- Can zinc be hard chrome plated?

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Is three days enough to study for a calculous test? How many moles of ions are in a solution of 7.4 moles FeCI3 in 500 mL water? If I save 300 dollars every 2 weeks for 6months how much will I have? Multiply matrices A and B of any sizes legally (no size compatibility requirment). What kind of matrix multiplication am I? Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons?