A sample of phosphorus tri chloride has at STP occupies a volume of 12.3L. How many miles is the sample?

At which temperature and pressure would a sample of helium behave most like an ideal gas?

Explain why glacial deposits have been found in Africa?

Which of the following elements is the most metallic? a. K b. KR c. FE d. CU

Consider this reaction: Zn (s) + 2HCl (aq) ZnCl2 (aq) + H2 (g). Which change could decrease the rate of production of ZnCl2?

3) The ozone layer in the stratosphere protects Earth from the sun's ultraviolet radiation. Where does the ozone come from? A) The ozone is released from the oceans as part of the carbon cycle.

Convert 1.67 x10^24 atoms of carbon to moles of carbon

The knowledge of chemistry not important in one of the following? A, in agriculture B, in Geology C, in medicine D, none

Which is the balanced equation for: Al2O3 + Fe - Fe3O4 + AL

Why are lab apparatus made of ceramics

The volume of oxygen required for complete combustionof a mixture of 5 cm3 of ch4 and5 cm3 c2h4