Chemistry, 09.12.2019 22:31 wolfsilvereye10
Asound wave has a wavelength of 0.450
meters. if its speed in cold air is 330
meters/second, what is the wave's frequency?
select the correct answer
0.890 hertz
100 hertz
230 hertz
733 hertz
Answers: 2
Chemistry, 21.06.2019 22:20, Brooke7644
Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
Answers: 2
Chemistry, 21.06.2019 23:00, SmolBeanPotato
What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml
Answers: 1
Chemistry, 22.06.2019 06:30, coreyslotte
Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
Answers: 2
Asound wave has a wavelength of 0.450
meters. if its speed in cold air is 330
meters/sec...
meters. if its speed in cold air is 330
meters/sec...
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