Chemical Properties and Changes

What are physical properties?

• Properties observed without changing the object

• Properties that require a chemical reaction

• Properties that are invisible

• Properties that are only theoretical.

Tags

NGSS.MS-PS1-4

Which state of matter is not mentioned in the diagram?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

Chemical properties can only be observed by ________ the substance.

• Touching

• Viewing

• Changing

• Smelling

Which of the following is a chemical property?

• Color

• Texture

• Reactivity with other chemicals

• Mass

Which of the following is NOT a chemical property?

• Flammability

• Toxicity

• Solubility

• Oxidation

Fill in the blank: Chemical properties cannot be determined by _______ a sample.

• Touching

• Viewing

• Smelling

• Tasting

Which of the following is a physical property?

• Oxidation

• Solubility

• Toxicity

• Reactivity

What are some signs that a chemical reaction has occurred?

• Change in color

• Change in odor

• Change in temperature

• All of the above.

Tags

NGSS.MS-PS1-2

The law of conservation of mass states that matter cannot be ______ or destroyed.

• Created

• Changed

• Measured

• Observed

Tags

NGSS.MS-PS1-5

Which of the following is NOT a sign of a chemical reaction?

• Production of light

• Formation of a precipitate

• Change in mass

• Escape of gas

Tags

NGSS.MS-PS1-2