Chemistry Review Game

What is chemistry?

• study of life

• study of matter and the changes it undergoes

• study of the physical features of the earth and its atmosphere, and of human activity

• study of people

Matter is _________________.

• anything that has mass and take up space

• anything you cannot observe

• anything beyond your five senses

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

When reactants chemically bond, what happens to their atoms? 

• atoms are lost 
• atoms are destroyed
• atoms are gained
• atoms are rearranged

Is melting butter for popcorn a chemical or physical change? (*chemical change results in a new substance; physical does not)

• chemical

• physical

The SI unit to measure time is?

• meter
• celcius
• seconds
• kelvin

SI is 

• square meter
• seconds instant
• international system of units

A benefit of the SI system is that it is?

• not used in the US
• not used to measure temperature
• based on units of 10's
• based on units of 100's

Elements in the Lanthanide family are colored:

• Pink
• Green
• Blue
• Red

_________  is a substance made up of atoms of two or more different elements joined by chyemical bonds.

• atom
• compound
• homogeneous
• pure substance