A weather balloon contains 59.5 L helum at sea level, where the atmospheric pressurels 101.3 kPa. Meteorologists want the balloon to eat at an altitude of
35,000 m where the pressure is 0.575 kPa. What volume will the balloon have at that altitude?

When the earth was formed and cooled, why did nickel and iron end up in the center of the earth while basalt and granite ended up in the outer layers

Why is permeable soil best for plants that need a lot of drainage?

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams