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3241004551 [841]
2 years ago
5

Need answer asap

Chemistry
2 answers:
Korolek [52]2 years ago
8 0

Answer:

A lung(s) isn't an organism because it isn't individual as one. Its APART of an organism, but its not fully one in that category. So, the final answer is lung.

Rasek [7]2 years ago
5 0
a lung is NOT an organism.
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what is the molarity of a solution prepared by dissolving 20.0 g of NaOH in enough water to make 0.50 L og solution?
Alona [7]

Answer:

Molarity of a solution = 1 mol / L

Explanation:

Given:

Amount of NaOH =20 g

Amount of water = 0.50 l

Find:

Molarity of a solution

Computation:

1 mol of NaOH = 40 g

So,

Moles of NaOH = 20 / 40 g = 0.50 mol NaOH

Molarity of a solution = moles of solute / Liters of solution

Molarity of a solution = 0.50 / 0.50

Molarity of a solution = 1 mol / L

6 0
3 years ago
2.5kg weighing cat climbing at the top of the tree has a potential energy of 986 J. Find the height.
Kruka [31]

Answer:

The height = 39.44 m

Explanation:

Given:

Mass m = 2.5 kg

Potential energy = 986 J

Find:

The height

Computation:

Potential energy = mgh

g = Acceleration due to gravity = 10 m/s²

986 = (2.5)(10)(h)

h = 39.44 m

The height = 39.44 m

3 0
3 years ago
Help me, I don’t understand
marysya [2.9K]

Answer:

option c

Explanation:

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7 0
3 years ago
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A sample of an Iron Oxalato complex salt weighting 0.145 grams requires 34.88 mL of 0.015 M KMnO4 to turn the solution a very li
Amanda [17]

Answer:

5.2 ×10^-4 moles

Explanation:

Equation of reaction:

5C2O4^2- + 2MnO4^- +. 6H^+. ----------> 10CO2. +. 8H2O. + 2Mn^2+

From the information provided in the question:

Volume of potassium permanganate= 34.88ml

Concentration of potassium permanganate= 0.015M

Amount potassium permanganate= 0.015 × 34.88/1000= 5.2 ×10^-4 moles

6 0
3 years ago
Read 2 more answers
Each energy sublevel contains __________ number of electrons. For example, sublevel D can hold up to _______ electrons. A. the s
Annette [7]

Answer:

Each energy sublevel contains a different number of electrons. For example, sublevel D can contain up to 10 electrons

Explanation:

The atoms are surrounded by propellers that within each propeller there is a certain number of electrons, these electrons jump from orbit to orbit according to the amount of energy they have. The four levels that make up the electronic cloud that surrounds an atom are: s p d f.

When these electrons change orbit or level they release energy in the form of light, which is known as a photon.

3 0
3 years ago
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