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1.) Balance the following molecular equations for these reactions.
2.) Write the ionic equation for the reactions
3.) Write the net ionic equations for the reactions
A.) LA2(CO3)3 (s)+HCL (aq)= LaCl3 (aq) + CO2 (g) + H20
B.) K2S2 (aq)+ Bi(NO3)3 (aq) = Bi2S2 (s) + KNo3 (aq)
How to Name and Define Acids, How can you know that HNO3 is nitric acid and HNO2 is nitrous acid? How do you know the difference in endings?
Determine the new temperature and express your answer in degrees celsius,?
A sample of nitrogen gas is contained in a pistol with a freely moving cylinder. At 0.0 C , the volume of the gas is 375 ml. To what temperature must the gas be heated to occupy a volume of 500.0ml
Find the concentration and pH solution - What is the pH of a solution of 0.65 M acid and 0.51 M of its conjugate base if the pKa = 5.30?
A water skier is pulled by a net force of 135 N and has an acceleration of 1.8 m/s2. What is the mass of the skier.
Calcium carbonate reacts with dilute hydrochloric acid to produce the gas carbon dioxide. Write a symbol equation for the reaction.
Pyridine(C5H5N) is a weaker base in H2O than 2,6 lutidine (dimethylpyridine), but we observe that the pyridine-BF3 complex is more stable than the comparable lutidine-BF3. Explain the reason for this inversion in stabilities.
water has a molar heat of vaporization =40.79 kJ/mol, determine how many grams of water could be vaporized by 0.806 kilo Joules heat? Express your answer in units of g
When 1 mol of H2O and 1 mol of CO are placed in an empty 1L reaction vessel at 959K, the equilibrium mixture containes 0.422 mol of water vapor. Find Kc at 959K if the equation is: H2O(g) + CO(g) H2(g) + CO2(g)
Calculate the pH during the titration of 50.00 ml of 0.0500 M NaOH with 0.1000 M CH3CO2H after the addition of the following volumes
What will be the molarity of a compound (1 litre) with a molecular weight of 169 and purity as 41%.
The molar mass of the substance was found to be about 300g/mol. what is the molecular formula of the unknown powder? was the substance cocaine?
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