Answer Happy

I have asked these three before, but don't get the correctanswer. Please only answer if you know the correct answer.
0.664/1 point Question 8 • What is the standard temperature for gases in degrees Celsius (°C) and Kelvin (K)? Enter in this format 50.15, 100.15 without units. Include both numbers to the hundredths place. 0.00, 273.15 • What is the standard pressure for gases in atmospheres (atm)?(enter the number without units and use 2 sig figs) 0.99 • Does every gas calculation with a temperature variable require temperature be given or converted to Kelvin? (yes/no) yes___ • When calculating for changing conditions of a gas using the combined gas law, do the pressure units have to both be in atm? (yes/no) no • When calculating for changing conditions of a gas using the combined gas law, do the volume units have to both be in liters? (yes/no) no____ • When using the ideal gas law equation, do pressure and volume units have to be in atm and L respectively? no
Question 9 0 / 1 point A 12.9 L cylinder contains a sample of gas at 16.5 atm. What pressure would the gas be in a 7.9 L cylinder at this same temperature? Report your answer in atmospheres to the correct number of significant figures. Answer:
Question 10 0/1 point A sample of gas in a 27.7 L container is initially at 15°C and 603 mmHg. If the pressure is reduced to 463 mmHg and the temperature is increased to 77°C, what is the final volume? Add 273 to convert to Kelvin. Report your answer in liters to three significant figures. Answer: