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Pani-rosa [81]
3 years ago
9

The electrons that are passed to nadp at the end of the electron transfer chain were obtained from

Chemistry
1 answer:
marshall27 [118]3 years ago
5 0
At the end of the electron transfer chain were obtained from chlorophyll 
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Which of the following statements is true?
Kazeer [188]
Only one: the nucleus of an atom is made up of protons and neutrons.
Why others are false:
Boiling point of a substance is not dependent on the volume because it’s a intensive property.
During sublimation, a solid changes directly into gas.
Electrons orbit the nucleus of an atom in circular orbits (kinda unsure of this one.)
3 0
3 years ago
Read 2 more answers
A chemist reacted 11.50 grams of sodium metal with an excess amount of chlorine gas. The chemical reaction that occurred is show
iren [92.7K]

Actual yield is the definite mass of the product obtained from the reaction. The actual yield of the reaction is 24.83 gms.

<h3>What is the percentage yield?</h3>

Percentage yield is the proportion of the actual to the theoretical yield. The formula is given as,

% yield = Actual yield ÷ Theoretical yield × 100

The balanced chemical reaction is given as:

2 Na + Cl₂ → 2NaCl

From the reaction:

2 × 23 Na = 2 × 58.44 gm of NaCl

If, 1 gm of Na will produce = (2 × 58.44) ÷ (2 × 23)

Then, 11.50 gms sodium will produce, (2 × 58.44) ÷ (2× 23) × 11.50

= 29.22 g

So, the actual yield is calculated as:

= % yield × Theoretical yield ÷ 100

= 85 × 29.22 ÷ 100

= 24.83 g

Therefore, the actual yield of the reaction is 24.83 gms.

Learn more about actual yield here:

brainly.com/question/22257659

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8 0
3 years ago
In each pair of statements, choose the example that is more reliable.
TEA [102]

Answer:

"statement 2" for the first pair and "statement 1" for the second pair

Explanation:

3 0
3 years ago
Read 2 more answers
If two people attempt the same maneuver, what determines the amount of force that each is required to exert?
Helen [10]

Answer:

Explanation:

you need to change either the turn of the jump or push off higher or lower from the wall

3 0
3 years ago
HELPPPP PLEASE ASAP!!!
irina [24]
Answer:

230
     Th
  90

Explanation:

The left side shows the element uranium with mass number 234 (superscript to the left of ths symbol) and atomic mass 92 (subscript to the left of the symbol).

So,  you have to find the mass number and atomic numbers missing on the right side which added to those shown for the helium atom reach 234 and 92.

This the the mathematics:

1) Mass number of U - mass number of He = 234 - 4 = 230 ⇒ the mass number of the missing element is 230.

2) atomic number of U - atomic number of He = 92 - 2 = 90 ⇒ the atomic number of the missing element is 90.

Now, you use the atomic mass to identify the element. You do it by simply searching in a periodic table. There you find that the atomic number 90 corresponds to thorium, whose symbol is Th.

Now you have that the product that completes the right side of the decay equation is:

230
     Th
  90


4 0
4 years ago
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