A substance has an extended structure composed of two different elements. The elements are a metal and a nonmetal. Which property would this substance most likely have?
A) can be hammered into sheets
B) has a high melting point
C) does not dissolve in water
D) is a gas at room temperature

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

What are the two major rules associated with polarity

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.