CHEm
Introduction
• Element-A substance containing atoms which all have the same
atomic number
• Compound -: matter composed of atoms of 2 or more elements
chemically combined. Simplest unit is molecule
• Ion- an electrically charged particle obtained from an atom or a chemically bonded group of
atoms by adding or removing electrons
• Atomic mass- average mass of all isotopes of sub
•
•
• Float- substance in liquid that is denser
• Empirical- emperor-boss-simplest formula
• C-D- v halved
pressure doubles
• C-A- v double
p halved
ss
• Temp change to get C-B
+by 1.5K
• X 2 all moles of gas. Factor of volume change?
p same(piston moves) volume prop to no. moles= +no. moles by 2- volume + by x2
,
,
,
Introduction
• Element-A substance containing atoms which all have the same
atomic number
• Compound -: matter composed of atoms of 2 or more elements
chemically combined. Simplest unit is molecule
• Ion- an electrically charged particle obtained from an atom or a chemically bonded group of
atoms by adding or removing electrons
• Atomic mass- average mass of all isotopes of sub
•
•
• Float- substance in liquid that is denser
• Empirical- emperor-boss-simplest formula
• C-D- v halved
pressure doubles
• C-A- v double
p halved
ss
• Temp change to get C-B
+by 1.5K
• X 2 all moles of gas. Factor of volume change?
p same(piston moves) volume prop to no. moles= +no. moles by 2- volume + by x2
,
,
,
