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
Anit [1.1K]
4 years ago
6

Explain how a photosystem converts light energy to chemical energy steps

Chemistry
1 answer:
const2013 [10]4 years ago
7 0
Light energy is turned into chemical energy when <span>when a photochemically excited special chlorophyll molecule of the photosynthetic reaction center loses an electron, undergoing an oxidation reaction.

</span>
You might be interested in
What are the differences between prokaryote and eukaryote cells?<br> don't come for me I'm slow :)
ruslelena [56]

Answer:

prokaryot cells doesn't have core or kernel like archeabacteria and eubacteria , but eukaryotes have it .

Explanation:

Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA

6 0
3 years ago
Treatment of ethyl acetoacetate with NaOEt (2 equiv) and BrCH2CH2Br forms compound X. This reaction is the first step in the syn
valkas [14]

Answer:

See explanation below

Explanation:

In this reaction we have the ethyl acetoacetate which is reacting with 2 eq of sodium etoxide. The sodium etoxide is a base and it usually behaves as a nucleophyle of many reactions. Therefore, it will atract all the acidics protons in a molecule.

In the case of the ethyl acetoacetate, the protons that are in the methylene group (CH3 - CO - CH2 - COOCH2CH3) are the more acidic protons, therefore the etoxide will substract these protons instead of the protons of the methyl groups. This is because those hydrogens (in the methylene group) are between two carbonile groups, which make them more available and acidic for any reaction. As we have 2 equivalents of etoxide, means that it will substract both of the hydrogen atoms there, and then, reacts with the Br - CH2CH2 - Br and form a product of an aldolic condensation.

The mechanism of this reaction to reach X is shown in the attached picture.

3 0
4 years ago
Which of the following is a characteristic of a good index fossil?
sladkih [1.3K]
The answer is c, because we use it as an "index" to tell when the animal lived, so if it's unique to that time level in the ground we know it lived that long ago.
5 0
3 years ago
6NaBr+1AlO3=3Na2O+2AlBr3 How many grams of NaBr would be needed in order to make 23.5 grams of AlBr3
Evgesh-ka [11]

Answer:

23.5 grams of AlBr3 will be produced by 27.20 grams of NaBr

Explanation:

The balanced equation here is

6NaBr + 1AlO3 = 3Na2O + 2AlBr3

6 moles of NaBr are required to produce 2 moles of AlBr3

Mass of one mole of NaBr = 102.894 g/mol

Mass of one mole of AlBr3 = 266.69 g/mol

Mass of 6 moles of NaBr = 6*102.894 g/mol

Mass of two moles of AlBr3 = 2*266.69 g/mol

6*102.894 g  NaBr produces 2*266.69 g of AlBr3

23.5 grams of AlBr3 will be produced by (6*102.894)/(2*266.69 )*23.5 = 27.20 grams of NaBr

6 0
3 years ago
Acetylenic fatty acids are found in many tropical plants. Compound B, C18H32O2, is one such compound; it absorbs 2 equivalents o
Rufina [12.5K]

Answer:no

Explanatio:

tôahrhafkjdjf

3 0
3 years ago
Other questions:
  • Write the net ionic equation, including the phases.2hno3(aq)+sr(oh)2(aq) ---&gt; 2h2o(l)+srno32(aq)
    5·1 answer
  • In 1983, a pilot miscalculated the fuel requirement for Air Canada Fight 143 from Montreal to Edmonton. Halfway through the flig
    5·1 answer
  • If 518.0 g sample of a metal has a volume of 2.00mL what is the density of the metal
    6·1 answer
  • Which of the following acids is the STRONGEST? The acid is followed by its Ka value. Which of the following acids is the STRONGE
    7·1 answer
  • I need help with these please. I’m using 19 points for this.
    8·1 answer
  • A cube of zinc and a cube of silver have the same volume. The mass of the zinc is 55lbs (pounds). What is the mass of the silver
    15·1 answer
  • Which statements correctly describe the human skeletal system?
    5·1 answer
  • The type of intermolecular force present in I2, Br2, and Cl2 is:
    13·1 answer
  • A section of a topographic map is shown below
    14·1 answer
  • Which tool is used to measure an object’s mass?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!