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Ammonia gas and hydrogen chloride gas from solid ammonium chloride. NH3(g),HCl(g) Balanced Equation:

Carbonic acid, H2CO3, decomposes into water and a gas. Write the molecular equation for this decomposition. Remember to include the states of the reactants and products. Carbonic acid is an aqueous solution.

Write the balanced equation of the reaction described below. Include the states (s, l, aq, g) for the reactants and products. When aqueous calcium chloride and sodium phosphate are mixed, solid calcium phosphate and acqueous sodium chloride are produced.

i just don't know where to begin/how a) Write a balanced chemical equation for: potassium carbonate + magnesium chloride b) Write a balanced chemical equation for: sulfuric acid + calcium carbonate c) Write a balanced chemical equation for: sodium sulfate...

In the balanced double replacement reaction of calcium chloride CaCl2 and aluminum sulfate Al2(SO4)3, how many grams of calcium sulfate can be produced if you start the reaction with 4.19 grams of calcium chloride and the reaction goes to completion?

Using the equation 2H2 + O2 ==> 2H2O, determine how many grams of water is produced when 13 moles of oxygen is consumed.

If you have 24.98 grams of P and 74.99 grams of O2, how many moles of each compound do you have present? so I got .805 of P (limiting) and 2.343 O2 (excess) how do i do this step ? If you have 24.98 grams of P and 74.99 grams of O2, how many moles of each...

but that's wrong because sodium is not balanced

but that's my problem I don't know how to get Na balanced

6 mols? so 4.19x6?

19-3+x=5x 16+x=5x 16=4x x=4

13 X 18? 234?

I'm sorry but you've posted a huge number of questions in the last 30 minutes...can't you try some of them yourself?

but my site says that's wrong..

so 4.19/111?

it doesn't. It just tells me to try again.

that answer is also wrong though what am I missing?