Hydrogen burns exothermically in oxygen What is the energy given out during the reaction: 2H2 + O2 -> 2H2O?

Given:
H-H bond: 436 kJ/mol
O=O double bond: 498 kJ/mol
O-H bond: 464 kJ/mol

A. -3226 kJ/mol
B. -884 kJ/mol
C. -486 kJ/mol
D. -442 kJ/mol​

In which phase(s) do the molecules take the shape of the container?

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3