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Hydrochloric acid (HCl) reacts with sodium carbonate (Na_2CO_3), forming sodium chloride (NaCl), water (H_2O), and carbon dioxide (CO_2). This equation is balanced as written:2HCl(aq)+Na_2CO_3(aq)---> 2NaCl(aq)+H_2O(l)+CO_2(g)
What volume of 1.25 M HCl in liters is needed to react completely (with nothing left over) with 0.500 L of 0.500 M Na_2CO_3? Express your answer to three significant figures and include the appropriate units.
If 100.0mL water of at 50.0C is added to 100.0 mL of water at 20.0C. What temperature would the mixture of water reach. Assume the system is perfectly sealed and no heat is
Choose all of the processes from below which describe changes which are independent of the path by which the change occurs. the elevation increase experienced by a traveller t
A solution that contains 3.0 x 10^-5 mol of oxalic acid requires 24 drops of permanganate ion solution to reach the endpoint of the titration. What is the chemical amount of
the ratio of the no of molecules in the excited state at the temperature of 213 K to the number of ground state molecules and the percent of the excited molecules at 213 K.?
How many moles is a cube of gold with sides of 2.364 cm? Density of gold is 19.30 g/mL What is the atomic mass of gold?what is the name of the commom laboratory equipment.
Write electron configurations for the following ions, and determine which have noble-gas configurations. Explain your answer. (a) Cr^3+ (b) N ^3- (c) Sc^3+ (d)Cu^2+ (e)TI^+
1. Explain what is happening to electrons when light is emitted in emission spectra. 2. List the possible energy level changes for electrons emitting visible light in the hyd
Problem- An ideal solution is formed from a mixture of the nonvolatile solute urea, CO(NH2)2, and methanol, CH3OH. Calculate the mole fraction of urea that is obtained from
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