If 44. 0 grams of sodium reacts with 10. 0 grams of chlorine gas, how many grams of sodium chloride could potentially be formed?


i need the answer asap

Answer:

Chlorophyll.

Explanation:

Chlorophyll is also why plants are green.

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Chloroplasts are the food producers of the cell. The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells.

:)

CsNO₂ which is known as cesium nitrite, is an ionic compound formed when the metal cesium, which is an alkali metal reacts with NO₂⁻ ion.

Ionic compounds are compounds composed of positively charged ions and negatively charged ions held together by electrostatic attraction. They are formed through the transfer of electrons from one atom to another, typically between a metal and a nonmetal or between a metal and a polyatomic ion.

In CsNO₂, the cesium cation (Cs⁺) and the nitrite anion (NO₂⁻) are held together by ionic bonds, where the metal donates electrons to the nonmetal or polyatomic ion.

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After selecting the hypothesis, the next step is to design an experiment to test the hypothesis.

For example, our hypothesis is "deforestation causes soil erosion".

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A nail made from the metal iron.

You feel heat from a campfire: Radiation

A mug filled with a hot beverage warms your hands: Conduction

A heat lamp keeps baby chicks warm: Radiation

Warm water moves from the bottom of a pot to the top: Convection

Thunderclouds form in the atmosphere: Convection

A snowball melts in your hands: Conduction

A hot dog cooks over a campfire: Conduction

A cool breeze blows onto the beach on a hot day: Convection

The Sun causes snow to sublimate on a clear winter day: Radiation

A spoon placed in a cup of hot tea becomes hot to the touch: Conduction

Heat can be transferred through three different methods: conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between two objects. Convection is the transfer of heat by the movement of a fluid, such as air or water. Radiation is the transfer of heat through electromagnetic waves.

In the given situations, the heat transfer by radiation occurs from the campfire, heat lamp, and sun. Conduction occurs when you feel the warmth of a hot beverage or the hot dog cooking over the campfire. Convection occurs in the atmosphere, where warm air rises, and cool air falls, leading to thundercloud formation, or when warm water moves from the bottom of a pot to the top.

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The shorthand equation shows us in a glance what happens in the electrochemical reaction. For a lead storage battery, we have; PbSO4(s)/H2O//Pb (s) ,PbO2(s) /H2SO4

An electrochemical reaction is one in which electrical energy is produced from a chemical reaction. The equations in a lead storage battery are;

Anode: Pb (s) + HSO4- → PbSO4(s) + H+ + 2 e-

Cathode: PbO2(s) + HSO4- + 3 H+ + 2 e- → PbSO4(s) + 2 H2O

Overall: Pb (s) + PbO2(s) + 2 HSO4- + 2 H+ → 2 PbSO4(s) + 2 H2O

Hence, the shorthand notation of this reaction is;

PbSO4(s)/H2O//Pb (s) ,PbO2(s) /H2SO4

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Explanation:

atomic no. is 42

chemical symbol is Mo

no. of protons is 42

atomic mass is 95.95

no. of electrons is 42

no. of electron in outer most shell is 1

no of electrons in the n 3 shell is 18

no. of neutron is 96

The element molybdenum is 42nd element in periodic table with the symbol Mo and  a mass of 96. It have 42 electrons and 42 protons.

Molybdenum (Mo) is a transition metal in periodic table included in the d-block. The atomic number of molybdenum is 42 which is the number of protons and electrons in it.

The atomic number of a neutral atom is equal to the number of electrons in it. For a neutral atom the number of electrons and protons are equal and thus the number of both electrons and protons in Mo is 42.

Mass number is the sum of number protons and neutrons in an atom. The mass number of Mo is 96 and number of protons is 42. Thus, the number of neutrons is 96 -42 = 54.

The outer shells of Mo are 4d and 5s containing 4 and 2 electrons respectively. Thus the number of outer electrons is 6.The level n= 3 is M shell which contains 18 electrons for Mo.

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Answer:

Revolution of Guadlupe

Explanation:

Answer:

The difference in potential energy between the reactants and products

Explanation:

The difference in potential energy between the reactants and products reveals the enthalpy of reaction, hence option B is correct.

The change in the enthalpy of a chemical reaction that takes place at constant pressure is known as the heat of reaction also known as the enthalpy of reaction. It is a unit of measurement for thermodynamics.

In a thermodynamic system, energy is measured by enthalpy. Enthalpy is a measure of a system's overall heat content and is equal to the system's internal energy plus the sum of its volume and pressure.

The difference between  total product and total reactant molar enthalpies, computed for substances in their standard states, is the standard enthalpy of reaction for a chemical reaction.

Therefore, the difference in potential energy between the reactants and products reveals the enthalpy of reaction, hence option B is correct.

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According to the first law of thermodynamics, the change in internal energy (δe) is equal to the heat added to the system (q) minus the work done by the system (w).

At constant volume, the work done by the system is zero, so the equation simplifies to δe = qv. This shows that the change in internal energy is directly related to the heat added at constant volume. Similarly, at constant pressure, the change in enthalpy (δh) is equal to the heat added to the system (qp) minus the work done by the system (w).

Since the work done by the system is equal to the pressure times the change in volume (w = pδv), the equation can be rearranged to δh = qp - pδv. At constant pressure, the change in enthalpy is directly related to the heat added at constant pressure.

The relationship between δh and δe can be found by substituting the equation for work (w = pδv) into the first law of thermodynamics equation (δe = q - w):

δe = q - pδv
Since δh = qp - pδv, we can rearrange the equation to get:
δh = δe + pδv
This shows that the change in enthalpy is equal to the change in internal energy plus the pressure times the change in volume.

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Answer:

159.7 g Fe2o3/1 mol Fe2o3

Aluminum fluoride is the name of the following ionic compound. The recognised authority on chemical terminology and nomenclature is IUPAC.

IUPAC is the widely acknowledged authority on chemical terminology and nomenclature, and two IUPAC organisations play key roles in this activity: The Interdivisional Commission on Terminology, Nomenclature, as well as Symbols and Division VIII - Chemical Nomenclature or Structure Representation. Unambiguous, uniform, and reliable nomenclature as well as terminology for particular scientific fields are developed by IUPAC as one of its main activities. These recommendations are typically presented as glossaries of terms for particular chemical disciplines. Aluminum fluoride is the name of the following ionic compound.

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The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer:

The law of reciprocal proportions states that if two elements react individually with a given weight of a third element, the ratio of the masses with which they combine with the third element are either the same or a simple multiple of the ratio of the masses with which they combine with each other

The compounds formed includes;

1) Nitric oxide, NO

Nitrogen = 46.66% × 30.01 = 14

Oxygen = 53.34% × 30.01 = 16

2) Water, H₂O

Hydrogen = 11.21% × 18.01528 = 2

Oxygen = 88.79% × 18.01528 ≈ 16

3) Ammonia, NH₃

Hydrogen = 17.78% × 17.031 ≈ 3

Nitrogen = 82.22% × 17.031 ≈ 14

The ratio of nitrogen to oxygen in nitric oxide = 14:16 = 7:8

The ratio of nitrogen to hydrogen in ammonia = 14:3

The ratio in which hydrogen and oxygen combine with nitrogen = 3/16

The ratio of hydrogen and oxygen combine with each other in water = 2/16

Therefore, the ratio with which hydrogen and oxygen combine with nitrogen, is (2/3) times the ratio with which they combine with each other, which verifies the law of reciprocal proportions

Explanation:

Dietary protein will not be digested if Hcl were not being produced in sufficient quantities.

In the stomach, there are some glands found on the stomach lining that helps to release hydrochloric acid (HCl). Their major role is to dissolve food and produce an acidic medium.

The acidic media promotes and improves the conversion of pepsinogen to pepsin. Pepsin acts as an enzyme that supports protein digestion.

Protein digestion requires a pH of around 1.8 which can be achieved by the secretion of HCl.

As a result, if HCI is not released in the stomach in sufficient quantities, pepsin will not be activated and it would have a detrimental impact on protein digestion.

Therefore, we can conclude that dietary protein will not be digested if Hcl were not being produced in sufficient quantities.

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The number of mole of HCl required to neutralize all 0.05 mole of Ca(OH)₂ is 0.1 mole

Ca(OH)₂ + 2HCl —> CaCl₂ + 2H₂O

From the balanced equation above,

1 mole of Ca(OH)₂ required 2 moles of HCl

From the balanced equation above,

1 mole of Ca(OH)₂ required 2 moles of HCl

Therefore,

0.05 mole of Ca(OH)₂ will require = 0.05 × 2 = 0.1 mole of HCl

Thus, 0.1 mole of HCl is needed for the reaction

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To determine the pH of the solution, we need to first calculate the concentration of propionic acid and sodium propionate in the solution.

Propionic acid has a molar mass of 74.08 g/mol, so 1.00 g is equal to 0.0135 mol.

Sodium propionate has a molar mass of 96.06 g/mol, so 1.0 g is equal to 0.0104 mol.

We can assume that all of the propionic acid will dissociate in water to form propanoate ions and hydrogen ions, according to the following equation:

CH3CH2COOH + H2O ↔ CH3CH2COO- + H3O+

The equilibrium constant for this reaction is Ka = 1.3 x 10^-5.

We can set up an ICE table to determine the concentration of propanoate and hydrogen ions:

Initial:     0.0135 M            0                 0
Change:     -x                    +x               +x
Equilibrium: 0.0135 - x         x                 x

Using the Ka expression, we can write:

Ka = [CH3CH2COO-][H3O+] / [CH3CH2COOH]

1.3 x 10^-5 = x^2 / (0.0135 - x)

Since x is small compared to 0.0135, we can simplify this to:

1.3 x 10^-5 = x^2 / 0.0135

Solving for x, we get:

x = 2.07 x 10^-4 M

Therefore, [H3O+] = 2.07 x 10^-4 M and [CH3CH2COO-] = 2.07 x 10^-4 M.

Now, we can calculate the concentration of sodium propionate by dividing the moles by the volume of the solution:

0.0104 mol / 0.5 L = 0.0208 M

Since sodium propionate completely dissociates in water to form propanoate ions and sodium ions, the concentration of propanoate ions is equal to the concentration of sodium propionate:

[CH3CH2COO-] = 0.0208 M

To calculate the pH, we can use the equation:

pH = -log[H3O+]

pH = -log(2.07 x 10^-4) = 3.68

Therefore, the pH of the solution is approximately 3.68.

The closest answer choice is (A) 3.78, so that would be the best choice.

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The final volume of the gas is 209.35 mL.

To find the final volume, we can use the formula W = P * ΔV, where W is the work done, P is the pressure, and ΔV is the change in volume.

We can rearrange the formula W = P * ΔV to solve for ΔV:

ΔV = W / P.

Substituting the given values,

ΔV = 147 J / (1.04 atm) = 141.35 mL.

To find the final volume, we add the change in volume to the initial volume:

Final volume = Initial volume + ΔV = 68.0 mL + 141.35 mL = 209.35 mL.

So, the final volume of the gas is 209.35 mL.

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An atom is held together by three forces: the strong nuclear force, the electromagnetic force, and the weak nuclear force.

The strong nuclear force is the strongest of the three forces and is responsible for binding the protons and neutrons together in the nucleus of an atom. The strong nuclear force is a short-range force that acts only over a very small distance, and it is strong enough to overcome the repulsive forces between the protons, which are positively charged particles.

The electromagnetic force is the second strongest of the three forces, and it is responsible for binding the electrons to the nucleus of an atom. The electromagnetic force is a long-range force that acts over a larger distance than the strong nuclear force, and it is caused by the attraction between opposite charges (positive and negative).

The weak nuclear force is the weakest of the three forces, and it is responsible for certain types of radioactive decay, such as beta decay. The weak nuclear force is a short-range force that acts only over a very small distance, and it is much weaker than the strong nuclear force and the electromagnetic force.

Overall, the three forces at work that hold an atom together are the strong nuclear force, the electromagnetic force, and the weak nuclear force. These forces act at different ranges and with different strengths, but they all play a crucial role in maintaining the stability and integrity of an atom.

Answer:

The correct answer is quantitative data.

Explanation:

The value of data in the form of numbers of counts where each set of data exhibits a specific numerical value associated with it is termed as quantitative data. This information refers to any quantifiable knowledge, which can be used for statistical analysis and mathematical calculations so that decisions of real-life can be taken based on the mathematical outcomes. The quantitative data is used to find the solutions of the queries like how often, how much, or how many.  

In the given case, a botanist measured the growth of the plant for two weeks, and the outcome came in the form of numerical value. Thus, the knowledge she collected is known as quantitative data.  

Answer:

it helps in respiration

To solve this problem, we could use the Boyle's law since there's a sample of ideal gas and temperature is constant.

Boyle's law tells us that:

Replacing the values of the problem:

The new volume V equals 5.6L.

Answer: 27

Explanation: so if u divide the thingy from the thingy to a thingy u get a thingy

Answer:

the Ray's go right through it

Explanation:

the Ray's are so small they punch right through them

Answer:

Explanation:

The reason why is based in something called the plasma frequency of the metal of a mirror. A metal, as you may know, is composed of a series of atom (ion, effectively) cores - nuclei, together with some, but not all, of their bound electrons - which contribute the remaining outermost electrons of their unbound forms to a communally shared "electron sea" - kind of like a giant, distributed omnidirectional covalent bond that extends all throughout the whole metal crystal (here we're just considering a single crystal for simplicity). The electrons are quantumed out all over the full extent of the crystal and effectively form a sort of "gas" throughout and permeating the metal.

When an electromagnetic wave approaches that gas, the free charges within it - the electrons - start oscillating, and as they do so, they set up another wave going outward at the same time as the first is going in. This begins as soon as the first wave begins to impinge.

However, if the wave oscillation is fast enough, the electrons can't keep up due to their mass, and thus they are unable to form the reflected wave. The frequency at which this occurs is called the metal's plasma frequency (and is inversely proportional to the square root of the mass, so that a high mass particle would have a lower plasma frequency). The name comes from the fact that the metal can be thought of in a sense as a kind of "solid plasma" - ions with free electrons, the difference with what most people think of as a "plasma" being here the ions are not free to move about of their own accord.

Answer:

Limiting reactant: lead(II) nitrate (Pb(NO3)2).

Mass of sodium nitrate (NaNO3) = 12.92 g.

Explanation:

What is given?

Mass of lead (II) nitrate (Pb(NO3)2) = 25 g.

Mass of sodium iodide (NaI) = 30 g.

Molar mass of Pb(NO3)2 = 331 g/mol.

Molar mass of NaI = 150 g/mol.

Molar mass of sodium nitrate (NaNO3) = 85 g/mol.

Step-by-step solution:

First, let's state the balanced chemical equation. Lead (II) nitrate (Pb(NO3)2) reacts with sodium iodide (NaI) in a double-replacement reaction to produce sodium nitrate (NaNO3), and PbI2:

Now, let's calculate the number of moles of each reactant using its molar mass. The conversion from grams to moles for Pb(NO3)2 will look like this:

And for NaI:

The next step is to see how many moles of NaNO3 are being produced. We're going to need the chemical equation: let's start with Pb(NO3)2. 1 mol of Pb(NO3)2 reacted produces 2 moles of NaNO3, so we will obtain:

And now, let's see that 2 moles of NaI reacted produce 2 moles of NaNO3, so the molar ratio between these compounds is 1:1, which means that 0.20 moles of NaI reacted will produce 0.20 moles of NaNO3 too:

Based on these calculations, you can note that the limiting reactant would be Pb(NO3)2 because this compound imposes the limit because is being consumed first, it is producing the maximum amount of NaNO3 that we can produce in this reaction.

The final step is to calculate the mass of NaNO3 that is being produced. Remember as Pb(NO3)2 is the limiting reactant and it produces 0.152 moles of NaNO3, we use this data to find the mass of NaNO3 using its given molar mass too, like this:

The answer is that the limiting reactant is lead (II) nitrate (Pb(NO3)2) and we're producing 12.92 g of sodium nitrate (NaNO3).

Answer:

19.3g of water

Explanation:

molar mass of SnO2 is 118.71+16×2

SnO2----150.71.

150.71g of SnO2--------------2(2+16)g of water

150.71g---------------------------36g of water

80.8g-----------------------------x

cross multiply

150.71×x=80.8g×36g

x=2908.8g²÷150.71g

x=19.3g

19.3g of water will be produced

To prepare a 0.2000 M solution of copper(II) sulfate pentahydrate in 250.0 ml, you would need 15.90 grams of the compound.

To calculate the mass of copper(II) sulfate pentahydrate needed, we can use the formula:

Mass (g) = Molarity (mol/L) × Volume (L) × Molar mass (g/mol).

Given:

Molarity (M) = 0.2000 M

Volume (L) = 250.0 ml = 0.2500 L (since 1 L = 1000 ml)

Molar mass of copper(II) sulfate pentahydrate (CuSO4 · 5H2O) = 249.68 g/mol

Plugging in these values into the formula, we have:

Mass = 0.2000 mol/L × 0.2500 L × 249.68 g/mol = 15.90 g.

Therefore, to prepare a 0.2000 M solution of copper(II) sulfate pentahydrate in 250.0 ml, you would need approximately 15.90 grams of the compound.

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