Imagine that you mix 50g of a solute with 100g of water at 40 degrees celsius .
classify each solute by whether it would completely or partially dissolve under these conditions.

nano3, k2cr2o7, kcl, kclo3, kno3

NaNO₃ It will completely dissolve

K₂Cr₂O₇ It will partially dissolve

KCl It will partially dissolve

KClO₃ It will partially dissolve

KNO₃ It will completely dissolve

Explanation:

To know if a certain amount of solute will dissolve we need to consider its solubility, which is the maximum amount of solute that can be dissolved in 100 g of solvent at a certain temperature.

Imagine that you mix 50g of a solute with 100g of water at 40 °C.

Classify each solute by whether it would completely or partially dissolve under these conditions.

NaNO₃. The solubility of NaNO₃ at 40°C is 102 g NaNO₃/100 g H₂O. It will completely dissolve.

K₂Cr₂O₇. The solubility of K₂Cr₂O₇ at 40°C is 26.3 g K₂Cr₂O₇/100 g H₂O. 26.3 g will dissolve and 50 g - 26.3 g = 23.7 g will precipitate. It will partially dissolve.

KCl. The solubility of KCl at 40°C is 40.1 g KCl/100 g H₂O. 40.1 g will dissolve and 50 g - 40.1 g = 9.9 g will precipitate. It will partially dissolve.

KClO₃. The solubility of KClO₃ at 40°C is 13.9 g KClO₃/100 g H₂O. 13.9 g will dissolve and 50 g - 13.9 g = 36.1 g will precipitate. It will partially dissolve.

KNO₃. The solubility of KNO₃ at 40°C is 63.9 g KNO₃/100 g H₂O. It will completely dissolve.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.