Chapter 1 Introduction to Chemistry

What is meant by chemistry?

• Studies the structures of matters.

• Studies the structures and composition of matters.

• Studies the structures , composition and properties of matters.

• Studies the structures , composition, properties and interaction of matters.

The following are the chemicals used in daily life EXCEPT

• Sugar

• Paint

• Detergent

• Sound

Table salt is made up of 1 sodium atom and 1 chlorine atom. This is an example of....

• structure of matter.

• composition of matter.

• interaction between matters.

• properties of matter.

Which of the following is an example of development of chemistry in industry?

• Technology development in food preservation.

• Technology development in open burning.

• Technology development in deforestation

• Technology development in global warming.

Searching for an antidote for dengue fever. The following are the careers related to above situation EXCEPT

• Doctor

• Pharmacist

• Researcher

• Teacher

The following careers are related to chemistry EXCEPT

• Cosmetic chemist

• Chemistry Teacher

• Food scientist

• Plumber

The picture beside shows the __________of an ozone.

• properties

• sructure

• interaction of matter

Magnesium reacts with oxygen to form magnesium oxide. This is an example of....

• structure of matter.

• composition of matter.

• interaction between matters.

Chemistry is one of the fields of science that studies the

I structure of matter

II properties of matter

III composition of matter

IV interactions of matter

• I, II and III

• I, II and IV

• II, III and IV

• I, II, III and IV

Which arrangement of the steps in scientific method is correct?

• Making observation → Identifying problem → Making hypothesis → Controlling variables → Planning an experiment → Collecting data → Making conclusion

• Making observation → Making hypothesis → Identifying problem → Planning an experiment → Controlling variables → Collecting data → Making conclusion

• Making observation → Identifying problem → Controlling variables → Making hypothesis → Planning an experiment → Collecting data → Making conclusion

• Making observation → Identifying problem → Making hypothesis → Controlling variables → Collecting data → Planning an experiment → Making conclusion