subject
Chemistry, 02.12.2020 01:00 mikaelalcool1

HURRY BRAINLIEST IF CORRECT 2. Red light has a wavelength of 700 nm and a frequency of 4.3 x 1014 s-1. What is the energy of a single photon of red light?
a. 2.85 x 10-34 J
b. 2.85 x 10-19 J
c. 2.85 x 1019 J
d. 2.85 x 10-20 J

4. What is the difference between the ionization energy of inner-shell electrons and the ionization energy of outer-shell electrons?
a. They are equal to each other.
b. The ionization energy of inner-shell electrons is less than the ionization energy of outer-shell electrons.
c. The ionization energy of inner-shell electrons changes with respect to the ionization energy of outer-shell electrons.
d. The ionization energy of inner-shell electrons is greater than the ionization energy of outer-shell electrons.

8. What does the photoelectric effect show about the connection between light and electrons?
a. Electrons are composed of light.
b. Light can remove electrons from atoms.
c. It takes 2 photons of light to cause 1 electron to begin flowing.
d. Light is composed of electrons.

9. In which unit is the wavelength of an electromagnetic wave commonly measured?
a. J
b. nm
c. s–1
d. kg

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 20:30
In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask
Answers: 2
question
Chemistry, 22.06.2019 08:40
Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride
Answers: 1
question
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
question
Chemistry, 22.06.2019 21:30
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration
Answers: 1
You know the right answer?
HURRY BRAINLIEST IF CORRECT 2. Red light has a wavelength of 700 nm and a frequency of 4.3 x 1014 s...
Questions
question
Mathematics, 27.05.2021 20:00
question
Mathematics, 27.05.2021 20:00
question
Mathematics, 27.05.2021 20:00
question
Geography, 27.05.2021 20:10
question
History, 27.05.2021 20:10
question
Mathematics, 27.05.2021 20:10
question
English, 27.05.2021 20:10
Questions on the website: 13722367