1. A solution is composed mainly of solvent and ________ dissolved in it. a. water b. solute c. acid d. base 2. If a mixture exists in two or more phases, it is most likely to be a. heterogeneous b. homogeneous c. saturated d. unsaturated 3. Twenty grams of iodized salt and rock salt were dissolved in two different beakers with water at the same temperature. Which will dissolve first? a. Iodized salt because the particles are small. b. Rock salt because the particles are large. c. Both will dissolve at the same time because both are water soluble. d. Neither will dissolve in water. 4. Catherine had her friends over her home one weekend. She prepared snacks for them to share as they hung out in her place. She noticed that there were undissolved particles of iced tea at the bottom of her pitcher. Why did this happen? a. There was too much water in her pitcher and the solution was saturated. b. There was too little water in her pitcher and the solution was unsaturated. c. There was too little water in her pitcher and the solution was saturated. d. The water and iced tea were in equal amounts and the solution was saturated. 5. Rousanne observed that when another 200 g of flour was added in the solution , the additional flour was not dissolved completely and settled. Determine if the given solution are either saturated or unsaturated. a. saturated b. supersaturated c. unsaturated d. concentrated 6. What is the formula needed to solve for the Percentage by Mass? a. % m/m = _mass of solute_ x 100% c. % v/v = _mass of solute_ x 100% mass of solution mass of solution b. % m/m = _mass of solute_ x 100% d. % v/v = _mass of solute_ x 100% mass of solvent mass of solvent 7. __________ is the volume of the solute divided by the total volume of the solution times 100. a. Mass of Solution c. Volume of Solution b. Percentage by Mass d. Percentage by Volume 8. What is the formula needed to solve for the Volume of the Solution? a. Volume of solution = mass of solute + mass of solvent c. Volume of solution = volume of solute + volume of solvent b. Mass of solution = mass of solute + mass of solvent d. Mass of solution = volume of solute + volume of solvent 9. Supposing 50 mL of oil was mixed with 150 mL of water, what will be the resulting mixture? a. A 200mL homogeneous mixture b. A 200 mL semi-heterogeneous mixture c. A 50% water and 50% oil mixture d. A heterogeneous mixture of water and oil 10. When the mass of the solute and mass of solvent are given in the problem but the mass of solution is not included, you have to ___. a. combine the volume of solute and volume of solvent b. combine the mass of solute and mass of solvent c. divide the mass of solute and mass of solvent d. divide the volume of solute and volume of solvent For #11-12 A solution is prepared by mixing 30 g of sugar and 200 g of water. Compute for the concentration of the solute in % by mass. 11. What is the mass of the solute? a. 30 g b. 70 g c. 170 g d. 200 g 12. What is the mass of the solvent? a. 30 g b. 70 g c. 170 g d. 200 g 13. Which is the correct pattern when solving problem using the G-R-E-S-A Method? a. Problem – Data – Hypothesis – Experimentation – Conclusion b. Gather – Results – Evaluate – Solve – Answer c. What is given – What is missing – What is the hidden question – What is the operation to be used – What is the final answer d. Given – Required – Equation – Solution - Answer 14. Assess the following materials given below. Choose the correct answer if the results can be identified as unsaturated solution. 1. A 500 g of flour completely dissolved in 1 liter of water 4. One pack of gelatin powder completely dissolved in 400 g water 2. When another 200 g of flour was added in the solution, the additional flour was not dissolved completely and settled. 5. The milk powder cannot dissolved anymore in a cup of water. 3. The solutions cannot hold any more solute when added in the solution. 1, 4 b. 2, 3 c. 2, 5 d. 1, 3 15. Find the concentration of soy sauce in a 50 ml soy sauce-vinegar solution of equal amounts. Show your solution using the GRESA Method below. ​