At a pressure of 252.3 kPa and a temperature of 421 K, the volume of a gas is 359 cm. At what pressure will the new temperature and volume be
426 K and 830 cm 3?
Help a brother out please

What are the percent by mass of copper in penny lab

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

What is the subscript for oxygen in its molecular formula