name for sodium bicarbonate (NaHCO3)?
10.
What type of reaction is represented by the equation: 2H2 + O2 → 2H2O?
11.
Which of the following is a characteristic of bases?
12.
What is the chemical formula for methane?
13.
Which of the following is an example of an ionic compound?
14.
The process of converting a liquid into a gas at temperatures below its boiling point is called:
15.
What is the chemical formula for sulfuric acid?
16.
Which of the following is a noble gas?
17.
What is the chemical formula for glucose?
18.
What is the primary component of natural gas?
19.
What is the chemical formula for hydrochloric acid?
20.
What is the general formula for a ketone?
21.
Which of the following is an example of a displacement reaction?
22.
What is the chemical formula for common table salt?
23.
Which of the following is a greenhouse gas found in the Earth's atmosphere?
24.
The process of a substance changing directly from a solid to a gas is known as:
25.
What is the chemical formula for ammonia?
26.
Which of the following is an example of a polar molecule?
27.
What is the chemical formula for acetic acid?
28.
What is the general formula for an ester?
29.
What is the chemical formula for sodium hydroxide?
30.
Which of the following is an example of a nonmetallic element?
