Question 1 a sample of 0.255 mole of gas has a volume of 748 ml at 28°c. calculate the pressure of this gas. (r = 0.0821 l ∙ atm / mol ∙ k) 0.784 atm 8.42 atm 0.00842 atm 7.84 * 10-4 atm none of the above

Why is mercury a good material to use in a thermostat?

Noble gas notation write the electron configuration for the manganese atom

1. What three important things does the blood do as it is circulating through the body? A. supplies the body with oxygen and nutrients, and picks up carbon dioxide wastes B. supplies the body with carbon dioxide and oxygen C.

What is the diffrence between kinetic and potential energy

What element is sometimes found in toothpaste

The combustion of a hydrocarbon X (30 cm3) with 350 cm3 of oxygen at STP resulted in the formation of 440 cm3 of gaseous products.

Which of these is an acid A (Vinegar

How are RNA and DNA used to make proteins? A-RNA has coded instructions for making proteins, and DNA translates the code. B-DNA forms the monomers that make up RNA, and RNA forms the monomers that make up proteins.

The organic compound aldehyde contains which functional group? amide carbonyl carboxyl hydroxyl

Which astronomer supported the belief that earth was at the center of the universe while all other planets and celestial objects orbited around it