Please help quickly as possible thank you :) ​

To balance the equation we start by counting the number of atoms we have of each element on each side of the reaction.

Reagents side:

Fe = 1 atom

Cl= 3 atoms

Na=1 atom

O=1 atom

H= 1atom

Products side:

Fe = 1 atom

Cl= 1 atom

Na=1 atom

O= 3 atoms

H= 3 atoms

Let's start with chlorine, we have 3 chlorine atoms on the reactant side and 1 on the product side. So we will put the coefficient 3 in the NaCl molecule to balance the chlorine.

Now, we will have:

Reagents side:

Fe = 1 atom

Cl= 3 atoms

Na=1 atom

O=1 atom

H= 1atom

Products side:

Fe = 1 atom

Cl= 3 atom

Na= 3 atom

O= 3 atoms

H= 3 atoms

Now, we balance the Na, we have 1 atom of Na in the reactants and 3 in the products. We then put coefficient 3 in the NaOH molecule.

We have now the equation balanced:

Reagents side:

Fe = 1 atom

Cl= 3 atoms

Na=3 atoms

O=3 atoms

H= 3 atoms

Products side:

Fe = 1 atom

Cl= 3 atom

Na= 3 atom

O= 3 atoms

H= 3 atoms

We have the same number of atoms of each element on both sides of the reaction.

Now, in the reaction we can notice that Cl and OH happen to substitute the place of the other, therefore, this reaction will be a double replacement reaction.

Answer:

It is combustion because C2H4 is reacting with O2, and creates CO2 and H2O

The type of chemical reaction which is given in the question is combustion reaction.

Combustion reactions are those reactions in which hydrocarbon will burn in the presence of oxygen and will form water molecules and carbon dioxide gas.

In the given chemical reaction ethene (C₂H₄) is a hydrocarbon which reacts with oxygen gas to produce water (H₂O) and carbon dioxide (CO₂), so the given reaction is combustion reaction.

Hence the given reaction is a combustion reaction.

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Answer: C

Explanation:

One mole of iron is equal to one mole of oxygen. As a result, FeO is the empirical formula for the metal oxide.

Rust has the chemical formula Fe2O3, also known as ferric oxide or iron oxide. The result is a chain of chemical processes that can be summed up as follows: The formula for rusting iron is 4Fe + 3O2 + 6H2O 4Fe (OH) 3. Water and oxygen are both necessary for the rusting process.

By deducting the mass of the iron from the overall mass of the metal oxide, we can determine the mass of oxygen that combined with the iron:

mass of oxygen = mass of metal oxide - mass of iron

mass of oxygen = 21.16 g - 16.45 g

mass of oxygen = 4.71 g

Then, using their respective molar masses, we can convert the masses of iron and oxygen to moles:

moles of iron = 16.45 g / 55.85 g/mol = 0.294 mol

moles of oxygen = 4.71 g / 16.00 g/mol = 0.294 mol

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Answer:

Mount, Charger, Colt, Pony, and Folt

Explanation:

Answer:

A stallion or a mare

Explanation:

At equilibrium, A= 0.30 M, B= 0.40 M, and C = 0.402 M.

Energy is a physical quality that makes things capable of performing work. To put it another way, it is the capacity to bring about change or carry out a task. There are various types of energy.

The equilibrium constant (K) of the reaction and the standard free-energy change for the process are connected.

G=-RT ln K

where ln is the natural logarithm, T is the temperature in kelvin (298 K for 25°C), G° is the standard free-energy change, R is the gas constant (8.314 J/mol K), and R is the gas constant.

If we rewrite this equation, we obtain:

ln K = -ΔG°/RT

Inputting the values provided yields:

ln K = -(-3060 J/mol)/(8.314 J/mol K × 298 K) = 1.207

The result of taking the antilogarithm of both sides is:

K = e^1.207 = 3.35

The equilibrium constant will result in the following relationships between the concentrations of A, B, and C at equilibrium:

K = C/AB

where [A], [B], and [C] represent the equilibrium concentrations of A, B, and C, respectively.

This equation can be used to find [C]:

3.35 = C/(0.30 M × 0.40 M)

C = 3.35 × 0.30 M × 0.40 M = 0.402 M.

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Answer:

Explanation:

Here, we want to get the charge of magnesium

Magnesium is an atom that has 12 protons and 12 electrons

Losing 2 out of the 12 electrons means it would be left with 12 protons and 10 electrons

What that means is that it would be having an excess of 2 protons

This gives it a charge of +2

Answer:

\(m_{Cd(OH)_2}=36.6 gCd(OH)_2\)

Explanation:

Hello.

In this case, for the given chemical reaction, in order to compute the grams of cadmium hydroxide that would be yielded, we must first identify the limiting reactant by computing the yielded moles of that same product, by 20.0 grams of NaOH (molar mass = 40 g/mol) and by 0.750 L of the 1.00-M solution of cadmium nitrate as shown below considering the 1:2:1 mole ratios respectively:

\(n_{Cd(OH)_2}^{by\ NaOH}=20.0gNaOH*\frac{1molNaOH}{40gNaOH} *\frac{1molCd(OH)_2}{2molNaOH} =0.25molCd(OH)_2\\\\n_{Cd(OH)_2}^{by\ Cd(NO_3)_2}=0.750L*1.00\frac{molCd(NO_3)_2}{L}*\frac{1molCd(OH)_2}{1molCd(NO_3)_2} =0.75molCd(OH)_2\)

Thus, since 20.0 grams of NaOH yielded less of moles of cadmium hydroxide, NaOH is the limiting reactant, therefore the mass of cadmium hydroxide (molar mass = 146.4 g/mol) is:

\(m_{Cd(OH)_2}=0.25molCd(OH)_2*\frac{146.4gCd(OH)_2}{1molCd(OH)_2} \\\\m_{Cd(OH)_2}=36.6 gCd(OH)_2\)

Best regards.

The mass of  Cd(OH)₂ that would be formed is 36.6 g

From the question,

We are to determine the mass of Cd(OH)₂ that would be formed

The given balanced chemical equation for the reaction is  

2NaOH(aq) + Cd(NO₃)₂(aq) → Cd(OH)₂ (s) + 2NaNO₃(aq)

This means

2 moles of NaOH reacts with 1 mole of Cd(NO₃)₂ to produce 1 mole of Cd(OH)₂ and 2 moles of NaNO₃

Now, we will determine the number of moles of each reactant present

Mass = 20.0 g

Molar mass = 39.997 g/mol

From the formula

\(Number\ of\ moles = \frac{Mass}{Molar\ mass}\)

Number of moles of NaOH present = \(\frac{20.0}{39.997 }\)

Number of moles of NaOH present = 0.50 mole

Volume = 0.750 L

Concentration = 1.00 M

From the formula

Number of moles = Concentration × Volume

∴ Number of moles of Cd(NO₃)₂ present = 1.00 × 0.750

Number of moles of Cd(NO₃)₂ present = 0.750 mole

Since,

2 moles of NaOH reacts with 1 mole of Cd(NO₃)₂

Then,

0.5 mole of NaOH will react with 0.25 mole of Cd(NO₃)₂

∴ The number of moles of Cd(NO₃)₂ that reacted is 0.25 mole

Now,

From the balanced chemical reaction

2 moles of NaOH reacts with 1 mole of Cd(NO₃)₂ to produce 1 mole of Cd(OH)₂

Then,

0.5 mole of NaOH will react with 0.25 mole of Cd(NO₃)₂ to produce 0.25 mole of Cd(OH)₂

∴ Number of moles of Cd(OH)₂ formed is 0.25 mole

Now, for the mass of Cd(OH)₂ that would be formed

From the formula

Mass = Number of moles × Molar mass

Molar mass of Cd(OH)₂ = 146.43 g/mol

∴Mass of Cd(OH)₂ formed = 0.25 × 146.43

Mass of Cd(OH)₂ formed = 36.6075 g

Mass of Cd(OH)₂ formed≅ 36.6 g

Hence, the mass of  Cd(OH)₂ that would be formed is 36.6 g

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As per the solubility graph shown, sodium nitrate is more soluble in water than potassium nitrate.

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.

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the possible quantum numbers (ordered n, ℓ, mℓ ) are:Option B.5, 3, -3 and Option C. 4, 3, -2

The quantum numbers n, ℓ, mℓ represent respectively the principal quantum number, the orbital angular momentum quantum number and the magnetic quantum number.

These are the three most important quantum numbers. T

here is another quantum number called the spin quantum number, denoted by ms.

Let's see which of the given quantum number sets is possible.2, 1, 3 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. 5, 3, -3 is possible.4, 3, -2 is possible. -4, 3, 1 is not possible.

For any value of ℓ, mℓ must be between -ℓ and +ℓ. e. 2, 1, -2 is not possible because for ℓ = 1, mℓ can only be -1, 0, or 1. f. 3, 2, 2 is not possible because for ℓ = 2, mℓ can only be -2, -1, 0, +1, or +2. g. 3, 3, 1 is not possible because for any value of ℓ, mℓ must be between -ℓ and +ℓ.

Therefore, the possible quantum numbers (ordered n, ℓ, mℓ ) are:5, 3, -34, 3, -2

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According to the research, the molecules of compound are combinations of chemical elements of different complexity, while the molecules of element are made up of atoms of the same type.

The molecules of compound are a mixture, its elements can have any proportion interrelated by chemical bonds and maintain their properties, while the molecules of element is the set of atoms of the same type that cannot be broken down into simpler ones.

The molecules of compound and an element have a fixed and defined chemical composition, belonging to pure substances, where all the particles, atoms, molecules and/or elements that compose it are exactly the same.

Therefore, we can conclude that according to the research, the molecules of compound are combinations of chemical elements of different complexity, while the molecules of element are made up of atoms of the same type.

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Answer:

The energy in cabbage leaves comes from the light from the sun.

Explanation:

The plant keeps the light (in the leaves) as energy to help make it grow.

Answer:

s+11r-15

Explanation:

The 'a' of 'penta' is deleted when it occurs before 'o' as in 'oxide,' therefore 5.270 grams of P4 are required to generate 4.6 grams of P2O5.

Many laboratory professionals are familiar with phosphorus pentoxide as a potent desiccant. It is produced by igniting elemental phosphorus in a dry air current. P2O5 can be found in a variety of crystal and amorphous forms, with crystalline P4O10 being the most prevalent.

The need for phosphorus is essential to life. It is the P in ATP, the molecule that transports energy throughout cells, and the backbone of DNA. Since phosphorus is necessary for plant growth, farmers have been providing it to their crops for thousands of years.

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1 is true

2 is d 7

3 is

            1             e

            2             b

            3             d

            4             a

            5             c

Both changing particle size and adding a catalyst can influence the reaction rate, while adding heat specifically affects the rate by increasing the kinetic energy of the reactant particles.

The correct option are A and C.

Both changing particle size and adding a catalyst can alter the reaction rate.

Changing particle size can affect the reaction rate because it influences the surface area available for the reactant particles to interact. Smaller particle sizes result in a larger surface area, increasing the frequency of collisions between particles and accelerating the reaction. Conversely, larger particle sizes reduce the surface area, leading to fewer collision events and slower reaction rates.

Adding heat can also alter the reaction rate. Increasing the temperature provides more thermal energy to the reactant particles, causing them to move faster and collide with greater energy. This enhanced kinetic energy leads to more successful collisions and an increased reaction rate.

Adding a catalyst can significantly affect the reaction rate. A catalyst provides an alternative reaction pathway with lower activation energy, enabling the reaction to occur more easily. By lowering the energy barrier, a catalyst increases the rate of reaction without being consumed or permanently altered in the process.

The correct option are A and C.

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The new volume of the container is approximately 12.96 liters.

Assuming that the temperature and pressure remain constant, we can use the ideal gas law to solve for the new volume of the container. The ideal gas law relates the pressure, volume, number of moles, and temperature of a gas as follows:

PV = nRT

where;

To solve for the new volume, we can use the following steps:

Calculate the initial number of moles of carbon dioxide in the container:

n1 = 3.5 moles

Calculate the final number of moles of carbon dioxide in the container:

n2 = 3.5 moles - 2.1 moles = 1.4 moles

Substitute the values for n1, n2, and the initial volume (V1 = 32.5 L) into the ideal gas law and solve for the final volume (V2):

P V1 = n1 R T

P V2 = n2 R T

Dividing the second equation by the first, we get:

V2 / V1 = n2 / n1

Substituting the values for n1, n2, and V1, we get:

V2 / 32.5 L = 1.4 moles / 3.5 moles

Solving for V2, we get:

V2 = (1.4 moles / 3.5 moles) * 32.5 L

V2 = 12.96 L

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Answer:

1.E25 it is the answer the answer to mass of 1×10^25 molecules of water​

Explanation:

this is just EXPLINATION find your answer using this

first divide the number of molecules by Avogadro's number 6.022*10^25

you will

l get no. of Moles of water

multiply the no. of Moles with mass of 1 Mole of water 18g per mole

if get answer you comment

you should try on your own you will understand better

The element that has chemical properties most similar to sodium is d. rubidium.

What is rubidium?

Rubidium is in the same group (group 1) as sodium in the periodic table and has similar chemical properties, such as reactivity with water and the tendency to form ionic compounds with halogens. Magnesium, oxygen, and phosphorus are not in the same group as sodium and have different chemical properties.

What is periodic table?

The periodic table is a tabular display of all known chemical elements, arranged according to their atomic structure and properties. It is arranged in rows and columns, with elements placed in order of increasing atomic number, which is the number of protons in an atom's nucleus. The periodic table is a powerful tool for predicting the chemical behavior of elements and for understanding the relationships between different elements. It is used extensively in chemistry, physics, and other sciences to help understand the properties and behavior of different elements, and to guide research and development in many different fields.

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Answer: A) The amount of product measured after a reaction

A statement which best defines the actual yield of a reaction is "The amount of product measured after a reaction" Hence, Option (A) is correct

Yield of any chemical reaction gives idea about the amount of product that is produced by the chemical reaction between reactants.

Actual yield gives idea about the how much yield of any product will be produced in the given chemical reaction by using the stoichiometry of the reaction.

Therefore, A statement which best defines the actual yield of a reaction is "The amount of product measured after a reaction" Hence, Option (A) is correct

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When a jar containing saline solution is exposed to sunlight, its liquid content gradually diminishes and eventually forms crystals as a result of the evaporation process.

The energy from the sun's heat accelerates the movement of molecules in saltwater, which leads to their subsequent release from the liquid surface as water vapor. As a result of this process, the moisture transforms into gas and ascends, scattering throughout the atmosphere.

The concentration of salt in the remaining liquid increases as water evaporates from saltwater, as salt is unable to evaporate like water. As time passes, the salt concentration within the water triples to a point where it becomes incapable of remaining dissolved and commences the process of crystal formation.

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The measure of the length of events and the duration of intervals between events is time.

The duration of events or the gaps between them can be measured, compared, or even ordered using time. The lengthy period of time that the Earth's geologic history takes up is known as geologic time. Starting at the beginning of the Archean Eon  formal geologic time runs until the present. Geology is defined as the "Science of the Earth."

Geology is the fundamental Earth science that examines how the earth created, its structure and composition, and the various forces acting on it. It is sometimes known as geoscience or earth science.

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Answer:

Which best describes a difference between energy transformations in power plants and dams? Only power plants use fossil fuels to transform energy. Only dams use fission to generate thermal energy. ... Only dams use mechanical energy to produce electricity.

Explanation:

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Answer:

12%

Explanation:

Answer:

3-12%

Explanation:

Im not completely sure if this is accurate, but hope with somewhat helps.

Answer:

Filter it

Explanation:

The Safety Data Sheet (SDS) for regular bleach can be obtained from the manufacturer or supplier of the specific brand or product. It contains important information regarding the hazardous properties, handling, storage, and emergency procedures related to the bleach.

An SDS typically includes details such as the product's chemical composition, physical and chemical properties, potential hazards to health and the environment, precautionary measures for safe handling and storage, first-aid procedures, and information about proper disposal. It also provides guidance on personal protective equipment (PPE) to be used when handling the product and steps to take in case of accidental release or exposure.

The SDS serves as a crucial resource for understanding the potential risks associated with the use of regular bleach and helps ensure that appropriate safety measures are implemented. It is important to review and follow the information provided in the SDS to minimize the risk of accidents, injuries, or adverse health effects associated with the use of the product.

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Answer:

A pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample. Mixtures are physical combinations of two or more elements and/or compounds.