Answers: 1
![[Ar]4s^{2}3d^{10}4p^{2}](/tpl/images/0088/9680/866a0.png)
shows that 4s shell will be filled first as it has lower energy then 3d shell will be filled as 3d shell has less energy as compared to a 4p shell. Another question on Chemistry
Chemistry, 21.06.2019 14:00
Can you reduce your impairment by drinking coffee or cold showers? true or false?
Answers: 3
Chemistry, 22.06.2019 12:10
Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.
Answers: 1
Chemistry, 22.06.2019 16:00
Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
Answers: 1
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
You know the right answer?
Which of the following is a possible noble gas notation? [ar] 4s24p2 [ar] 3s23p6 [ar] 4s23d104p2 [a...
Questions
Mathematics, 20.07.2019 13:00
Mathematics, 20.07.2019 13:00
Social Studies, 20.07.2019 13:00
Mathematics, 20.07.2019 13:00
History, 20.07.2019 13:00
Advanced Placement (AP), 20.07.2019 13:00
English, 20.07.2019 13:00
Mathematics, 20.07.2019 13:00
Social Studies, 20.07.2019 13:00
