A cylinder with a moveable piston holds 95.0 mL of gas at 25 degrees celcius and a pressure of 744mmHg. What will its volume be if the temperature increases by 45 degrees? How many moles of gas are in the cylinder? assume no leaks.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!