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How much potassium nitrate has to dissolve in water to absorb 110 of heat?
what mass of limestone must have dissolved if 3.05x10^10 kg of calcium hydrogen carbonate was produced? CaCO3(S)+H2CO3(aq)->Ca(HCO3)2(aq)
What are the three major steps involved in extraction of a metal after its ore is mined?
Calculate the mass, in grams for a gold sample that absorbs 225 J to change its temperature from 15 Celsius to 47 degrees celsius.
Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB. A bag contains a mixture of copper and lead BBs
Compute how many titanium atoms are there in 24.1 grams of titanium and also determine what is the mass in grams of 3.23E+23 atoms of titanium.
Zinc citrate (Zn_3(C_6H_5O_7)_2) is an ingredient in toothpaste. It is synthesized by the reaction of zinc carbonate with citric acid. 3ZnCO_3(s) + 2C_6H_8O_7(aq) ---> Zn_3(C_6H_8O_7)_2(aq) + 3H_2O(l) + 3CO_2(g).
A 47 kg sample of water absorbs 388 kj of heat. If the water was initially at 27.6 Celcius, what is its final temperature?
A glass bottle of normal capacity 250 cm^(3) is filled brim full of water at 20 degrees Celsius. If the bottle and contents are heated at 50 degrees Celsius, how much water spills over?
Consider the balanced chemical reaction shown: 4PH^3 (g) + 8O^2 (g) ---> 6H^2O (l) + 1P^4O^10 (s) In a certain experiment, 8.92g of PH^3 reacts with 9.60g of O^2(g)
Write the balanced chemical equation for the combustion of mesitylene. Remember to start with the molecular formula (not the empirical formula).
A solution is prepared by dissolving 0.16 mol of acetic acid and 0.16 mol of ammonium chloride in enough water to make 1.0 { L} of solution. Find the concentration of ammonia in the solution.
The mercury in a 0.7325 gram unknown sample was precipitated with excess par aperiodic acid, H6IO5, according to the following balanced chemical equation:
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