Physics
Physics, 10.12.2020 21:20, bobbustery2468

30 points Course Activity: Building a Device that Uses Energy from Chemical Reactions
task 1
Part A
Measure and pour a half cup (8 tablespoons) of tap water into the small container. Measure and record the temperature of the water.
Part B
Add 2 teaspoons of baking soda and 2 teaspoons of citric acid to the foam cup. Add the half cup of water to the cup and stir. Is a chemical reaction taking place? How do you know?
Part C
Measure and record the temperature of the chemical reaction.
Part D
Did the chemical reaction absorb or release energy? How do you know?
Part E
Could this chemical reaction be used for a cold pack? Justify your answer.
30 points pls I need help send a screen shot if you completed and got a good grade.


30 points

Course Activity: Building a Device that Uses Energy from Chemical Reactions
task 1 
Par

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 10:30, carsonjohnsonn
Argon, neon, and xenon are examples of
Answers: 1
image
Physics, 22.06.2019 10:30, elijahjacksonrp6z2o7
The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water
Answers: 2
image
Physics, 22.06.2019 12:30, lmolder1329
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
image
Physics, 22.06.2019 14:20, yourgirlmaya
The energy released by a nuclear fusion reaction is produced when
Answers: 1
Do you know the correct answer?
30 points Course Activity: Building a Device that Uses Energy from Chemical Reactions
task 1...

Questions in other subjects: