2h2 + o2 → 2h2o if 720.8 g of water are produced from the reaction, calculate the following: moles of h2: moles of o2: grams of o2: ***i am in urgent need of ***

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon