4. Calculate the Density of a rectangular prism made of metal the dimensions of the prism are 5 cm by 4cm by 5cm. the metal has a mass of 50 grams​

3. if the dartboard below is used to model an atom, which subatomic particles would be located at z?

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?