An inflatable toy starts with 1.05 moles of air and a volume of 5.17 liters. When fully inflated, the volume is 8.00 liters. If the pressure and temperature inside the toy don’t change, how many moles of air does the toy now contain?

Can someone me with 3 and 4 plz. this is for masteries test.

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

Consider the following multistep reaction: a b→ab(slow) a ab→a2b(fast)−−−−−−−−−−−−−−−−− 2a b→a2b(overall) based on this mechanism, determine the rate law for the overall reaction. express your answer in standard masteringchemistry format. for example, if the rate law is k[a]3[b]2 type k*[a]^3*[b]^2