Questions asked by matt g.

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• A sample of iron that has density of 7.833 g/mL has a mass of 94 g. If the sample is in the shape of a rectangular cube, what is the height of the cube if the top is 2 cm x 3 cm?
  
• What is the empirical formula of a compound that is 26.58% K, 35.35% Cr, and 38.07% O?
  
• I need help with this Chemistry problem, how do I do this?