Place these unknown pH test papers in order from most acidic to most alkaline. .0/msohtmlclip1/01/clip_image001.gif” alt=”Description: four p h indicator strips and a p h color chart”> o A. D C B A o B. B A C D o C. C D A B o D. D C A B A new mild dish detergent is being tested before putting it on the market. If the new detergent were tested with 0-14 pH test paper the test strip would most likely turn what color? .0/msohtmlclip1/01/clip_image002.gif” alt=”Description: four p h indicator strips and a p h color chart”> o A. 2.3 o B. 5.6 o C. 8.2 o D. 13.2 Chemicals in the air can combine with rain to produce acid rain which is harmful to the environment. Which of these is most likely to be the pH of acid rain? o A. 0 o B. 4 o C. 10 o D. 14 Based on the materials measured in the Gizmo what is the most likely pH of apple juice? o A. 0.3 o B. 3.9 o C. 8.4 o D. 11.7 Suppose you have already compared the pH values of two substances using 0-14 paper. When would a follow-up test using 4.5-7.5 paper be most helpful? o A. when both substances had a pH value of about 3 on the 0-14 paper o B. when both substances had a pH value of about 6 on the 0-14 paper o C. when both substances had a pH value of about 9 on the 0-14 paper o D. when one substance had a pH value of about 5 and the other substance had a pH value of about 7 on the 0-14 paper Principio del formulario Place these unknown pH test papers in order from most acidic to most alkaline. .0/msohtmlclip1/01/clip_image003.gif” alt=”Description: four ph indicator strips.”> o A. D A B C o B. B A C D o C. C D A B o D. D B C A A new mild dish detergent is being tested before putting it on the market. If the new detergent were tested with 0–14 pH test paper what color would the indicator paper be most likely to turn? .0/msohtmlclip1/01/clip_image004.gif” alt=”Description: four ph indicator strips.”> o A. Indicator paper A o B. Indicator paper B o C. Indicator paper C o D. Indicator paper D Chemicals in the air can combine with rain to produce acid rain which is harmful to the environment. Which of these is most likely to be the pH of acid rain? o A. 0 o B. 4 o C. 10 o D. 14 Based on the materials measured in the Gizmo what is the most likely pH of apple juice? o A. 0.3 o B. 3.9 o C. 8.4 o D. 11.7 Suppose you have already compared the pH values of two substances using 0–14 paper. When would a follow-up test using 4.5–7.5 paper be most helpful? o A. when both substances had a pH value of about 3 on the 0–14 paper o B. when both substances had a pH value of about 6 on the 0–14 paper o C. when both substances had a pH value of about 9 on the 0–14 paper o D. when one substance had a pH value of about 5 and the other substance had a pH value of about 7 on the 0–14 paper Principio del formulario A normal plant cell holds water in the vacuole of the cell. This large organelle also gives the cell support. Suppose a plant is submerged in salt water. As a result the vacuoles collapse and the leaves wilt. This condition is called plasmolysis. Which explanation do you think best describes what happens to the cells of that plant during plasmolysis? o A. The water diffuses out of the cell to equalize the solute concentrations. o B. The water diffuses into the cell to equalize the solute concentrations. o C. The solute (salt) moves inside the cell to equalize the solute concentrations. o D. The solute (salt) pushes on the vacuole of the plant cell causing it to collapse. The images below show the same cell before and after reaching equilibrium. Which statement best describes what happened as the volume of the cell increased? .0/msohtmlclip1/01/clip_image005.jpg” alt=”Description: a cell before and after equilibrium”> o A. The number of solute particles inside the cell decreased. o B. The number of solute particles outside the cell decreased. o C. The number of solvent particles inside the cell decreased. o D. The number of solvent particles outside the cell decreased. Which of the following bar charts describes a system that is in solution equilibrium? .0/msohtmlclip1/01/clip_image006.gif” alt=”Description: four bar charts”> o A. Graph A o B. Graph B o C. Graph C o D. Graph D Using the information below what will happen to the cell as it reaches equilibrium? .0/msohtmlclip1/01/clip_image007.gif” alt=”Description: chart displaying solute and solvent data”> o A. The cell will get smaller. o B. The cell will get bigger. o C. The cell will stay the same size. o D. The change in cell size cannot be determined. A sample of seaweed contains two liters of water and has 100 grams of salt dissolved in its cells. The seaweed is placed in a bucket with 4 liters of water and 300 grams of dissolved salt. What will occur when the system reaches equilibrium? o A. The seaweed will absorb 40 grams of salt. o B. The seaweed will lose 0.5 liters of water. o C. The seaweed will absorb 1.0 liters of water. o D. The seaweed will absorb 5.5 liters of water. Principio del formulario In the system shown below there are 80 xparticles all in region A (the left half of the box). No extra particles can enter the system. When the system is in equilibrium what will be true of the particles? .0/msohtmlclip1/01/clip_image008.jpg” alt=”Description: 80 particles all in the left half of a box”> o A. Since there are no yparticles the system is already in equilibrium with all 80 xparticles in A. o B. Due to the constant motion of particles this system will never reach equilibrium. o C. In equilibrium there will be exactly 40 xparticles in A and 40 xparticles in B and those numbers will remain constant. o D. In equilibrium there will be approximately 40 xparticles in A and 40 xparticles in B and those numbers will fluctuate but will remain near 40. The bar chart below shows data for a system with two types of particles xand y in two connected regions A and B. All of the xparticles started in region A and all of the yparticles started in region B. Which line graph best depicts the data in the bar chart? .0/msohtmlclip1/01/clip_image009.gif” alt=”Description: bar chart”> .0/msohtmlclip1/01/clip_image010.gif” alt=”Description: four line graphs”> o A. Graph A o B. Graph B o C. Graph C o D. Graph D Which arrangement of Gizmo settings will produce the highest rate of diffusion? .0/msohtmlclip1/01/clip_image011.gif” alt=”Description: four images of the five sliders for the diffusion gizmo”> o A. the settings shown in A o B. the settings shown in B o C. the settings shown in C o D. the settings shown in D Which statement most accurately describes the system of particles represented in the following bar chart? .0/msohtmlclip1/01/clip_image012.gif” alt=”Description: bar graph depicting two particles in a stage of diffusion”> o A. In equilibrium with an equal number of xand yparticles o B. In equilibrium with more yparticles than xparticles o C. Not in equilibrium with an equal number of xand yparticles o D. Not in equilibrium with more yparticles than xparticles Your lungs are constantly exchanging oxygen and carbon dioxide between your body cells and your blood cells by diffusion. As you exercise intensely your body temperature increases slightly. How does this affect the process of diffusion? o A. The rate of diffusion increases due to your slightly higher body temperature. o B. The rate of diffusion decreases due to your slightly higher body temperature. o C. The rate of diffusion is unaffected by changes in temperature. o D. Diffusion stops completely during periods of over-exertion. Check Your Answers .explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=417&ClassID=2535055#affixedBarWrap”> View Gizmo Final del formulario Final del formulario Final del formulario
