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For the next two questions, use the following list of ions: Ca2+, HCO31-, Mg2+, PO43-, Pb4+ Which ion primarily causes temporary water hardness? [bicarb1] Which ions primarily cause permanent water hardness? [calcium1] [magnesium1]

C) How many moles of ammonia are needed to completely react with the Cu2+ in part B?

A) The color of the solution before the solution is at the endpoint was [pink1]? B) The color of the solution at the endpoint was [blue1]?

In the experiment “Neutralizing Capacity of an Antacid”, it took 6.40 mL of 0.100 M NaOH to back titrate 25.00 mL of 0.100 M HCl in which a 0.50 g antacid tablets was dissolved. Use this information for questions A and B that follow.    Show all work or maximum points will not be awarded. Make sure all answers are in the correct number of significant figures.

The C:N and N:P ratios are important properties of organic amendments and crop residues. (10 pts) Describe what should happen to N in amendments when the C:N ratio is 8:1 vs. 45:1, and a representative example of an organic amendment or a crop residue for each of these two ratios. (10 pts) Describe how the N:P ratio in amendments differs from the N:P of crop removal, and the two possibilities in terms of meeting crop N and P demand when fertilizing exclusively with organic amendments (note: you cannot meet both crop N and P demand exactly when using only organic amendments, so one of the two nutrients will be off when you meet the demand of the other nutrient).

(10 pts) You have lost the liming recommendations sent to you by the soil laboratory, but you do recall that 5 tons of CaCO3 were recommended per hectare for field B. Because the pH measured in water is the same in both fields, you apply 5 tons to field A as well. Have you acted wisely? Why or why not? (10 pts) Adding lime will also increase % base saturation. A grower indicated that adding gypsum to field B will do the same thing to its properties and fertility at half the cost as adding lime. What would you advise that grower and why?

Identify the culturally important site seen here, name the culture it is associated with, and explain its significance. 

Identify the cultural artifact seen here.  Give the location and specific culture it is associated with.

Name the site seen here, give its location, and name what culture it is associated with. 

Name the site seen here, give its location, and name what culture it is associated with…specifically the hill and the building on top of the hill.