chemistry
what does Planck mean when he states that energy is quantized?
algebra
what are the steps of solving (4sqr(41))^2 the answer is 656 but i need to know how the got the answer
Chemistry
It's Nitrogen due to the s²p³ would land straight with Nitrogen's family.
Chemistry
Which element is located in the family represented by ns²np³? A) Ti B) Se C) AS D) I E) Sb
Chemistry
Which statement concerning the electrons surrounding the nucleus of an atom is NOT correct? a) When 2 electrons pair together, they have opposite spins. b) The number of the electrons in an isolated neural atom is equal to the atomic number c) The second main energy level can ...
Chemistry
Is the final answer like 662482.4741?
Chemistry
I think pw = pennyweight and pk is peck.
Chemistry
Calculate the density of a substance in pennyweights per peck that has a volume of 0.371 hogsheads and a mass of 41.6 kg. 1 pennyweight = 1.55 grams 1 hogshead = 238.5 liters 1 peck = 9.091 liters. Answer in units of pw/pk.
Math
Let f(x) = 2x-1 and g(x) = 4-x. Find all values of x for which f(x) < -1 or g(x) <3. solution set in interval notation.
statistics
Thomas needs a b in his class. his current test scores are 88, 83, 86 and 72. his final exam is worth 3 test scores. In order to ear a b Thomas average must lie between 80 and 89 inclusive. what range of scores can Thomas receive on the final to earn a b in the class?
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