Hf
26 = 3b - 2 - 7b 28 = -4b b = -7
b + 17 = 43 Subtract '17' from both sides b + 17 - 17 = 43 - 17 b = 26
2a. (a, b and c are all equal.)
If a equals 3 and b equals minus 5 then a minus b equals what
w = hf - E
a=b=3.60555
hf is the energy of photons incident on the surface
False : Cos B = 16.67/24 = 0.6946 : Therefore angle B = 46° (not 26°).
2b-6=20 2b=26 b=26/2 b=13
that depends on what the value of c is.
Hf, reactants > Hf, products apex
HAZY is one such.
Hf
3
apexvs answer 3.4 x 10-5
MAKE