matter

Matter is...

• something you can see

• everything that occupies space and has mass

• everything we can touch and measure

• all the anwers are correct

Matter is classified as:

• elements and compounds

• mixtures and elements

• pure substances and mixtures

• compounds and mixtures

Is the simpliest form of matter. It can be found in the periodic table

• element

• atom

• substance

• molecule

These are mixtures' characteristics

• definite composition

• physical blend of two or more substances

• their components can be separated

• a new compound is formed

which of the following are ONLY intensive physical properties?

• color, mass, density, volume

• weight, shape, melting point, ductility

• boiling point, color, density, volume

• density, color, boiling point, odor.

Which of the following are ONLY extensive physical properties?

• solubility, mass, lenght

• volume, mass, number of moles

• weight, color, shape

• melting point, solubility, volume

which of the following is a chemical property?

• type of bond

• solubility

• melting point

• conductivity

Select all the evidences of a chemical change

• bubbles

• change of color

• heat release

• not visible changes

what type of substance ammonia (NH₃ ) is?

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Copper is a/an?

• homogeneous mixture

• compound

• element

• heterogeneous mixture