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Galina-37 [17]
3 years ago
6

Organisms change energy from the environment or from their food into other types of energy. This is called what?

Chemistry
1 answer:
astraxan [27]3 years ago
8 0

Answer:

Metabolism

Explanation:

This is called Metabolism.

Metabolism is a combination of spontaneous chemical reactions which release non-spontaneous energy and chemical reactions requiring energy to proceed. In order to perform cellular processes, living organisms can take energy from food, nutrients or sunlight.

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Let's assume you were given 2.0 g benzil, 2.2 g dibenzyl ketone, 50 mL 95% ethanol and 0.3 g potassium hydroxide to synthesize t
almond37 [142]

Answer:

the % yield is 82%

Explanation:

Given the data in the question,

we know that;

Molar mass of benzil is 210.23 g·mol−1

Molar mass of dibenzyl ketone is 210.27 g·mol−1

Molar mass of tetraphenylcyclopentadienone is 384.5 g·mol−1

Now,

2.0 g benzil = 2 g / 210.23 g·mol−1 = 0.0095 mole

2.2 g dibenzyl ketone = 2.2 / 210.27 = 0.0105 mole

3.0 g of tetraphenylcyclopentadienone = 3 / 384.5  = 0.0078 mole

Now, the limiting reagent is benzil. 0.0095 mole can reacts wiyh 0.0095 mole of dibenzyl ketone

percentage yield = ( 0.0078 mole / 0.0095 mole ) × 100%

= 0.82 × 100%

= 82%

Therefore, the % yield is 82%

3 0
3 years ago
Which part of an amino acid is always acidic?
Alenkasestr [34]
The carboxyl group in the amino acid is always acidic
8 0
3 years ago
What is the name of Br6F10 ?
astraxan [27]

Answer:

idfk

Explanation:

3 0
3 years ago
Which of the following pairs of elements would most likely combine to form a salt (ionic bond) ?
vichka [17]

Rb and Cl₂.

<h3>Explanation</h3>
  • Metals tend to transfer their electrons to nonmetals when the two react. They will produce two ions. As a result, bonds between a metal and a nonmetal tend to be ionic.
  • Nonmetals tend to share electrons. As a result, bonds between two nonmetals tend to be covalent.
  • Noble gas elements are stable. They seldom react with other elements or with other noble gases.
  • Rb is a metal. Cl is a nonmetal. They tend to form ionic bonds.
  • H and O are nonmetals. They tend to form covalent bonds.
  • P and I are nonmetals. They tend to form covalent bonds.
  • Ne and He are noble gases. They won't react under standard conditions.
8 0
3 years ago
If you had a 100 mL of a solution of 0.01 M NaF, how many moles would that solution contain?
Daniel [21]

Answer:

0.001 mole of NaF.

Explanation:

From the question given above, the following data were obtained:

Volume of solution = 100 mL

Molarity = 0.01 M

Mole of NaF =?

Next, we shall convert 100 mL to litre (L). This can be obtained as follow:

1000 mL = 1 L

Therefore,

100 mL = 100 mL × 1 L / 1000 ml

100 mL = 0.1 L

Thus, 100 mL is equivalent to 0.1 L.

Finally, we shall determine the number of mole of NaF present in the solution. This can be obtained as follow:

Volume of solution = 0.1 L

Molarity = 0.01 M

Mole of NaF =?

Molarity =mole /Volume

0.01 = mole of NaF / 0.1

Cross multiply

Mole of NaF = 0.01 × 0.1

Mole of NaF = 0.001 mole.

Thus, 0.001 mole of NaF is present in 100 mL of the solution.

5 0
3 years ago
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