a hot air balloon hovers in space at an altitude of 400m. the air pressure is 0.95atm and the envelope holds 2,000,000L of air. How many moles of gas does it hold at 18 degrees celsius?

In this synthesis reaction what products will form

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.