McMingMing

10.11.2020 • 

Chemistry

1. Calculate the wavelength and energy of light that has a frequency of 1.78 x 10^15 Hz.
2. A photon of light has a wavelength of 0.034 cm. Calculate its energy. (Don't forget to convert cm to meters)
3. The wavelength of green light from a traffic signal is centered at 5.45 x 10^-5 cm. Calculate the frequency
4. Calculate the frequency of light that has a wavelength of 9.75 x 10^-7 m.
5. Calculate the energy and frequency of red light having a wavelength of 6.55 x 10^-5 cm.

Ответ:

miamidolphinslv9736

23.03.2020

Chemistry

---

When pH decreases acidity increases,

and if pH increases  acidity decreases.

Explanation:

1 2 3 4 5 6 7(neutral) 8 9 10

acidic                          basic

So, when pH decreases acidity increases,

and if pH increases  acidity decreases.

---

0,0(0 оценок)