Type several paragraphs describing the full carbon cycle in detail.

The products would be formed by these reactants. Because Mg is a more powerful reducing agent than  H₂, it can reduce H⁺ ions to form  H₂ gas.

Because it oxidizes magnesium to magnesium cations while being reduced, hydrochloric acid, the compound that delivers hydrogen ions to the reaction, acts as an oxidation agent.

When a reactant loses electrons during the reaction, this is referred to as oxidation. When a reactant gains electrons during the reaction, this is referred to as reduction. This is common when metals react with acid.

A half reaction is the component of a redox reaction that is either the oxidation or reduction reaction. By taking into account the change in oxidation states of the individual substances involved in the redox reaction, a half reaction is obtained.

Oxidation half-reaction: Mg(s) → Mg²⁺(aq) + 2e⁻

Reduction half-reaction: 2H⁺(aq) + 2e⁻ → H₂(g)

The balanced equation is:

Mg(s) + 2HCl(aq) → MgCl₂(aq) + H₂(g)

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Answer: D

Explanation:

It is the most likely one

Explanation:

sorry if you get it wrong but I think its b

The volume of \(N_2O_5\) needed to produce 9.64 L of \(NO_2\) is 4.97 L, calculated using stoichiometry and the ideal gas equation.

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Answer:

limiting reagent is 02

mass of CO2 is 11g

Explanation:

the limiting reagent is the reagent which is consumed completely

no of mole of CH2 = m in g / molar mass

= 46.0/(12+2)

= 3.285 moles.

no of mole of O2 = 32/32

= 1 mole

from the reaction

1 mole of CH2 ==> 2 mol of O2

3.285 mol ==> 1/2 mol

3.285 mol ==> 0.5 mol

:. since O2 has the lowest mol , it's the limiting reagent

the limiting reagent mol will be used to find the no of mole of CH2

2 mol of O2==> 1 mol of CO2

0.5 mol ==> 0.5/2

0.25 mole of CO2

mass = 0.25 * ( 12+32)

= 11g

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After the third energy level has 8 electrons (argon), the next 2 electrons go into the fourth energy level.

Explanation:

In order the atom to be stable the 3 energy level should carry only 8 electrons but 3 energy level can carry up to 18 electrons

Answer: Chloroplast

Explanation:

The equation of the reaction leading to the formation of the precipitate is; \(PbCl_{2}(aq) + Na_{2} SO_{4} (aq) ---- > PbSO_{4}(s) + 2NaCl(aq)\)

We define a precipitate as a compound that can be formed as a solid when we mix two aqueous solutions. An aqueous solution is a solution of a substance that have been dissolved in water.

Thus, when we have a mixture of two liquid reactants and then one of the products does separate itself out of the solution then we say that a precipitate has been formed.

In this case, we are to write down the equation of the reaction between aqueous lead (ii) chloride reacts with aqueous sodium sulfate to produce a lead(ii) sulfate. The solid would separate out of the system and we can see the white color of the lead(ii) sulfate.

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The question is incomplete, the question is;

Which drawing best accounts for the polarity of methanol, CH3OH, and the bond polarities that make a major contribution to the overall molecular polarity?

A) drawing (1)                                  B) drawing (2)

D) drawing (4)                                  C) drawing (3)

Answer:

   B) drawing (2)

Explanation:

In Chemistry, the direction of dipole is shown from positive end to negative end.

The image that contains the options in the question asked has been attached.

We can see in image 2 that the oxygen atom was correctly designated as the negative end of the dipole while the carbon and hydrogen atoms were each designated as positive ends of the dipole in accordance with the magnitude of electronegativity difference between the two atoms. The net dipole moment is now taken in the direction shown in image 2. This is the correct answer.

Drawing 2 best accounts for the polarity of methanol, CH3OH. Therefore, the correct option is B.

A carbon atom (C) joins with three hydrogen atoms (H), a hydroxyl group (OH), and three other atoms to form methanol (CH3OH). An oxygen atom (O) is attached to a hydrogen atom to form a hydroxyl group. The three hydrogen atoms and hydroxyl groups are arranged in three dimensions, giving the molecular structure of methanol a tetrahedral form around the core carbon atom.

A polar covalent bond is formed between oxygen and hydrogen because the oxygen atom in the hydroxyl group is more electronegative than the carbon and hydrogen atoms. Due to the unequal sharing of electrons, oxygen has a partial negative charge (-) and hydrogen has a partial positive charge (+), resulting in this polarity.

So, the correct option is B.

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Your question is incomplete, most probably the complete question is:

Which drawing best accounts for the polarity of methanol, CH3OH, and the bond polarities that make a major contribution to the overall molecular polarity?

A) drawing (1)                                  B) drawing (2)

D) drawing (4)                                  C) drawing (3)

Answer:

True

Explanation:

because its the law of conservation of mass

Answer:

I think its A im sorry if im wrong

Explanation:

Answer:

color and odor

Explanation:

The given reaction has ΔG value  -12207KJ. Therefore, the given reaction is a spontaneous reaction as value of ΔG is negative.

A spontaneous process refers to anything that happens by itself, without external energy input. A ball is going to roll down an incline, water will flow downhill, ice will melt into water, radioactive elements will decay, and iron will rust, for instance. It is impossible for a reaction to not be spontaneous if it is exothermic (H negative) and increases the entropy for the system (S positive). The system's overall heat capacity is measured in enthalpy. The system's unpredictability is gauged by entropy.

ΔG=ΔH-T×ΔS

ΔG=11-298×41

     = -12207KJ

Since ΔG is negative, reaction is spontaneous

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Answer: Some examples are color, density, volume and mass

Explanation:

Physical properties are anything you can smell, touch, or hear. They can be observed without changing.

The two main postulates that was given by Antoine Lavoisier are, oxygen play an important role in combustion and the other is mass of the reactant and product is conserved. Therefore the mass of HF is 28grams.

According to Law of conservation of mass, mass can neither be created nor be destroyed. Mass can only be transformed from one form to another. The law of conservation of mass was given by Antoine Lavoisier. Every reaction in nature follow the law given by Antoine Lavoisier that is mass is always conserved.

H\(_2\) + F\(_2\) → 2HF

Mass of  H\(_2\)=8Grams

mass of F\(_2\)= 20grams

According to law of conservation f mass

mass of H\(_2\) + mass of F\(_2\)   = mass of HF

Substituting all the given values, we get

8grams + 20grams =mass of HF

mass of HF=28grams

Therefore the mass of HF is 28grams.

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12.0 grams of \(Pb(NO_3)_2\) would produce 10.1 grams of \(PbCl_2\) precipitate .

To determine the number of moles of lead(II) chloride (\(PbCl_2\)) precipitate that could be produced from reacting 12.0 grams of lead(II) nitrate (\(Pb(NO_3)_2\)), we need to first write and balance the chemical equation for the reaction between these two compounds:

\(Pb(NO_3)_2 (aq) + 2NaCl (aq) = PbCl_2 (s) + 2NaNO_3 (aq)\)

From the balanced equation, we can see that one mole of \(Pb(NO_3)_2\) reacts with 2 moles of NaCl to produce one mole of \(PbCl_2\).

The molar mass of \(Pb(NO_3)_2\) is:

207.2 g/mol (Pb) + 2(14.0 g/mol) + 6(16.0 g/mol) = 331.2 g/mol

To determine the number of moles of \(Pb(NO_3)_2\) present in 12.0 grams of the compound, we can use the following formula:

moles = mass/molar mass

moles of \(Pb(NO_3)_2\) = 12.0 g / 331.2 g/mol = 0.0362 mol

From the balanced equation, we know that 1 mole of \(Pb(NO_3)_2\) reacts to produce 1 mole of \(PbCl_2\). Therefore, 0.0362 moles of \(Pb(NO_3)_2\) will produce 0.0362 moles of \(PbCl_2\)

The molar mass of \(PbCl_2\) is:

207.2 g/mol (Pb) + 2(35.5 g/mol) = 278.7 g/mol

Therefore, the mass of \(PbCl_2\) that could be produced is:

mass = moles x molar mass = 0.0362 mol x 278.7 g/mol = 10.1 g

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Answer:

0.2330 grams of solid KCl

Explanation:

In order to find KCl in grams, we need to convert from moles to moles to grams..

However, we are given the volume and the molarity, so first we will use that to convert to moles of AgNO3 (silver nitrate) and then use that to convert to moles of KCl and finally to grams of KCl..

-----------------------------------------------------------------------------------------------------------------

Step 1 -> We need to convert milliliters to liters

(25.0 ml)(\(\frac{1 L}{1000 mL}\)) = 0.025 L

Step 2 -> Convert from liters and molarity to just moles of AgNO3

(0.025 L)(0.125 \(\frac{moles AgNO_{3} }{1 ln soln}\))  =  0.003125  moles \(AgNO_{3}\)

**Liters cancel out, so just multiply across...

Step 3 -> Now that we have moles of AgNO3, we will convert to moles of KCl

We will do this using the balanced equation

We see that in the balanced equation, for every mol of AgNO3 that reacts, one mol of KCl will react too. So we will set the dimensional analysis up like the following:

(0.003125 moles AgNO3) * \(\frac{1 mol KCl}{1 mol AgNO3}= 0.00312 mol KCl\)

Step 4-> So now that we have moles of KCl, we will just convert to grams

We will do this using the molar mass (atomic mass) of KCl to convert to grams

0.00312 mol KCl * \(\frac{74.5513 grams KCl}{1 mol KCl} = 0.2329728125 grams of KCl\)

This can be rounded to 0.2330 grams of KCl

Answer:

You're answer is correct. The third answer is correct.

Explanation:

Producers have the most energy, since they gain energy directly from the sun. Their energy is then passed up this upside down pyramid, which the energy is decreased by about 10% each time.

#teamtrees #WAP (Water And Plant)

Answer: Sugar and fat

Explanation:

Answer:

Nickel Nitrate

Number of atoms of P in 802 gm of Na3PO4  is calculated to be equal to  23.254 *10^21 .

The mass in grams of 1 mole of the substance is known as molar mass. We can obtain molar mass of a substance by summing the molar masses of its component atoms. Then we can use the calculated molar mass to convert between mass and number of moles of substance.

Molar mass of P is 30.97

Number of atoms of P = 30.97/802 * 6.22 *10^23

Number of atoms of P in 802 gm of Na3PO4 = 23.254 *10^21.

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Answer: \(H_2SO_4(aq)+2KOH(aq)\rightarrow K_2SO_4(aq)+2H_2O(l)\)

Explanation:

Neutralization is a chemical reaction in which acid and base combine to form salt and water. Acids donate \(H^+\) ions and bases donate \(OH^-\) ions in water which combine to form water molecules.

The balanced molecular equation is ;

\(H_2SO_4(aq)+2KOH(aq)\rightarrow K_2SO_4(aq)+2H_2O(l)\)

Answer:

they are areas where electrons are most likely to be found in the shell of an atom

The statement states that their rms speed ratio would be (v1)rms (v2)rms Equal sqrt m2m1.

In spite of gravity and despite the amount of stuff present, a vapor is a sample of material that adopts the shape of the box in which it is housed and develops an uniform distribution inside the container.

Natural gas is an ancient fuel that formed deep inside the earth's crust. Natural gas contains a wide range of unique compounds... Methane, which is a molecule with one atom of carbon and four atoms, makes up the majority of natural gas (CH4)

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According to the question 32 g of KCI are needed to make the solution saturated at 80 C

Solution saturated is a term used to describe a solution that has reached its maximum solute concentration and can no longer dissolve any more solute. This occurs when the number of solute particles in the solution is equal to the number of solvent molecules. When the solution is saturated, any additional solute added to it will simply form a precipitate or settle out of the solution.

At 80°C, the saturation point of KCl is approximately 132 g/L, so in order to make the solution saturated, you need to add an additional 32 g of KCl. To calculate this, you can use the following equation:
(Saturation concentration at 80°C - Initial concentration at 45°C) x Volume = Additional grams of KCl
(132 g/L - 40 g/L) x 100 mL = 32 g.

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Answer:

I wish i could help but I don't understand it .so maybe someone can come and help u

Answer:

b

Explanation:

The specific heat capacity of the zinc metal, given that 2.40×10¹ g of zinc metal at 2.10×10¹ °C is added to the water is 0.27 J/gºC

First, we shall obtain the heat absorbed by the water when the zinc metal was added. This is shown below:

Q = MCΔT

= 5.60×10¹ × 4.184 × -2.1

= -492.0384 J

Now, we shall determine the specific heat capacity of the zinc metal. Details below:

Q = MCΔT

492.0384 = 2.40×10¹ × C × 76

492.0384 = 1824 × C

Divide both sides by 1824

C = 492.0384 / 1824

= 0.27 J/gºC

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Answer:

The reference ranges for blood potassium levels are as follows : Adult/elderly: 3.5-5.0 mEq/L or 3.5-5.0 mmol/L (SI units) Child: 3.4-4.7 mEq/L. Infant: 4.1-5.3 mEq/L.

Explanation:

Answer is given below

Explanation:

given data

weight = 6N

temp = 105° C

weight reduced = 5N

solution

weight of container is 1N

SO W = (6-1) = 5

And Wd = 5 - 1 = 4

so

moisture content is

moisture content = \(\frac{W-Wd}{Wd} \times 100\)       .......1

moisture content = \(\frac{5-4}{4} \times 100\)

moisture content = 25%

and

as we know density of soil soild = 2700 kg/m³

density of water = 1000 kg/m³

and sp gravity of soil =  \(\frac{2700}{1000}\)  = 2.7

so

now we get here bulk unit weight

bulk unit wt = \(Yw \times [\frac{G+e}{1+e}]\)     ..........2

bulk unit wt = \(9.01 \times [\frac{2.7 + 0.675}{1+0.675}]\)

bulk unit wt = 19.766 KN/m³

and

so dry unit wt  will be

dry unit wt = \(\frac{Ysat}{1+w}\)           ..............3

dry unit wt = \(\frac{19.766}{1+0.25}\)

dry unit wt = 15.813 kN/m³

Answer:

198 g of water (H2O).

Explanation:

What is given?

Mass of methane (CH4) = 88 g,

Molar mass of CH4 = 16 g/mol,

Molar mass of water (H2O) = 18 g/mol.

Step-by-step solution:

First, let's convert 88 g of CH4 to moles using its molar mass:

In the chemical equation you can see that 1 mol of CH4 reacted produces 2 moles of H2O, so let's see how many moles of H2O can be formed by 5.5 moles of CH4, as follows:

The final step is to convert 11 moles of H2O to grams using the molar mass of H2O, like this:

The answer would be that we can produce 198 g of water (H2O) by 88 g of methane (CH4).

Answer:

D / 15.0 g

Explanation:

3 % volume thus shows that there are 3 g of an solute in every 100mL of solutions

.. there will be 3 × 5000÷ 100 of H2O2 in a 500 mL bottle