idk Flashcards
(11 cards)
1
Q
diffusion
A
net movement of particles from higher concentration gradient to a lower concentration gradient
2
Q
what is a solute?
A
solid that dissolves in a solvent
3
Q
what is a solution?
A
mixture of dissolved solute where the solvent is dissolved in
4
Q
what is the mass of. proton
A
1
5
Q
mass of a neutron
A
1
6
Q
mass of an electron
A
0/ 1:2000 / negligable
7
Q
what is a mixture
A
a group of different/ elements that are not chemically bonded
8
Q
what is a molecule
A
a molecule is a substance that is held by 2 or more atoms helf together by chemical bonds
9
Q
how reactive are alkali metals?
A
very reactive
10
Q
properties of alakli metals
A
soft, shiny, low melting and boiling point
11
Q
A
