Which element has a radioactive isotope that is often used to date rocks younger than about 60,000 years?

a. uranium
b. rubidium
c. carbon
d. strontium

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.