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Alex777 [14]
2 years ago
11

The green pigment required for photosynthesis is:

Chemistry
1 answer:
katen-ka-za [31]2 years ago
7 0
C. chlorophyll



gc sh jj cd dhjjfddr
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Which of the following represents a 1.00 M (M = mol/dm3) aqueous solution of glucose (C6H12O6)?
irga5000 [103]
The answer would be c
4 0
3 years ago
Explain why water is polar. Check all that apply. View Available Hint(s) Water is known as a polar molecule because Check all th
sineoko [7]

Answer:

The correct statements that you must check are:

  • The oxygen atom has a greater attraction for electrons than the hydrogen atom does (second statement).

  • The electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms (fourth statement).

Explanation:

Electronegativity is the relative ability of an atom to pull the electrons in a covalent bond.

Hydrogen has an electronegativity of 2.20 and oxygen has 3.44. That means that oxygen attracts the electrons more strongly than hydrogen does (second statement).

As consequence, the electrons in the covalent bond H - O of water are not shared equally (fourth statement): the electron density will  be higher around the O atoms.

Of course, this discards the statement telling that hydrogen atom attracts electrons much more strongly than the oxygen atom, and the statement telling that hydrogen and oxigen have same electronegativity.

Such difference in electron densities creates a dipole moment, so you discard the last statement (that the water dipole moment is equal to zero).

7 0
3 years ago
What is the volume of the sample at stp?
Yuki888 [10]
At stp the volume is 22.4 L .

hope this helps!
3 0
3 years ago
Two 25.0-mL aqueous solutions, labeled A and B, contain the ions indicated:
asambeis [7]

The additional volume of HCl which must be added to reach to the equivalence point is 8.33 mL

The moles of HCl which is required to reach the equivalence point can be calculated in the way as follows.

Moles of HCl can be calculated as

Moles of HCl = 0.004 moles of Ca (OH) 2 × 2 moles of HCl / 1 moles of Ca (OH) 2

= 0.008 moles of HCl

The volume of HCl which is required to reach the equivalence point can be calculated in the way given as follows.

Volume of HCl required= 0.008 moles of HCl × 1 L / 0.24 moles of HCl × 1 ml / 10 -³ L

= 33.33 ml

The additional volume of HCl calculated as

Additional volume = required volume – actual volume

= 33.33 mL – 25 mL

= 8 . 33 mL

Thus, we calculated that the additional volume of HCl which must be added to reach to the equivalence point is 8.33 mL.

learn more about equivalence point:

brainly.com/question/19997690

#SPJ4

4 0
10 months ago
Can we move only one electron from its orbit to another orbit of lower energy without moving other electrons of the atom? well i
Mrac [35]
Yes, it can happen.

If all the lower energy orbits are already filled with electrons, then it cannot happen since the lower orbitals will already be full, hence another electron will have to move.

However, if the lower energy orbits are not full (for instance if one excited electron goes back to its normal state), then it can happen.
4 0
3 years ago
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