Plz help asap A sample of gas occupies 129 mL at 1.67 atm and 291 K. The volume is
changed to 278 mL and the pressure is changed to 2.96 atm. What is the
new temperature in Kelvin?
A. -237 K
B. 265 K
C. 872 K
D. 1112K

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Which of the following are correct values for the ideal gas laws constant r

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.