Unit 1 Quiz 1: Introduction to Matter (F24)

Which is a way that a piece of paper can go through a chemical change?

• fold the paper in half
• soak the paper in water
• burn the paper with fire
• cut the paper with scissors

Which of these is an example of a new substance being formed?

• a nail rusting
• a wall being painted
• water changing to steam
• paper being folded

Which of the following are examples of a Chemical Change? Choose ALL that apply.

• Iron Rusting

• Gas Burning

• Breaking a glass

• Boiling water

• Burning Wood

Which of the following would be considered a physical property?

• Color

• Flammability

• pH

• Reactivity

Which is NOT a physical property?

• odor
• reacts with acid
• ability to conduct electric current
• hardness

Which are Physical Properties and which are Chemical Properties

Groups:

(a) Physical Property

,

(b) Chemical Property

• precipitate is formed

• melting point

• change in temperature

• malleability

• gas is formed

• viscosity

• conductivity

• change in color

All samples of the same substance have the same properties because...

• they are made up of the same type of particles and have the same chemical composition

• they are made up of the same particles, but in a different arrangement.

• they are affected by different external factors

• they have a non-uniform and random composition

A compound _________

• has a fixed composition

• always contains chemical compounds.

• always has at least one oxygen

The most common methods for separating mixtures are

• filtration, distillation, evaporation, and chromatography

• boiling, burning, heating, and cooling

• freezing, melting, condensation, and solidification

• mixing, whipping, shaking, and combining

Which is not a chemical property?

• Flammability

• Reactivity

• Precipitate

• Melting point