1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
chubhunter [2.5K]
3 years ago
9

Which rays of the electromagnetic spectrum are responsible for causing sunburn when you spend too much time exposed at the beach

?
Chemistry
1 answer:
AlekseyPX3 years ago
8 0

Answer: ultraviolet light

Explanation:

You might be interested in
Which term best describes the process by which particles escape from the surface of a nonboiling liquid and enter the gas state?
weeeeeb [17]
Evaporating? But that’s with a boiling liquid
4 0
3 years ago
What happens to the atomic radius when an electron is gained?
LenaWriter [7]
A. The negative ionic radius is larger than the neutral atomic radius.
6 0
2 years ago
Convert the following temperature to c 67k b) 1671k
kap26 [50]
  • Convert Kelvin to °c

(a) 67°c

Formula:-

k=°c+273

°c = 273 - k

°c = 273-67= 206 °c

(b) 1671 k

k=°c+273

°c = 273 - k

°c= 273-1671 = -1398°c

8 0
2 years ago
The equilibrium of 2H 2 O(g) 2H 2 (g) + O 2 (g) at 2,000 K has a Keq value of 5.31 x 10-10. What is the Keq expression for this
nevsk [136]

Answer:

5.31*10^{-10} = \frac{[]H_{2}]^{2}[O_{2}]}{[H_{2}O]^{2}}

Explanation:

For a chemical reaction, equilibrium is a state at which the rate of the forward reaction equals that of the reverse reaction. The equilibrium constant Keq is a parameter characteristic of this state which is expressed as a ratio of the concentration of the products to that of the reactants.

For a hypothetical reaction:

xA + yB ⇄ zC

The equilibrium constant is :

Keq = \frac{[A]^{x}[B]^{y}}{[C]^{z} }

The given reaction involves the decomposition of H2O into H2 and O2

2H_{2}O\rightleftharpoons 2H_{2} + O_{2}

The equilibrium constant is expressed as :

Keq = \frac{[]H_{2}]^{2}[O_{2}]}{[H_{2}O]^{2}}

Since Keq = 5.31*10^-10

5.31*10^{-10} = \frac{[]H_{2}]^{2}[O_{2}]}{[H_{2}O]^{2}}

3 0
2 years ago
Read 2 more answers
Asap! first to answer correctly gets 10 pts plus brainliest! :)
olga_2 [115]

Answer:

c

Explanation:

c first quarter waxing half moon

6 0
3 years ago
Other questions:
  • Which of the reactions are spontaneous (favorable)?
    12·1 answer
  • Predict the effect of a mutation which limits the production of pigment in hair
    5·1 answer
  • Who were the scientists who won the nobel prize for the atomic model?
    12·1 answer
  • An ionic bond would most likely form between atoms of which of these pairs? A. oxygen and oxygen B. magnesium and oxygen C. magn
    7·1 answer
  • Suppose an aqueous solution containing 1.25 g of lead(II) acetate is treated with 5.95 g of carbon diox- ide. Calculate the theo
    9·1 answer
  • Using the accepted value for the specific heat of tungsten (See the References tool), calculate the final temperature of the wat
    5·1 answer
  • Study the timeline.
    14·2 answers
  • Why is electron capture accompanied by the emission of an X-ray?
    6·1 answer
  • Calculate the pH of 500cm3 of 0.2mol/dm3 Ca(OH2), assume complete ionisation​
    8·1 answer
  • "Para enfriar algo rápidamente se hace una mezcla de hielo con sal o, si tiene precaución, alcohol. El punto de congelación baja
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!