PLEASE HELP ME!
WILL MARK BRAINLIEST

Water Cycle
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Answer:

p o e t i c o

Explanation:

no lo entenderias

Answer:

high use of mineral resources

Explanation:

brainliest pls

Explanation:

Description. Regardless of the type of hydrocarbon, combustion with oxygen produces 3 products: carbon dioxide, water and heat, as shown in the general reaction below.

Answer:

1.96 × 10²⁴ molecules

Explanation:

Step 1: Given data

Mass of ethanol (m): 150. g

Step 2: Calculate the number of moles (n) corresponding to 150. g of ethanol

The molar mass of ethanol is 46.07 g/mol.

150. g × 1 mol/46.07 g = 3.26 mol

Step 3: Calculate the number of molecules in 3.26 moles of ethanol

To convert moles into molecules, we need Avogadro's number: there are 6.02 × 10²³ molecules in 1  mole of molecules.

3.26 mol × 6.02 × 10²³ molecules/1  mol = 1.96 × 10²⁴ molecules

When leaves fall from a tree and decompose on the soil it benefits the ecosystem as nutrients are released into the soil.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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For the first

H : O : H

Theres two bonds here

Each other are sigma

So 2Sigma bonds present

For the Second

I believe you wanted to write Ethyne....

In a triple bond... Theres 1sigma and 2 Pi bonds

Every single bond is a sigma bond

So

Counting all

we have

2Pi bonds and 3Sigma bonds

65.38 u (or g)

I just searched it up

Answer:

1 - NO2 at 339 K

2 - Ne at 371 K

3 - H2 at 371 K

4 - H2 at 425 K

Explanation:

Kinetic Energy is directly related to temperature; the higher the temperature the higher the kinetic energy. Kinetic energy is also equal to 12m⋅v2, so if we want a high velocity we want high temp and low mass. So let's list out approximate masses:

m(H2)≈2

m(NO2)≈46

m(Ne)≈20

So we have NO2 at 339 K, the lowest temperature out of the mix, and the highest mass out of the mix, so this is moving the slowest.

In contrast, we have H2 at 425 K, the highest temperature out of the mix, and the lowest mass out of the mix, so this is moving the fastest.

Now we have Ne and H2 at 371 K, since they are at the same temperature they have the same kinetic energy. But H2 is lighter than Ne so it must be faster. To quantify this mathematically, let's assume (this is wrong but just as an assumption for an example) KE at 371 K is 100:

100=12⋅m⋅v2

200=m⋅v2

√200m=v

So H2 is about v=10 and Ne is about v=√10≈3

So the order to recap is:

1 - NO2 at 339 K

2 - Ne at 371 K

3 - H2 at 371 K

4 - H2 at 425 K

Hope that makes it clearer!

Answer: The answer is F

The answer is F , F shows the amount of energy the reactants need to gain to become products .

A potential energy diagram shows the change in potential energy of a system as reactants are converted into products.

From the figure attached we can understand the Eₐ is the activation energy reactants need to get converted into products.

Now when we study the figure( potential energy Diagram) given in the question ,

The reactants are energy level shown by G

The total energy required to get converted into products is denoted by H while ,

H - G is the actual energy required which is denoted by F.

Therefore F shows the amount of energy the reactants need to gain to become products .

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Answer: Salt is an ionic compound.

Explanation:

A compound formed by transfer of electrons from one atom to another is called an ionic compound.

For example, chemical formula of salt is NaCl (also called table salt).

Salt is formed when sodium (atomic no. 11) donates its one valence electron to chlorine (atomic no. 17). As a result, sodium ion and chlorine ion chemically combine together and form the compound NaCl.

Thus, we can conclude that salt is an ionic compound.

Answer:

Option a (100 kPa) is the appropriate option.

Explanation:

The given value is:

Original pressure,

P₁ = 50 kPa

Let the new pressure be "x".

Now,

⇒  [tex]\frac{P1}{T_1} =\frac{P_2}{T_2}[/tex]

On substituting the values, we get

⇒  [tex]\frac{50}{T_1} =\frac{x}{2T_1}[/tex]

On applying cross-multiplication, we get

⇒  [tex]x = 50\times 2[/tex]

⇒     [tex]=100 \ kPa[/tex]

Thus the answer above is the right one.

Answer:

The value becomes 0.0821 L-atm/K⁻¹-mol⁻¹.

Explanation:

The value of gas constant is 0.0821.

We know that, the ideal gas law is as follows :

[tex]PV=nRT\\\\R=\dfrac{PV}{nT}[/tex]

Where

P is pressure

V is volume

T is temperature

In order to use the Ideal Gas Constant of 0.0821, the units are follows :

Volume = Litre (L)

Pressure = atm

Amount = mol⁻¹

Temperature = K⁻¹

So, the value becomes 0.0821 L-atm/K⁻¹-mol⁻¹.

Answer: The final pressure is 75 mm Hg.

Explanation:

According to Boyle's law, at constant temperature the pressure of a gas in inversely proportional to volume.

Since, it is given that the temperature is constant. Hence, formula used is as follows.

[tex]P_{1}V_{1} = P_{2}V_{2}[/tex]

Substitute the values into above formula as follows.

[tex]P_{1}V_{1} = P_{2}V_{2}\\750 mm Hg \times 2 L = P_{2} \times 20 L\\P_{2} = \frac{750 mm Hg \times 2 L}{20 L}\\= 75 mm Hg[/tex]

Thus, we can conclude that the final pressure is 75 mm Hg.

Answer: Mass is converted to the energy binding a nucleus together.

Explanation: a p e x

Mass is converted to the energy binding a nucleus together cause a mass defect.Hence , Option (C) is correct.

The actual atomic mass is less than the predicted mass calculated by adding the masses of nucleons.

This additional mass is accounted for by binding energy that is released when a nucleus is formed.

When a nucleus is formed, some of the mass is converted to energy and this results in the mass defect.

Therefore, Mass is converted to the energy binding a nucleus together cause a mass defect. Hence , Option (C) is correct.

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Answer:

D.Meat

Explanation:

Meat-Most animals proteins are considered complete and high-quality.This includes red meat, poultry,and dairy products.

Amino acids are the molecules that make the protein and are essential nutrients. Meat is the best source that will have amino acids. Thus, option D is correct.

Amino acids are the building blocks that make the macromolecule, a protein required for functioning, strength, and activities of the body. Amino acid-containing foods like eggs, meat, and soybeans are rich in proteins.

Amino acids and proteins are essential for body growth and repair that can be gained from poultry sources like eggs, meat, fish, cheese, quinoa, beans, etc. Bread, fruits, and butter are rich in carbohydrates.

Therefore, option D. meat is rich in amino acids.

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Answer:b

Explanation:

The answer is water because they lay eggs in water

Explanation:

As I think Option C is correct i.e. NH4+.

Answer: An object's gravitational force depends primarily on the object's mass.

Explanation:

According to the Universal law of gravitation, every object whether is it is having large r small mass tends to exert a force on every other object, therefore this force is known as gravitational force.

Formula to calculate gravitational force is as follows.

[tex]F = \frac{G \times m_{1} \times m_{2}}{r^{2}}[/tex]

where,

F = Gravitational force

G = Gravitational constant = [tex]6.674 \times 10^{-11} m^{3}/kg s^{2}[/tex]

[tex]m_{1}[/tex] = mass of object 1

[tex]m_{2}[/tex] = mass of object 2

r = distance between the centers of the objects

Therefore, it means that gravitational force of an object primarily depends on an object's mass.

Thus, we can conclude that an object's gravitational force depends primarily on the object's mass.

Answer:

75300g ..........................

Answer: did you ever find the answer? I need part E, F, and G if you found them please!!!!! I’m begging, my school year ends in 30 minutes and I gotta get this submitted!!!!!!

Explanation:

Answer:

Hydroxylamine and pyridine

Explanation:

Just did it

Answer:

Cell is defined as the smallest unit or basic unit of life.

the smallest part of a living thing that can carry out the activities needed for life. Basically the unit of all forms of life.

Explanation:

hope this helps in anyway :)

Answer:

just awser

eeww

Explanation: