To save time you can approximate the initial volume of water to ±1 ml and the initial mass of the solid to ±1 g. for example, if you are asked to add 23 ml of water, add between 22 ml and 24 ml. which metals in each of the following sets will have equal density?
(a) 20.2 g gold placed in 21.6 ml of water and 12.0 g copper placed in 21.6 ml of water.
(b) 20.2 g silver placed in 21.6 ml of water and 12.0 g silver placed in 21.6 ml of water.
(c)15.2 g copper placed in 21.6 ml of water and 50.0 g copper placed in 23.4 ml of water.
(d) 15.4 g gold placed in 20.0 ml of water and 15.7 g silver placed in 20.0 ml of water.
(e) 20.2 g silver placed in 21.6 ml of water and 20.2 g copper placed in 21.6 ml of water.
(f) 11.2 g gold placed in 21.6 ml of water and 14.9 g gold placed in 23.4 ml of water.

In which chemical equation, which symbol should be used to indicate that substance is in solution?

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.