A chemist adds 240.0mL of a 1.5 x 10^-4 mol/L magnesium flouride (MgF2) solution to a reaction flask. Calculate the micromoles of magnesium fluoride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

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What are the major types of a chemical compound

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.