Question 1

Which of the following best describe reactivity?

Accepted Answer

It is the tendency of a substance to undergo chemical reaction, either by itself or with other materials, and to release energy.

Answer

It is the degree to which a chemical substance can damage a living organism.

Answer

It is the act of emitting radiation spontaneously.

Answer

It is the ability of a chemical to burn or ignite, causing fire or combustion.

Question 2

Which of the following is NOT true about chemical properties?

Accepted Answer

Chemical properties are those that can be identified directly without changing the identity or composition of a material.

Answer

It can only be determined if there is a change in molecular structure of a substance.

Answer

Chemical change must occur for a chemical property to be observed and measured.

Answer

Chemical properties are not readily seen that is the reason why chemical containers have labels indicating its chemical property.

Question 3

Which of the following is used to determine an unknown substance?

Accepted Answer

density

Answer

shape

Answer

volume

Answer

area

Question 4

Which of the following is NOT an example of intensive property?

Accepted Answer

Mass

Answer

Electrical conductivity

Answer

Melting point

Answer

Density

Question 5

Copper wire is the most used to carry electricity in our households because it has good ________________________.

Accepted Answer

electrical conductivity

Answer

Heat conductivity

Answer

boiling point

Answer

melting point

Question 6

It is the degree to which a chemical substance can damage a living organism.

Accepted Answer

Toxicity

Answer

Flammability

Answer

Acidity

Answer

Basicity

Question 7

What are you going to use to separate aluminum cans from cans containing steel?

Accepted Answer

Magnet

Answer

Multi-meter tester

Answer

thermometer

Answer

Boil them

Question 8

Which of the following is used to separate solid from liquid?

Accepted Answer

Filter paper

Answer

Refrigerator

Answer

Hot water

Answer

magnet

Question 9

Intensive and extensive properties are both ______________________.

Accepted Answer

Physical properties

Answer

Physical and Chemical   Properties

Answer

Chemical Properties

Answer

Type of solubility

Question 10

It is the act of emitting radiation spontaneously.

Accepted Answer

Radioactivity

Answer

Flammability

Answer

Acidity

Answer

Basicity

Question 11

What is the best tool to separate sand from salt?

Accepted Answer

magnet

Answer

comb

Answer

Thermometer

Answer

Multi-meter

Question 12

It is the ability of a chemical to burn or ignite, causing fire or combustion.

Accepted Answer

Flammability

Answer

Basicity

Answer

Radioactivity

Answer

Acidity

Question 13

It is best in describing unknown substance.

Accepted Answer

Extensive Properties

Answer

Chemical Properties

Answer

Physical Properties

Answer

Intensive Properties

Question 14

If the property is _______________ by altering the sample size, it is an intensive property.

Accepted Answer

unchanged

Answer

moved

Answer

changed

Answer

not moved

Question 15

To identify an unknown substance, knowing _________ is the most important thing to do.

Accepted Answer

all of these

Answer

electrical conductivity

Answer

melting point

Answer

boiling point

Related quizzes

Related quizzes