General Chemistry 1

What states of matter that has definite shape and volume

• Solid

• Liquid

• Gas

• Plasma

Which properties of matter can be observed and measured without changing the identity and composition of the substance ?

• Extensive Properties

• Intensive Properties

• Chemical Properties

• Physical Properties

Which can be classified as homogeneous mixture ?

I.Air II.Salt

III. Solutions IV. Blood

• III only

• III only

• I ,IIand III only

• I, II,III,IV

Which among the physical properties is refers to describes the physical appearance (how it looks) of the substance like ?

• Color

• Texture

• Mass

• Density

What properties of chemical is refers to the ability of the substance to burn like wood, paper, and the like?

• Flammability

• Melleability

• Reactivity

• Sollubility

What law of matters states that the mass is conserved during a chemical reaction?

• Law of Conservation

• Law of Proportion

• Law of define Composition

What is the role of chemistry to society and technology ?

• Chemistry increase scientific knowledge through basic research

• Chemistry does not give a contribution to our society

• Chemistry has a negative impact to our community because of the product processes that affects the environment

• Chemistry is a just an artificial subject that less important to the improvement of our society.

How many protons are present if an atom has a mass number of 23 and atomic number of 11?

• 11

• 23

• 12

• 14

Carbon -12 atom has _________.

• 6 electrons, 6 protons , 6 neutrons

• 12 electrons ,6 protons, 6 neutrons

• 6 electrons, 12 protons, 6 neutrons

• 16 electrons, 6 protons , 6 neutrons