Chemistry, 15.01.2021 21:00 lucilita2017
Please help I will give brainlest 5 star and thanks
In this task, you’ll design and build a prototype of the cold pack. The cold pack will allow the user to start a chemical reaction that absorbs energy. The reaction involves mixing powders from two compartments with water.
Estimated time to complete: 2 hours
You will need these materials:
safety goggles
1 toilet paper tube or a small rectangular box (depends on cold pack compartment shape from Task 2)
scrap cardboard of different thicknesses, such as cereal boxes, tagboard, and shipping boxes
scrap paper
scissors
glue
tape
thread or string
paper clips
plastic produce bag or similar
½-cup measuring cup
1-teaspoon measuring spoon
4 teaspoons baking soda
water
Note: You may not use all of the materials, and you may need to gather more materials when you build your prototype.
Stay safe! Always wear your safety goggles. Be careful while handling sharp objects.
Part A
Identify the problem that the cold pack must address.
Criteria are the specific goals of the design. List at least two criteria for the design based on the question, What do you want it to do? Keep in mind the design of the cup and what you learned from observing the endothermic chemical reaction.
Answers: 1
Chemistry, 22.06.2019 05:30
Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
Answers: 3
Chemistry, 22.06.2019 09:50
What are four significant sources of ghgs that come from wostem washington?
Answers: 2
Chemistry, 22.06.2019 16:30
At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?
Answers: 1
Please help I will give brainlest 5 star and thanks
In this task, you’ll design and build a prototy...
History, 21.12.2019 18:31
Mathematics, 21.12.2019 18:31
Computers and Technology, 21.12.2019 18:31
History, 21.12.2019 18:31
History, 21.12.2019 18:31
English, 21.12.2019 18:31
Biology, 21.12.2019 18:31
History, 21.12.2019 18:31
Social Studies, 21.12.2019 18:31
History, 21.12.2019 18:31