subject
Chemistry, 14.12.2020 08:20 priarm8799

Many elements in the third row and beyond in the periodic table may form more than four bonds and thus appear to have “expanded octets." Phosphorus and sulfur, for example, may form five and six covalent bonds, respectively Count up the total number of valence electrons in PCl5, and draw its Lewis structure. How many valence electrons are "counted” toward the central P atom?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 18:30
How much energy moves onto the next level, in an energy pyramid
Answers: 1
question
Chemistry, 22.06.2019 01:20
1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.
Answers: 2
question
Chemistry, 22.06.2019 10:00
Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this
Answers: 3
question
Chemistry, 22.06.2019 12:00
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?
Answers: 2
You know the right answer?
Many elements in the third row and beyond in the periodic table may form more than four bonds and th...
Questions
question
Mathematics, 10.03.2021 17:30
question
Mathematics, 10.03.2021 17:30
Questions on the website: 13722363