-) In Utah's Arches National Park we can see many interesting shapes like this one. Many different things helped to shape this arch:
earthquakes, rivers, freezing water, and wind. Only one of these made the surface of the arch smooth and rounded. That was
A)
earthquakes.
B)
strong winds.
C)
water freezing in the cracks.
D)
a river running through the rocks.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction