Timbs

This page lists questions and answers that were posted by visitors named Timbs.

Questions

The following questions were asked by visitors named Timbs.

During the combustion of 5.00 g of octane, C8H18, 239.5 kcal (1002 kJ) is released. Balanced equation: 2C8H18+25O2→16CO2+18H2O 1)How many kilocalories are released by the combustion of 17.7 g of C8H18 ? 2)How many moles of octane must be burned to release...
4 years ago
If 0.04 moles of NaOH is added to this buffer solution, what will be the molarity of HNO2?
3 years ago
An open box has a rectangular base and its height is equal to the length of the shortest side of the base. What dimensions give a volume of 250 cubic centimeters using 200 square centimeters of​ material?
3 years ago
A rectangular piece of​ cardboard, whose area is 323 square​ inches, is made into an open box by cutting a 2​-inch square from each corner and turning up the sides. If the box is to have a volume of 390 cubic​ inches, what size cardboard should you start​...
3 years ago
Determine if the following variable types are CONTINUOUS, DISCRETE, NOMINAL, ORDINAL, or an IDENTIFIER: The color choices of paper Social Security number
3 years ago
Q1) The life of an Appex brand battery is 500 days with a standard deviation of 12 days. What percent of values are between 488 and 524? Q2)The life of an Appex brand battery is 500 days with a standard deviation of 12 days. What percent of values are les...
3 years ago
1) A bag contains different colored balls; 7 yellow, 3 red, and 6 green. I randomly select one ball, note its color, put it back in the bag, and select another ball. What is the probability that both balls are green, P(GG)? A).775 B).15 C).75 D).1406 2) A...
3 years ago

Answers

The following answers were posted by visitors named Timbs.