4. Just before a thunderstorm, a student fills a balloon with a volume of 22.4 Liters of Helium at temperature of 24.5 °C and 0.97 atm of pressure. Determine how many moles of Helium are contained in the balloon.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

6.4 cm (max) - 25 cm (min)

the pseudoscience are like beliefs, theories, or like practices that are considered scientific

5.6⋅10−^19  j

do you need the explaination?