Where in the atom are the protons? Charge?
nucleus/positive charge
Where in the atom are the electrons? Charge?
the energy levels/negative charge
What are ions?
an atom or all group of atoms that has an electric charge
What are ionic bonds?
attraction of oppositely charged ions that transfer electrons from one atom to another.
What are covalent bonds?
They are atoms that bond together and each others electron and proton share
Why is water a polar molecule?
The electrons are attracted to the oxygen atom end more than the hydrogen
What is surface tension?
The property of a liquids surface that resists the external force of breaking and tight packed molecules together
Why do some polar molecules evaporate at a lower temperature than water?
They do not attract to one another as strong as water molecules do
How does salt dissolve in water?
Water molecules pull the sodium ad chloride ions apart and breaks down the ionic bond that held them together.
What is a solute? What is a solvent?
A solute is the thing that is being broken down like salt and the solvent is the thing that breaks the other thing down.
What is solubility?
The ability of one substance to break one thing down.
Why can’t some liquids or solids dissolve in water?
Water molecules are not attracted to everything.
How does temperature affect the solubility of solids?
It increases the solubility of the solute.
How does temperature affect the solubility of gases?
A gas can become less soluble when the temperature increases
What does endothermic mean?
Taking more energy to solve or break down a substance
