B. An early form of chemistry that people used to try to turn metal.
<h2>answer.</h2>
to remove iodine sublime
to remove sand filter
to remove water evaporate
Explanation:
1. put the mixture in a beaker
2.Heat the mixture using a watch glass filled with cold water, the iodine will sublime at the base of the watch glass.
3.Add water to sand and salt. Stir for salt to diffuse in the water
4.Filter sand from the solution using a filter paper
5.evaporate the remaining water to remain with Salt crystals.
Answer:
di·lu·tion
the action of making a liquid more dilute.
"the milk factor is greatly reduced by dilution"
Answer:
λ = 555.55 nm
Explanation:
the photon energy equation
∴ h = 6.626 E-34 J*s.....Planck's constant
∴ f = 5.4 E14 s-1
⇒ E = (6.626 E-34 J*s)(5.4 E14 s-1) = 3.578 E-19 J
∴ E = hc/λ
⇒ λ = hc/E
∴ c ≅ 3.0 E8 m/s
⇒ λ = ((6.626 E-34 J*s)(3.0 E8 m/s))/(3.578 E-19 J)
⇒ λ = (5.555 E-7 m)×(1 E9 nm/m) = 555.55 nm
