L2 Properties of Matter

How are you this morning?

• Great

• Good

• Okay

• Struggling

Hydrogen gas (H₂) can be found in trace amounts in Earth’s atmosphere. Which of these statements describes a physical property of hydrogen?

• Hydrogen is found in acids.

• Hydrogen gas is highly flammable.

• Hydrogen reacts with oxygen to form water.

• Hydrogen gas is less dense than oxygen gas

Which of these is a chemical property of a sheet of paper?

• The paper can be burned

• The paper can be crumpled

• The paper does not attract a magnet.

• The paper does not conduct electricity.

Which of these choices is a physical property that does not change when the size of the sample changes?

• mass

• volume

• density

• flammability

The pictures below show four objects—a paper clip, a pair of scissors, a needle, and a horseshoe. Assume that each object is made of the same metal.

Which of these physical properties is not similar in all four of these objects?

• mass

• magnetism

• specific heat

• electrical conductivity

Which of these statements describes a chemical property of an object?

• The object is white in color.

• The object has a powdery texture

• The object’s density is 2.11 g/cm³.

• The object reacts with acid to form water.

What kind of change occurs if matter changes in amount, size, or shape?

• substance change

• chemical change

• physical change

• elemental change

Ice melting

• Chemical Change
• Physical Change

Which of the following could indicate that a chemical change took place?

• Change in color

• Production of Energy

• Formation of Gas

• All are correct

Which of the following best describes how you felt when you were answering Questions 2-9?

• I learned all about it before.

• I learned some of it before.

• This is all new information.