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Write balanced chemical equations for each of the following reactions omitting (where relevant) all spectator species(please explain for me how u get the answer, im new in chemistry and its very hard for me)
a) Lead(II) nitrate solution is mixed with sodium iodide solution producing a bright yellow precipitate
b) Potassium carbonate solution reacts with hydrochloric acid solution producing a colourless gas
c) Acetone (C3H6O) burns with oxygen producing carbon dioxide and water only
d) Solid calcium nitrite is decomposed by heating, producing calcium oxide, nitrogen monoxide and nitrogen dioxide
How many milliliters of 1.00 M KOH should be added to 100 mL of solution containing 10.0 g of histidine hydrochloride
A jogger runs at an average speed of 5.9 mi/h. a. How fast is she running in m/s? b. How many kilometers does she run in 98 min?
The pH of an aqueous solution containing only a monoprotic weak acid has a pH of 4.1. What is the concentration of hydronium ion, H3O+, in the solution? (a)2 x 10?3 M (b)2 x 10?4 M (c)8 x 10?4 M (d)8 x 10?5 M (e)0.61 M
The following choices list some common laboratory solvents. In which of these solvents would LiCl be the LEAST soluble
What is the frequency of ultraviolet light with wavelength 2.51 × 10-8 m? (c = 3.00 × 108 m/s)
Compare the amount of cooling experienced by an individual who drinks 400mL of water (0 degrees C) with the amount of cooling experienced by an individual who sweats out 400 mL of water at 37 degrees Celsius. Assume all sweat evaporates.
Using basic knowledge of Maxwell relations and such, can you derive a thermodynamic equation of state that can allow for the easy evaluation of this parameter
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
The standard enthalpy change for the reaction below is -905.4 kJ (for the reaction as written). What is the standard enthalpy of formation of NO(g)
One of the requirements for a Primary Standard is a high molecular weight. Why is this a requirement for a substance to qualify as a Primary Standard.
calculate the minimum number of grams of propane that must be combusted to provide the energy necessary to convert 5.35 of ice at -21.5 to liquid water at 76.0.
Calculate the mass in grams of copper initially present in the penny based on the concentration of copper in the sample, the total volume of the sample, the dilutions to the original stock, and the molar mass of copper.
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