When diluting concentrated acid with water, in addition to gloves to protect your hands, what safety equipment is also called for?

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000