math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
Chemistry
if the yieeld for the following reaction is 85% how many grams of Al2S3 should be used to produce 165 g of Al(OH)3? Al2S3+6H2O-->2Al(OH)3+3H2S
Chemistry
a mixture of 4.00 moles of hydrogen and 3.00 moles of oxygen is ignited, forming water. what is the maximum amount of water in grams that can be formed?
Chemistry
A solution contains 1.50 g of dissolved Pb 2+ ions. How many grams of NaI must be added to the solution to completely precipitate all of the dissolved Pb 2+ as PbI2?
Chemistry
A 1.8 mole sample of a compound weighs 195 g and is found to be 11.18% H and 88.82% C. What is the molecular formula for the compound?
chemistry
sorry convert your 53 grams to kg. because your specific heat capacity is in J per kg this should change your answer
chemistry
q=m*c*change of t m=mass c= specific heat change of t= final temp- initial temp fill in these with your numbers and you should get the answer
Chemistry
A sample of iron ore contains 1.02 x 10^24 Fe atoms and is found to be 69.94% Fe by mass. What is the mass of the sample?
Chemistry
How many moles of O2 are needed for the complete combustion of 3 moles of CH4?
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