AP Chemistry
For the reaction ? N2H4+? O2 →? N2+? H2O , what is the maximum amount of N2 (28.0134 g/mol) which could be formed from 14.75 g of N2H4 (32.0452 g/mol) and 4.31 g of O2 (31.9988 g/mol)? Answer in units of g
AP Chemistry
When 0.055 moles of lead(II) nitrate are dissolved in enough water to make 803 mililiters of solution, what is the molar concentration of nitrate ions? Answer in units of M.
MATH
I don't know but i need help with the same question!!!....... A company sells cardboard that is 9 1/8 mm thick. Write an equation to solve for the number of sheets of cardboard, c, in a pile that is 255 1/2 mm thick. What must be done to both sides to solve the equation?
English
A B B A
Chem 2 Lab
Calculate the volume of a 0.150 M NaOH solution that will be required to neutralize all of the H+ ions in 0.400 grams of phosphoric acid?
Biology
Both, because of the reduction of nitrate to nitrogen gas makes it biological and chemical.
Science
On the second question kidneys secrete H+ ions when the pH becomes too low in the blood so the blood won't become too alkaline.
Chemistry
Consider the reaction CH4+ 2Cl2=CCl4. If .33 moles of CH4 is reacted with 1 mole of Cl2, how much CCl4 is produced?
chemistry
but how do i balcane the charges? i don't understand what to do with them. i know i am supposed to bring them down, but down where?
chemistry
How do you balance a chemical reaction word equation?!
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