ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: Nilo16 on April 11, 2014, 03:10:26 pm

Title: chemistry question
Post by: Nilo16 on April 11, 2014, 03:10:26 pm

Q1. Elements are made up  of one type of atom or two or more atoms of the same type. What are the examples?
Q2.The state of matter can be changed by increasing something? or changing something?
Q3. Compounds are made up of two or more different types of atoms. what are the three examples?

Title: Re: chemistry question
Post by: hobbitle on April 11, 2014, 05:05:39 pm

Q1. Elements are what exist on a periodic table. Example of poly atomic elements are H2, N2, O2 which all require two atoms to exist "naturally".

Q2. States of matter are dependant on temperature and pressure.

Q3. "What are the three examples?" There are hundreds and thousands of compounds. H2O (water), H2SO4 (sulfuric acid), NaNO3 (sodium nitrate)... But there are thousands....