SC.8.N.1.1 A scientist wanted to determine how temperature effects the solubility of KNO3 in 100 g. of water. Solid KNO3 was added to a beaker filled with 100g of water at 10oC. The beaker was stirred at the same rate until all the solid dissolved. The total amount of KNO3 that was dissolved was 22 g. The scientist repeated the experiment with 100 g. of water at 30oC and 50oC. When the temperature was 30oC, 48 g. of KNO3 was dissolved and when the temperature of the water was 50oC, 84 g. of KNO3 was dissolved. Which of the following is the best conclusion for this experiment?

Group of answer choices

As the concentration of KNO3 increases, more will dissolve in water

As the temperature of water increases, more KNO3 will dissolve

As more of a substance is dissolved in water, the temperature will increase

As the temperature of KNO3 increases, more of a substance will dissolve

Which statement is best described as a atom

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false