Flashcards in Chemistry Deck (26):
Solid to liquid is...
Liquid to solid is...
Liquid to gas is...
Gas to solid is...
Neutral (no charge) - 1 mass unit
+1 charge - 1 mass unit
-1 charge - no mass
Made up of any 1 type of atom
More than 1 type of element, chemically combined together
More than 1 type of element, not chemically joined
A small groups of atoms, you can have a molecule of an element : O2 molecule of a compound - H2O
Something that can be dissolved
Something that cannot dissolve
A technique used to separate a solvent and a solution
A substance that dissolves in another substance
A substance that dissolves a solute
Mixture of the solvent and the solute
1 element or 1 compound
Used to separate mixtures of substances into their components
The furthest the solvent ( the liquid that separates the inks ) can reach
What happens during chromatography?
The solvent soaks up the paper and travels to the ink dots and the ink spreads out, separating the components of the substance
Distance travelled by substance
35 - ???
17 - ???
35 - mass no. (Protons+neutrons)
17 - atomic no. ( electrons / protons )
A variant of a particular chemical element which differ in neutron number
Both isotopes are chlorine because they both contain 17 protons / Electrons. However they are different isotopes because their mass numbers are different.