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
3241004551 [841]
3 years ago
9

Energy from the sun is absorbed by ____

Chemistry
1 answer:
Stells [14]3 years ago
7 0
A. Chlorophyll

I was just learning this
You might be interested in
What happens to the temperature of the liquid in a cup of water as some of the water evaporates?
Grace [21]

C. The temperature decreases because the most energetic molecules escape.


8 0
3 years ago
Read 2 more answers
Calculate the solubility of mn(oh)2 in grams per liter when buffered at ph=7.0. assume that buffer capacity is not exhausted
Vanyuwa [196]
When PH + POH = 14 
∴ POH = 14 -7 = 7

when POH = -㏒[OH-]

          7    = -㏒ [OH-]
∴[OH-] = 10^-7

by using ICE table:

           Mn(OH)2(s) ⇄  Mn2+ (aq)  + 2OH-(aq)
initial                              0                     10^-7
change                           +X                      +2X
Equ                                 X                  (10^-7 + 2X)

when Ksp = [Mn2+][OH-]^2

when Ksp of Mn(OH)2 = 4.6 x 10^-14

by substitution:

4.6 x 10^-14 = X*(10^-7+2X)^2  by solving this equation for X

∴ X =2.3 x 10-5 M

∴ The solubility of Mn(OH)2 in grams per liter (when the molar mass of Mn(OH)2 = 88.953 g/mol
= 2.3 x10^-5 moles/L * 88.953 g/mol

= 0.002 g/ L
3 0
3 years ago
Read 2 more answers
A chemist needs to find the concentration of a solution of barium hydroxide.
Brums [2.3K]

Method 1: gravimetry

advantages: Impurities in the sample can be identified

disadvantages: The process is long, because it goes through several stages

Method 2: titration

advantages: the process is fast, because the titrate and titrant react immediately

disadvantages: Sometimes the determination of the end point of the titration is carried out too fast or too slowly so that the calculations carried out are inaccurate

3 0
2 years ago
23491pa undergoes beta decay. what is the mass number of the resulting element?
qaws [65]
Answer is: mass number is 234.
Beta decay is radioactive decay<span> in which a </span>beta ray<span> and a </span>neutrino<span> are emitted from an </span><span>atomic nucleus.
</span>There are two types of beta decay: beta minus<span> and </span>beta plus. <span> In beta minus </span><span>decay, neutron is converted to a proton and an </span>electron<span> and an </span>electron antineutrino and in beta plus <span>decay, a proton is converted to a neutron and </span>positron<span> and an </span>electron neutrino, so mass number does not change.
3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! What is the abbreviated electron configuration for nitrogen and for chlorine
tino4ka555 [31]

Answer:chlorine’s is (Ne) 3s2 3p5

Explanation:lol

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following reactions are redox reactions? Which of the following reactions are redox reactions? Ca(s)+Cl2(g)→CaCl2(s
    7·1 answer
  • If a human cell were to increase the amount of cholesterol embedded within its plasma membrane, which of the following would mos
    14·2 answers
  • I need help with #22
    7·1 answer
  • Fog forms when a water vapor changes to the___ state of matter?
    9·1 answer
  • What metabolic waste accumulates in muscle with excessive exertion?
    6·1 answer
  • Label the reactants, products, and intermediates.
    6·1 answer
  • Write a lab report for this lesson’s lab. Be sure that your report:
    5·1 answer
  • Anyone have any ideas on what i should draw for my art project please let me know
    12·2 answers
  • C. What is oxidized in the reaction? What is reduced? (2 points)
    15·1 answer
  • The chemical equations in model 1 contain the phase notations (s), (l), (g), and (aq). match each symbol with its meaning.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!