Chemistry, 30.03.2021 16:50 zachzach28280
Many appliances in your home and school use electrical energy. Which of these appliances is intended to convert electrical energy into sound energy?
printer
refrigerator
electric heater
music amplifier
Answers: 3
Chemistry, 22.06.2019 07:00, daniellekennedy05
If there is any 12 to 14 girls that need a boyfriend just follow me and let me know
Answers: 1
Chemistry, 22.06.2019 23:00, lufung8627
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Chemistry, 23.06.2019 05:30, choatefarmsus
Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?
Answers: 1
Many appliances in your home and school use electrical energy. Which of these appliances is intended...
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