It takes 1 minute for a certain amount of potassium phosphate (KH2PO4) to dissolve in 100 grams of water at 50 °C. Which of the following will most likely happen if the same sample of potassium phosphate is dissolved in 100 grams of water at 20 °C?

The sample will dissolve in exactly 1 minute.
The sample will dissolve in more than 1 minute.
The collision between particles of the sample will increase.
The collision between particles of the sample will remain constant.

The boiling point of liquids is very high what does it indicate

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.