Two chemical companies can supply a raw material. the concentration of a particular element in this material is important. the mean concentration for both suppliers is the same, but you suspect that the variability in concentration may differ for the two companies. the standard deviation of concentration in a random sample of n1 = 10 batches produced by company 1 is s1 = 4.7 grams per liter, and for company 2, a random sample of n2 = 16 batches yields s2 = 5.8 grams per liter. is there sufficient evidence to conclude that the two population variances differ? use α = 0.05.

a non redox reaction occurs when there is not a transfer of electrons. for redox reactions, which are reduction-oxidation reactions, a change in the oxidation number occurs. elements that are reduced gain electrons, and elements that are oxidized lose electrons.

explanation:

s too much pool water may lead to chlorine poisoning. the concentration of chlorine in public drinking water is extremely low and not harmful to human health. sooo yeahh

explanation:

the answer for sodium is 0.186

the answer for rubidium is 0.251

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons