Chemistry, 06.07.2019 13:30, tynitenaire
With these two. in the nucleus of an atom, there are 20 protons and 21 neutrons. what are the atomic number and mass number of this isotope? study the electron dot diagrams. which two elements are most likely to react and form a compound? what type of compound are they likely to form? here's the link for the second one.
Answers: 1
Chemistry, 22.06.2019 19:30, gracieisweird12
Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol
Answers: 3
Chemistry, 22.06.2019 21:50, SoccerAllStar2
Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?
Answers: 2
Chemistry, 23.06.2019 00:30, Toyared
Many bird species build nests in which they raise their offspring. one of these species is known as the magnolia warbler. breeding pairs of magnolia warblers build nests out of pieces of grass and twigs. the female warbler will then lay her eggs in the nest and sit on the eggs for a few weeks until they hatch. after the offspring have hatched, the female will continue to sit on the newborn chicks to keep them warm. both the male and the female bring food for the offspring to eat until the young are mature enough to find food on their own. which of these most likely describes why birds such as the magnolia warbler build nests in which to raise their offspring? a. nest building decreases the amount of energy used by the parent birds to raise their offspring to adulthood. b. nest building increases the probability that the offspring will survive and eventually produce offspring of their own. c. nest building decreases the amount of food that the offspring require the adult birds to provide. d. nest building increases the probability of the offspring being located by airborne predators.
Answers: 1
With these two. in the nucleus of an atom, there are 20 protons and 21 neutrons. what are the atomi...
Mathematics, 12.08.2020 08:01
Mathematics, 12.08.2020 08:01