D 2.88 g 17. Elements X and Y react to form a covalent compound with formula XY2.
Which of the following is true?
Unsur X dan unsur Y bertindak balas untuk membentuk satu sebatian kovalen dengan
formula XY2
Antara berikut, yang manakah benar?
X²
Electron arrangement of atom X Electron arrangement of atom Y
Susunan elektron atom X
Susunan elektron atom Y
2.8.2
2.8.7
2.4
2.6
A
B
C
2.5
2.7
D
2.1
2.7

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.

What is the equation fort the alkaline zinc/manganese dioxide cell. a) anode b)cathode c)overall equations.