if anyone can help I have an exam tonight (7pm), and this is part of the review!

Question

if anyone can help I have an exam tonight (7pm), and this is part of the review!

search- Shwe Mere>> 13) Binary hydrides can be dlassified as covalent, sansic, or metallic. Nall, HCl and N113 are 13) classified as and binary hydrides, respectively 14) Anhydrouss magnesium sulfate can be used as a drying agent to remove moisture from the 14) atmosphere. If the only product of this reaction is magnesium saltate heptahydrate, how many grams of water can be removed by 0.500 kg of magnesium stalf ate? 15) A reaction ocaars wihen 0.2105 g of CaHz is dissolved in enough water to make 250 ml. of 15) solution will generateb solution will generate liters of hydrogen gas at 0.972 atm and 21-C 16) Man-grousp elements are those elements in groups- through of the 16) periodic table. 17) The oxidation numbers of nitrogen in NH4NO3 are and is) [ColNH35NCSP+ and ICo(NH35SCN)2" are examples of 19) The formula for tetraammunedich orodromournam chloride is 20) Mn2-has 17) isomers. 18) 19) . d electrons. 20)

Explanation / Answer

13. NaH - Ionic Hydride; NH3, HCl - Covalent Hydride

16. Main group elements are those elements in groups 1 and 2 (s-block) through 13 to 18 (p-block) of the periodic table.

17. N in NH4+ is -3, H is +1for each of 4 or +4

The N in NO3+ is +5, O is -2 for each of 3 or -6

18. [Co(NH3)5NCS]2+ and [Co(NH3)5SCN]2+ are examples of Structural isomers.

19. The formula for teteaamminedichlorochromium(III)chloride is [Cr(NH3)4Cl2]Cl.

20. Mn2+ has 5 d electrons.

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