It is important to understand the differences between chemical and physical changes. chemical changes result in new substances, but physical changes do not. which process is an example of a physical change?
f) water turns to steam when boiled over a bunsen burner.
g) carbon combines with oxygen to form carbon dioxide gas.
h) water breaks down into hydrogen and oxygen gases.
i) limestone breaks down into lime and carbon dioxide when heated.
Answers: 3
Physics, 21.06.2019 23:30, EstevanOtero7361
Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work
Answers: 1
Physics, 22.06.2019 11:30, Gigglygoose4181
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
Answers: 1
It is important to understand the differences between chemical and physical changes. chemical change...
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