Physical Science Lab 5 (2)

Activity B: Rates of diffusion Get the Gizmo ready: Click Reset. Introduction: The Diffusion Gizmo allows you to manipulate five variables: the Wall, the number of x particles in region A, the number of y particles in region B, the temperature, and the Particle mass. Question: How do factors other than temperature affect the rate of diffusion? 1. Choose a variable: Pick a variable to investigate. Which one did you choose? 2. Form hypothesis: How do you think this variable will affect rates of diffusion?

For this question: How SPF blocks UV rays from the Sun Please answers it Try to answer it in a presentation way please Please please please answer as fast as possible please

Posttest Direction. Read the questions carefully. Write the letter of the correct answer. 1. Water exists in three states of matter and continuously moving through a cycle on Earth. At which stage in the water cycle does water transform from a gas to a liquid? a.evaporation c. precipitation b. condensation d. Sublimation 2. Carbon dioxide (CO2) forms when coal burns in the presence of oxygen. Which of the following is the BEST evidence that a chemical reaction occurs when the coal burns? a. Production of mechanical energy c. A new substance is produced b. Production of electricity d. Formation of precipitate 3.Which of these does NOT happen during a chemical change? a. New substances are formed with different chemical properties. b. Attractive force between atoms of molecule formed or break. c. The chemical properties of the substances before and after the reaction are the same d. Energy is always released or absorbed. 4. A granular substance is added to a liquid. Which of the…

Name Date Chapter Performance Task (continued) 8 5. The new pool also needs a cover. Use the Areas of Similar Polygons Theorem to calculate how much material will be required to make the cover for the new pool. 6. A safe amount of chlorine in pools must be strong enough to kill bacteria but not so strong that swimmers' skin and eyes are irritated. Your target is 1 milligram of chlorine per liter of water. a. The Olympic-size pool is 3 meters deep across its entire length. Calculate volume of the pool in both cubic meters and liters (1 cubic meter = 1000 liters). b. How much chlorine (in kilograms) is needed for the Olympic-size pool? c. Explain how you can use similarity to calculate how much chlorine is required for the new pool. d. How much chlorine (in kilograms) is needed for the new pool? Geometry Performance Task 4 Copyright © Big Ideas Learning, LLC All rights reserved.

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Please answer questions 3 and 4 and show work please. Thank you

LAB task can u explain how to do this or can u try to find some info online do

Chemistry Hello! Can you please explain why these answers are wrong? Thank you.

Chapter 8 lab detecting diffusion

Please answer the following question:

Part A incorrect you filled in 4 of 5 blanks incorrectly

How should a volume be read on a buret?    Question 21 options:   Below eye level   Above eye level    At eye level

Answer question 1 please

You were in the middle of a tropical rainforest and it is very humid in the environment. Do you have a glass of pure water that you have left outside for two days. Nothing has come to drink it and it has not rained either for those two days you measure the amount of water in the glass after these two days and it is exactly the same volume that was present two days before answer 22-25

Please correct answer and don't use hand rating

help  please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50

This question has multiple parts. Work all the parts to get the most points. Use the References to access important values if needed for this question. 18 16 14 12 10 8 6 4. Choose the correct relationship for the plot shown above. O a direct proportion O an inverse proportion O linear with a positive slope and nonzero y-intercept O linear with a negative slope and nonzero y-intercept Submit Cengage Learning | Cengage Technical Support MacBook Air DII E5 F6 EZ FA F9 F10 F 2$ & * ) 4 5 6 7 8 * 00