Which one is a physical change?
(a)frying an egg
(c) burning of candle
(b) breaking a woo...
Answers: 2
Chemistry, 21.06.2019 23:00
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
Answers: 1
Chemistry, 22.06.2019 03:00
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
Answers: 3
Chemistry, 22.06.2019 04:00
What three natural resources are found in the great lakes region
Answers: 2
Chemistry, 22.06.2019 13:00
In what environment would mineral formation caused by high pressures and high temperatures most likely occur?
Answers: 3
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