How many molecules are in 0.500 mole of N2O5

If a sample of magnesium atoms has a mass of 36.8 g how many atoms are in the sample

What forms when a humid air mass rises into a cooler temperature area?

What's the empirical formula of 36.48% Na 25.41% S 38.11% O

How do you solve this problem A person accidentally swallows a drop of liquid oxygen O2 (l), which has a density fo 1.149 g/ml. Assumming the drop has a volumeof 0.035ml.

The typical carbon atom is described in the periodic table by the accompanying box. how many neutrons are in a typical carbon atom?

If the theoretical yield of the reaction below corresponds to 25.3 g and the percent yield of the reaction is known to be reproducibly 81.1%, calculate the actual yield. Given: Li2O + H2O → 2 LiOH

A 2.6 kg rat needs to be dosed w / insulin. dosage is 10mg insulin/kg body weight. Given that concentration is 90mg/ml, how many microliters needed to dose rat?

Which is a characteristic of colloids? are homogeneous mixtures have large dispersed particles will settle out over time are made up of at least two substances

4nh3+5o2-->4no+6h20 What is the total number of moles of h2o produced when 12 mole of nh3 is completely consumed?

Select the correct answer. Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this? Is The answer replacement