What is the charge on an atom after it gains two electrons during the formation of a bond?

One positive charge
Two positive charges
Two negative charges
One negative charge

Considering the definition of synthesis and decomposition reaction, the reaction 2 HCI → H₂ + Cl₂ is considered as a decomposition reaction.

Synthesis or combination reactions occur when two or more reactants form a single product; heat is usually released (exothermic reaction).

The general form of the equation for this type of reaction is the following:

A + B → AB

In a decomposition reaction, a single substance breaks down, producing two or more different substances. This type of reactions can be considered the inverse of synthesis reactions. Heat is usually needed for the reaction to occur.

The general form of these equations is as follows:

AB → A + B

The reaction 2 HCI → H₂ + Cl₂ is considered as a decomposition reaction because hydrochloric acid molecule breaks down to produce hydrogen gas and chlorine gas.

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The empirical formula of the compound with 14.3% Nitrogen, 4.1% Hydrogen, and 81.6% Bromine would be \(NH_4Br\).

The compound contains 3 atoms of different elements according to the following percentage:

Let's find the mole equivalent of each percentage:

Divide by the smallest mole:

Thus, the empirical formula of the compound is \(NH_4Br\).

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A molecule is essentially created by a collection of atoms linked by a network of bonds.

1. The forces on the same cart at rest are the gravitational force (weight), which acts downward, and the normal force, which acts upward to support the weight of the cart and any objects inside it.

2. The net force on the cart would be 20.0 newtons (40.0 N pushing force - 20.0 N friction force = 20.0 N net force). The cart may not move at a constant velocity over the spilled margarine due to the decrease in friction force.

3. The normal force on the shopping cart after 75 newtons of groceries are added would increase to support the additional weight of the groceries.

4. The force that accelerates the cart down the ramp is the component of the gravitational force that acts parallel to the ramp, which is known as the force of gravity or weight.

5. The friction force on the cart when it is rolling along the blacktop parking lot would likely be greater than the friction force on the cart when it is inside the grocery store, as blacktop is generally rougher and less smooth than smooth vinyl tile.

6. It is easier to get one empty cart moving because it has less mass and inertia than a line of 20 empty carts. Inertia is the tendency of an object to resist changes in its motion, and it increases with mass. Therefore, it requires more force to overcome the inertia of a line of 20 carts than that of a single cart.

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Gravitational force and normal force acts on the same cart at rest and it is worth noting that the gravitational force on an object at rest on a flat surface is equal to the normal force on that object.

What about the net force and the normal force relative to the cart?

The cart's net force would be 20.0 N (40.0 N - 20.0 N = 20.0 N net force). Because of the decrease in friction force, the cart may not move at a constant velocity over the spilled margarine. Also, it is to be noted that the normal force on the cart would increase after 75 N of groceries were added to support the additional weight of the groceries.

What about the frictional force on the cart?

Because blacktop is generally rougher and less smooth than smooth vinyl tile, the friction force on the cart while rolling along the blacktop parking lot is likely to be greater than the friction force on the cart while rolling inside the grocery store. It is easier to move one empty cart than a line of 20 empty carts because it has less mass and inertia. Inertia is an object's tendency to resist changes in motion, and it increases with mass.

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0.8mole/L is concentration of N2O5.

As the reaction is first order ,

so the order with respect to N2O5 is 1.

general,

Rate of equation is written as

rate = k [N2O5]^1

k is the rate constant = 3 * 10 ^ - 5 * S ^ - 1

rate = 2.4*10^-5 mole/L

N2O5 is concentration term

2.4*10^-5 mole/L  = 3 * 10 ^ - 5 * S ^ - 1 [  N2O5]

 N2O5 = [0.8 mole/L]

=0.8mole/L

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The mass of water that is formed is 20 grams of water.

A decomposition reaction is one in which a substance is broken down to give its components. The decomposition would lead to the formation of the substances that were combined to obtain the decomposed substance.

From the law of conservation of mass, we know that the total mass in the system does not change. This implies that the mass of the reactants must be equal to the mass of the products.

If the mass of the ammonium nitrite is 34 grams then the mass of the water that is formed simultaneously is; 34 - 14 = 20 grams of water.

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Answer: (A,B,D) [1, 2, 4]

Explanation:

Answer:

I think its C

Explanation:

The freezing point of the solution containing 0.867 m glycerin is -1.61442 °C. Option C is correct

The mass of glucose in 505 mL of 10.5% glucose solution is 53.01 g or 5.30 x 10^2 g.

Option C is correct

To find the freezing point depression of the solution containing 0.867 m glycerin:

ΔTf = Kf * molality

ΔTf = (1.86°C/m) * 0.867 m

ΔTf = 1.61442 °C

The freezing point depression is 1.61442 °C.

The freezing point of the solution is:

Freezing point = 0.0 °C - ΔTf

Freezing point = 0.0 °C - 1.61442 °C

Freezing point = -1.61442 °C

To find the mass of glucose in 505 mL of 10.5% glucose solution:

Mass of glucose = Volume of solution * Density of solution * % mass

Mass of glucose = 505 mL * 1.04 g/mL * 10.5%

Mass of glucose = 53.01 g

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Answer:

erty45554y

Explanation:

Answer:

2.28 atm

Explanation:

V₁ = 2.33L,  V₂ = 1.08L

T₁ = 289K,  T₂ = 304K

P₁ = 1.05 atm, P₂ = ?

Where V₁ and V₂ are initial and final volume respectively

T₁ and T₂ are initial and final temperature respectively

P₁ and P₂ are initial and final pressure respectively

The formula to be used here is the general gas equation:

P₁V₁/T₁=P₂V₂/T₂

1.05 × 2.23/289 = P₂ × 1.08/304

P₂ × 1.08 × 289 = 1.05 × 2.23 × 304

P₂ = (1.05 × 2.23 ×304) ÷ (1.08 × 289)

P₂ = 711.82 ÷ 312.12

P₂ = 2.28 atm

The percent by mass of 110.6 g of potassium fluoride (NaF) dissolved in 1500.0 g of water is 0.073733 %.

The mass percent of a solution is defined as the ratio of the mass of solute that is present in a solution, relative to the mass of the solution, as a whole.

\(\rm\;Mass \;percentage =\frac{\;Mass \;of \;solute}{\;Mass \;of \;solution}\)

Calculate the mass percent of potassium fluoride, using the formula:

\(\rm\;Mass \;percentage =\frac{\;Potassium \;fluoride}{\;Mass \;of \;Water}\)

\(\rm\;Mass \;percentage =\frac{110.6}{1500.0}\)

Mass percentage = 0.073733 %

Hence,  the percent by mass of 110.6 g of potassium fluoride (NaF) dissolved in 1500.0 g of water is 0.073733 %.

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Answer:

One Faraday is the charge of one mole of electrons, which is approximately 96,500 coulombs. To calculate the number of Faradays needed to reduce 127 grams of copper to the cuprous form in chlorine, we need to know the balanced chemical equation for the reaction and the equivalent weight of copper.

Explanation:

Option B: Kinetic Energy is the energy that exists because something is moving.

Answer:

EDG 2020

Explanation:

It comes from older rocks,It forms from sediments,it is one of the main 3 rocks, con form from materials solidified from solution.

Answer:

It comes from older rocks.

It forms from sediments.

It is one of the three main types of rocks.

It can form from materials solidified from solutions,

Explanation:

At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

1: Write the balanced chemical equation:

\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)

2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.

Initial:

\(C_O\)(g) = 0.3500 mol

\(Cl_2\)(g) = 0.05500 mol

\(C_OCl_2\)(g) = 0 mol

Change:

\(C_O\)(g) = -x

\(Cl_2\)(g) = -x

\(C_OCl_2\)(g) = +x

Equilibrium:

\(C_O\)(g) = 0.3500 - x mol

\(Cl_2\)(g) = 0.05500 - x mol

\(C_OCl_2\)(g) = x mol

3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:

Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]

4: Substitute the given equilibrium constant (Kc) value into the expression:

1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)

5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:

1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x

6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.

7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.

8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):

\(Cl_2\)(g) = 0.05500 - x

9: Calculate the value of \(Cl_2\)(g) at equilibrium:

\(Cl_2\)(g) = 0.05500 - x

\(Cl_2\)(g) = 0.05500 - (positive value of x)

10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.

Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

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371.4 g of glucose must be metabolized to produce 223 g of water.

The balanced chemical equation for the complete combustion of glucose is:

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

According to the equation, for every 1 mole of glucose consumed, 6 moles of water are produced.

The molar mass of glucose is:

6(12.01 g/mol) + 12(1.01 g/mol) + 6(16.00 g/mol) = 180.18 g/mol

To calculate the mass of glucose required to produce 223 g of water, we need to first convert the mass of water to moles:

223 g / 18.015 g/mol = 12.38 mol H₂O

Now we can use the mole ratio from the balanced equation to calculate the moles of glucose required:

1 mol glucose / 6 mol H₂O = x mol glucose / 12.38 mol H₂O

x = 2.06 mol glucose

Finally, we can calculate the mass of glucose:

mass = moles × molar mass

mass = 2.06 mol × 180.18 g/mol = 371.4 g

Therefore, 371.4 g of glucose must be metabolized to produce 223 g of water.

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This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97. The incorrect representation for a neutral atom is 36Li

To determine the correct representation for a neutral atom, we need to consider the atomic number (Z) and mass number (A) of the element. The atomic number represents the number of protons in the nucleus, while the mass number represents the sum of protons and neutrons.

Let's analyze the given representations:

36Li:

This representation suggests that the element is lithium (Li) with a mass number of 36, which is incorrect. The correct mass number for lithium is approximately 6.94.

613C:

This representation suggests that the element is carbon (C) with a mass number of 13, which is correct. Carbon has different isotopes, and 13C represents one of its stable isotopes.

3063Cu:

This representation suggests that the element is copper (Cu) with a mass number of 63, which is correct. Copper has different isotopes, and 63Cu represents one of its stable isotopes.

1530P:

This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97.

Therefore, the incorrect representation for a neutral atom is 36Li, as it does not match the known properties of lithium.

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Height of a mountain is 5348.9 meter.

1 kilometer is equal to 1000 meter.

The meter, symbol m, is the primary unit of period in the international system of gadgets, although its prefixed paperwork also are used relatively regularly.

A meter is a general metric unit identical to about three feet 3 inches. This means that a meter is part of the metric gadget of dimension. Guitars, baseball bats, and backyard sticks are examples of items which might be approximately one meter lengthy. Meters also are used to measure distances in races, inclusive of strolling and swimming.

Meter readings tell power suppliers how a lot gasoline and energy you are the use of. In case you do not give your provider meter readings they may have to guess your usage. You typically turn out to be paying too much or too little while this occurs.

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When the molecules shown are vaporized, the speed of molecule A will be greatest because of its relatively small size.

When a molecule is vaporized, its size can affect its speed in a couple of ways. The speed of a molecule is related to its kinetic energy, which is influenced by factors such as temperature and mass.

When comparing two molecules that have been vaporized at the same temperature, the smaller molecule will tend to have a higher speed than the larger molecule.

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Explanation:

Acids are substances that release positive hydrogen ions or protons (cations or anions) in an aqueous solution; for this reason, they are known as “proton donors”. In addition, acids react with bases, forming salts and water in a reaction called the “neutralization reaction”.

The more the number of hydrogen ions present in the acid, stronger it is.

Answer: the amount of hydrogen ions present in the acid

As a question-answering bot, my response to the following question is: The chemical equation for photosynthesis and respiration Photosynthesis Photosynthesis is the process by which autotrophic organisms, such as green plants, algae, and certain bacteria, generate organic matter from inorganic materials like water and carbon dioxide.

Sunlight, chlorophyll, and other pigments are used to convert light energy into chemical energy during this process. Plants use the oxygen generated in photosynthesis to sustain their respiratory processes as well as release it into the air. The chemical equation for photosynthesis is:6CO2 + 6H2O → C6H12O6 + 6O2 Carbon dioxide + water → glucose + oxygen Respiration Respiration is the process by which cells generate energy in the presence of oxygen (aerobic) or without oxygen (anaerobic). Glucose and oxygen are converted into carbon dioxide and water during respiration, which releases energy. The chemical equation for respiration is:C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP Glucose + oxygen → carbon dioxide + water + energy (ATP) The process of respiration is essential for the survival of all living organisms, as it provides the energy necessary for cellular activities. The process of photosynthesis and respiration are opposites of each other, with the former being an endothermic reaction and the latter being an exothermic reaction.

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80 g of 15% solution and 120 g of 20% solution are needed to prepare 200 g of 17% solution.

What is Mass Percentage?

Mass percentage is the percentage of the mass of the solute in a solution to the total mass of the solution. It is calculated by dividing the mass of the solute by the total mass of the solution and multiplying by 100%. The mass percentage is often used in chemistry to express the concentration of a solution.

Let x be the mass of the 15% solution needed and y be the mass of the 20% solution needed to prepare 200 g of 17% solution. Then we have the system of equations:

x + y = 200 (total mass of the solution)

0.15x + 0.20y = 0.17(200) (total amount of solute in the solution)

Solving for x and y, we get:

x = 80 g of 15% solution

y = 120 g of 20% solution

Therefore, 80 g of 15% solution and 120 g of 20% solution are needed to prepare 200 g of 17% solution.

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Finding and examining search phrases that people enter through search engines for the purpose to utilise that information is the process of conducting keyword research.

The phrases and words that people employ when using search engines in order to locate what they're searching for are known as keywords. For instance, you may type "mens leather coat" into a search engine to get a new jacket. The phrase is still regarded as a keyword even though it has numerous words.

Keywords are concepts and themes that describe the subject matter of your article. They are the phrases and words that users type into search engines to find information, commonly referred to as "search queries" within SEO. If you scale down the size of all the content on your page, including the images, videos, prose, and so on.

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Answer:

idek

Explanation:

Explanation:

giving equal opportunity,making good governance, maintaining peace and harmony among people, other try to write by your self

Answer: 1.1 kg

Explanation:

Mw CO2 is 44g —> 6.02214076*10^23 molecules

1.5*10^25 molecules —> 1.1 kg

The molar mass of saccharin is 0.900 g / [Sac].

Saccharin is a weak organic base with a K​b of 4.80 × 10-3 and we are given that a 0.900-g sample of saccharin dissolved in 45.0mL of water has a pH of 12.310.

We are supposed to calculate the molar mass of saccharin.

The formula for finding the molar mass of a substance is:Molar mass = (mass of substance) / (number of moles).

We are given that the Kb of saccharin is 4.80 × 10-3.

Since it is a base, it reacts with water to form the conjugate acid of saccharin (HSac) and hydroxide ions (OH-).

The balanced chemical equation for this reaction is: C7H4NO3S + H2O → HSac + OH-.

We can use the Kb value to find the concentration of the hydroxide ions produced:Kb = [HSac][OH-] / [Sac].

Initial concentration of saccharin, [Sac] = (0.900 g) / (Molar mass) = 0.900 / M Molar mass = 0.900 / [Sac].

Now we can use the given pH value to find the concentration of the hydroxide ions using the expression:pH = 14 - pOHpOH = 14 - pH[OH-] = 10^-pOH.

Substitute these values in the expression for Kb and solve for [HSac]:Kb = [HSac][OH-] / [Sac][HSac] = (Kb x [Sac]) / [OH-]

Now we can substitute the values we have into the expression for the molar mass:Molar mass = (mass of substance) / (number of moles)Number of moles = [Sac]Molar mass = 0.900 / [Sac].

Therefore, the molar mass of saccharin can be calculated by first finding the concentration of hydroxide ions produced using the pH value, then using the Kb value to find the concentration of the conjugate acid of saccharin, and finally using these values to find the molar mass of saccharin using the formula Molar mass = (mass of substance) / (number of moles).

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Answer:

Explanafgr7tfgt4ttion: