Combined Gas Law A 7.5L container at a pressure of 200.0kpa and a temp of 45.00C is compressed to 5.0L and cooled to -30.0OC. What is the new pressure?

According to the balanced chemical equation 5 h2c2o4(aq) + 2 mno4-(aq) + 6 h+(aq) → 10 co2(g) + 2 mn2+(aq) + 8 h2o(l) 0.875 grams of oxalic acid, h2c2o4 will react with moles of permanganate, mno4-.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?