Review basics of Chemistry

change in appearance,shape, color and state

smallest part of matter is 

Chemical reaction is the ________________   _________   _________

super saturated solution cools down and forms

If you know number of protons you can determine 

this state of matter has no definite shape or definite volume 

Name of groupII metals is

particle with no charge 

process , when a solid changes to gas.

study of characteristics,structure and  ,composition of matter is 

Elements of group17 are known as

A process used to test a hypothesis 

Atomic mass of Phosphorus is

add protons and neutrons =    ___________

resource , for information of elements is

Atomic mass of Mercury is

Fluorine and Hydrogen are __________   elements

atomic number of sulfur is 

 definite shape and definite volume is the characteristic of

_______has mass and occupies space 

watch, when conduct an experiment  we record  as    

Knowledge based on observation and experiments.

particle inside nucleus,has Positive charge.is called 

Most active metals are

Noble gases are 

research,question,hypothesis,experiment,observation,data ,conclusion are the steps of

it is an example of precipitation.

study of carbon compound is known as