CHEMISTRY HIGH SCHOOL

as electrons are passed through the system of electron carriers associated with photosystem ii, they lose energy. what happens to this energy?

Answers

Answer 1
Answer: they break up and become only positive energy

Related Questions

Nuclear fusion in the sun involves hydrogen (H) atoms combining to form helium (He). A student claims that since the atmosphere contains hydrogen, any fusion reaction on Earth would result in an uncontrolled chain reaction. What is wrong with the student's reasoning?The hydrogen in air is not densely packed enough for an uncontrolled chain reaction. Uncontrolled chain reactions can only happen during nuclear fission. It is impossible to cause a fusion reaction to happen anywhere outside of the sun. We are safe because there is no radioactive hydrogen in the air.
Calculate the molar mass CaCl2 Ca(NO3)2 Ca(OH)2 CaSO4 BaCl2
Magnetism is believed to be caused by the alignment of small, numerous sub-units called _____. poles fields ions domains
Ca(OH)2 is added to a large beaker of water. How is the solution different from the original water?A...The solution turns blue litmus to red. B...The solution turns phenolphthalein pink. C...The solution has more hydrogen ions. D....The solution has fewer hydroxide ions.
Why does a high temperature have to be used to weld pieces of metal together

Which of the following is NOT a clue that a chemical change has occurred?a. change in color
b. production of a gas
c. formation of a precipitate
d. change in shape

Answers

change in shape is the answer because all chemical reactions only affect the chemical composition of the substance

Based on bond type, which compound has thehighest melting point?
(1) CH3OH (3) CaCl2
(2) C6H14 (4) CCl4

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Based on bond type, CaCI2 has the highest melting point.

The sense of touch is produced by______ within the skin. dermis,muscles,neurons,feelings

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Neurons is the correct answer.

If 20.0 mL of Ca(OH)2 with an unknown concentration is neutralized by 37.5 mL of 0.124 M HCl, what is the concentration of the Ca(OH)2 solution? Show all of the work needed to solve this problem. Ca(OH)2 + 2 HCl yields 2 H2 O + CaCl2

Answers

You first need to write the balanced chemical reaction for what is going on.
Ca(OH)₂+2HCl→2H₂O+CaCl₂

After you make the balanced chemical reaction, First you find the moles of HCl used.  To do this multiply 0.0375L by 0.124M to get 0.00465mol HCl.  Then you multiply 0.00465mol HCl by (1mol Ca(OH)₂)/(2mol HCl) to get 0.002325mol Ca(OH)₂.  Finally to find concentration of Ca(OH)₂ used you divide 0.002325mol by 0.020L to get 0.116M Ca(OH)₂.
Therefore the concentration of the unknown solution of Ca(OH)₂ was 0.116M.

I hope this helps.  Let me know if anything is unclear.

The reaction below demonstrates which characteristic of a base?CuSO4(aq)+2NaOH(aq)->Cu(OH)2(s)+Na2SO4
the ability of bases to release sodium ions into solution
the ability of bases to release hydrogen ions into solution
the ability of a base to react with carbonate or bicarbonate
the ability of a base to react with a soluble metal salt

Answers

I think the correct answer from the choices listed above is the last option. The reaction below demonstrates a characteristic of base which is the ability of a base to react with a soluble metal salt. Hope this answers the question. Have a nice day.
In the reaction of the type: 
           CuSO4(aq)   +   2NaOH(aq)  ->   Cu(OH)2(s)   +   Na2SO4

Herein, base (NaOH) reacts with water soluble metal salt (CuSO4) to form metal hydroxide.

This displays ability of a base to react with a soluble metal salt. Hence correct answer is option D. 

Which of the following, if added to soil, would lower the base saturation? A) Sodium B) Potassium C) Magnesium D) Calcium E) Aluminum

Answers

Answer: d

Explanation:
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Which of the following aqueous solutions would have the greatest freezing-point depression?(A) 0.10 m (NH₄)₂SO₄ (B) 0.10 m MnSO₄ (C) 0.10 m NaF (D) 0.10 m KCI (E) 0.10 m CH₃OH
What ingredients are needed to make GHB?