Classification of Matter

In terms of state, matter can be classified as pure substance or a mixture

(a)  

Compounds are substances composed of two or more kinds of atoms that are chemically bonded together in fixed proportions.

(a)  

The elements which have both properties of metals and nonmetals.

(a)  

Elements that are good conductors of heat and electricity

(a)  

A mixture that has two or more and can be separated easily from the other substance

(a)  

Which of the following refers to two or more atoms joined together to make a new substance?

• element

• substance

• molecule

• compound

Which of the following refers to a mixture in which all the particles are mixed evenly?

• solution

• mixture

• molecules

• compound

A sample of a mixture is in the liquid state. It is clear and colorless and does not exhibit the Tyndall effect. The sample is heated and you observe that the liquid in the mixture evaporates, leaving a white solid in the dish. How can you best describe the original sample of matter?

• solution

• compound

• homogeneous

• heterogeneous

Which of the following is an example of heterogeneous mixture?

• mixed fruits

• salt water

• alloy

• oil

Which of the following is the most abundant element in the universe?

• Helium

• Hydrogen

• Argon

• Neon