Which 2 basic quantities provide the unit for speed?

What is the atomic number of an atom that has 6 protons

What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms