Grade 9 Chemistry

Which of the following statements is NOT part of the Particle Theory of Matter

• All matter consists of tiny particles with empty spaces between them

• Particles are never in motion

• Particles attract each other

• Different substances consist of different kinds of particles

"A substance that is made up of only one type of particle" describes...

• Alloy

• Mechanical Mixture

• Pure Substance

• Solution

"A characteristic of a substance that can be determined without changing the composition of the substance" is...

• Chemical property

• Matter

• Physical property

• Tag

Which of the following characteristics is NOT a physical property?

• Combustibility

• Lustre

• Malleability

• Optical Density

It is always accompanied by a change in the starting substance(s) and the production of one or more new substances.

• Chemical Behaviour

• Chemical Change

• Chemical Reaction

• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is NOT an example of chemical change?

• Gas production

• Heat released

• Change of state

• Solid precipitated formed

Tags

NGSS.MS-PS1-2

"A pure substance composed of two or more different elements that are chemically bonded" is...

• Compound

• Element

• Mechanical Mixture

• Solution

Tags

NGSS.MS-PS1-1

An element that is malleable, conducts heat, ductile and generally a solid at room temperature is...

• Metal

• Non-metal

• Metalloid

• Any of the above

All elements in Group 1 (Alkali Metals) have an ionic charge of....

• 1-

• 2-

• 2+

• 1+

To which chemical family do the stable or non-reactive elements belong?

• Alkali Metals

• Halogens

• Noble Gases

• Transition Metals