37)
taylor’s teacher asked her to prepare dilute sulphuric
acid from concentrated sulphuric acid. what should she
do ?
(a) add water to the acid.
(b) add acid to the water.
(c) add a base to the concentrated acid.
(d) add an alkali to the concentrated acid.

tell me the answer with

Iwill give extra points to who gets this right

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction