Welcome to your Grade 9 Chemistry chapter 1
After carefully reading the following 30 questions, choose the correct answer.
1.
Which science deals with the properties, composition, and structure of substances, and the transformations they undergo?
2.
What is defined as a physical substance that occupies space and possesses rest mass?
3.
Which term describes the nature of a substance's ingredients or how a mixture is made up?
4.
Which branch of chemistry is the study of chemical processes occurring in living matter?
5.
What is the study of the processes that control the abundance and composition of chemical compounds in geologic environments?
6.
Which branch of chemistry is concerned with the application of the techniques and theories of physics to chemical systems?
7.
Which of the following is a particular kind of matter with uniform properties, such as gold or silver?
8.
Which area of chemistry investigates physicochemical phenomena using techniques from atomic and molecular physics?
9.
In the context of school buildings, the arrangement of doors, windows, and walls is referred to as its:
10.
What is the term for a marked change in the form, nature, or appearance of a substance?
11.
Table salt is chemically composed of which two elements?
12.
Which chemical is produced by industries in Ethiopia for use as a bleaching agent?
13.
Which industry in Ethiopia produces products like soap, detergent, and cosmetics?
14.
Which substance is an alloy of chromium, carbon, and other elements?
15.
How many main disciplines is the study of modern chemistry generally broken down into?
16.
Which branch of chemistry deals with the study of the composition of matter?
17.
Which chemical produced in Ethiopia is used for water treatment?
18.
Which of the following is considered a chemical product rather than a basic chemical?
19.
What is the study of chemicals that are not based on carbon?
20.
The release of toxic substances into the environment results in which prime global issue?
21.
Which industry category includes items such as drugs and medicines?
22.
Approximately how many medium and large-scale chemical industries are there currently in Ethiopia?
23.
Which of the following is a key term defined as power derived from physical or chemical resources to provide light and heat?
24.
According to the textbook, chemistry is essential for meeting which basic need?
25.
Which field is the application of chemistry to agriculture concerned with?
26.
Which branch of chemistry focuses specifically on carbon-based chemicals?
27.
Which of these is an example of an industrial inorganic chemical produced in Ethiopia?
28.
What is the attribute, quality, or characteristic of a substance called?
29.
Which Ethiopian industry produces natural gum and candles?
30.
Chemistry and Medicine are related specifically in which area?
31.
Which discipline is concerned with macroscopic and atomic properties in chemical systems?
