The characteristics of two different types of reactions are shown below: Reaction A: Protons are gained or lost by the atom of an element. Reaction B: Electrons are lost by the atoms of an element.

Which statement is true about the two reactions?

Valence electrons are not involved in both Reaction A and Reaction B.

Valence electrons are involved in Reaction B but not in Reaction A.

Valence electrons are involved in both Reaction A and Reaction B.

Valence electrons are involved in Reaction A but not in Reaction B.

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

‘which reaction would most likely require the use of an inert electrode?

What are the two largest greenhouse gases