It's only year 11, It's only year 11... It's only year 11, It's only year 11...

C=n/v

distillation:
C1n1=C2n2
v1n1=v2n2

To find the empirical formula, just have the weights of the substances in grams...
divide them by their atomic weights...
then divide all by the smallest number on that line...
then round down/up

change in heat = -mC(change in temp)
the negative doesn't matter when calculating simple (physical) change in heat, but the minus must be used in calculating change in heat of chemical reactions

Ek=mv^2

P=IV

E=Pt or VIt

1/Rtotal = 1/R1 + 1/R2 etc

Newton's 1st Law: Everything stays at a constant velocity unless acted upon by an external force
2nd: F=ma
3rd: Every force has an equal and opposite force

centripetal force: F=mv^2/r

P=mv

I= m(change in v)

W=Fd

Elastic collision: m1u1+m2u2=m1v1+m2v2
Inelastic: m1u1+m2u2=v(m1+m2)

the specific heat capacity of water is 4.18 J

All nitrates and Chlorides are soluble

Keplar's Law: T^2 is proportionate to R^3

Inverse Square Law: I1/I2=d2^2/d1^2