Chemistry, 21.11.2020 04:20 aprilpendergrass
1. A television works by transforming electrical energy into what other kinds of energy?
2. When the water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occur?
A. Electrical - light - Mechanical
B. Chemical - Mechanical - Electrical
C. Mechanical - Chemical - light
D. Mechanical - Electrical - light
3. Some students observing a classroom device being used noticed the below energy transformations. Which device were the students most likely observing?
A. A triple beam balance measuring am objects mass
B. A pencil plugged into a wall
C. A projector displaying a diagram on the screen
D. A working flashlight used to light up the dark corner
4. What would be a potential energy problem when collecting wind energy?
A. Wind is no renewable
B. Wind is unpredictable
C. Wind makes pollutants
D. Wind turbines are cheap to make.
Answers: 3
Chemistry, 21.06.2019 15:50
Which of these reactions are redox reactions? check all that apply.cd + hcl → cdcl2 + h2cucl2 + na2s → 2nacl + cuscaco3 → cao + co2 2zns + 3o2 → 2zno + 2so2 ch4 + 2o2 → co2 + 2h2o
Answers: 3
Chemistry, 23.06.2019 01:00
If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1
Answers: 1
1. A television works by transforming electrical energy into what other kinds of energy?
2. When th...
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