If a reactant has a -1 order, what happens to the initial rate when the concentration of that reactant increases by a factor of two?

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.

Identify the missing coefficient in the balanced equation and classify the type of reaction. mg(oh)2 + h2so4 ⟶ mgso4 + 1; combustion 1; neutralization 2; combustion 2; neutralization

The pressure of 2.73 mol of an ideal gas in an enclosed rigid container at 20.3° c is 153kpa. what is the volume of the container in liters? (r 8.31 l-kpa/mol-k)