Which of the following elements will not form a polar covalent bond with oxygen? A. Hydrogen
B. Sodium
C. Oxygen
D. Fluorine

If a || b and e || f, what is the value of y ?

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6