Chem1

Made up of atoms from various elements that chemically combined in a fixed ratio

• elements

• compound

• pure substance

• atom

A pure chemical substance that made up of same type of atom

• element

• compound

• atom

• molecule

Which of the following is an element?

• fire

• water

• silver

• ore

What is Chemistry?

• The study of Life and Living Organisms.

• The study of structures of living organisms

• The study of matter and the changes that matter undergoes.

• The study of Earth.

What are the fundamental building blocks of matter?

• Matter

• Oxygen

• Atoms

• Mass

A substance that is made from the atoms of two or more elements that are chemically bonded.

• compound

• element

• gas

• liquid

Which of the two is a homogeneous mixture?

• human body

• amalgam

Compounds can be decomposed only by __

• Filtration

• Evaporation

• Chemical change

Composed of one type of element or compound, cannot be separated is what we call __.

• Pure substances

• Mixtures

In which of the 3 states of matter are the particles mostly touching but arranged in a random way?

• solid

• liquid

• gas