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The lattice energy of KF is 794 kJ/mol, and the interionic distance is 269 pm. The Na-F distance in NaF, which has the same structure as KF, is 231 pm.
Which of the following values is the closest approximation of the lattice energy of NaF: 682 kJ/mol, 794 kJ/mol, 924 kJ/mol, 1588 kJ/mol, or 3175 kJ/mol?
Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. (Enter your answers as a comma-separated list. Enter EMPTY for the empty set.)
Probability : Selection Without Replacement and Stirling's Formula, A box contains 3n red balls and 3n white balls. 2n balls are selected at random without replacement, express the probability p
what is the magnitude of the friction force opposing the motion of the block?
A large cube is 2 feet on each edge. How many cubes - one inch on each edge- will it take to fill the large cube? If the base of a triangle is increased by 20% and the altitude to that base is decreased by 40% then by what percent is the area chang..
Suppose that a company has four jobs to be assigned to four workers. The costs, in dollars, of assigning these jobs to these workers are given in Table.
M and N are the midpoints ofSymbol for segment P R.andSymbol for segment Q R.respectively.
Please show each step of your solution and tell me the theorems, definitions, etc. if you use any. Find the errors E_ k and relative errors R_k for the values p1 in parts b) and c).
In a form two class, 5% of the students can play football, ¼ can play volleyball, 0.1 can play basketball and 3/5 can play tennis. Arrange this numbers in descending order.
3. From the 12 male and 9 female sales representatives for an insurance company, a team of 3 men and 4 women will be selected to attend a national conference on insurance fraud.
Find the dimensions giving the minimum surface area, given that the volume is 8 cm3.
The town of Tola has a population of 40,000 and produces 15 tons of garbage each week. Express this information in terms of the function f
Explain why the law of demand applies to food just as it does to other goods and services.
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