Chemical equations must be balance because there must be the same number of atoms on both sides of the equation [True/False]
True
Define a mixture
two or more elements together but not chemically bonded.
Which separation technique uses a solvent to dissolve a mixture and absorbent paper to separate it?
Chromatography
Would the separating technique chromatography work with an insoluble mixture?
No, it only works with soluble mixtures
Which separation technique would you use to separate solids from liquids?
Filtration
Would the separation technique filtration work if you were trying to separate salt and water?
No, both the water and dissolved salt would pass through the filter.
Which filtration technique could you use to separate water and salt, if you did not want to collect the water?
Evaporation
Which separation technique could you use to separate salt and water, if you wanted to collect the water?
Distillation
What is the separation technique used to separate crude oil into its fractions?
Fractional distillation
Which materials are good conductors [Metal / Non metal]
Metal
Which materials are strong and malleable [Metal / Non metal]
metals
Which materials are dull brittle and not always solid at room temp [Metal / Non metal]
non metal
Whos model of the atom described atoms as solid spheres?
John Dalton
Which model of the atom is this?
Plum pudding
Which model of the atom is this?
Rutherford or Nuclear model of the atom
What is missing from the Rutherford model of the atom?
Protons and neutrons, electrons in shells
