what will be the final pressure of the system after the reaction is complete? (neglect the volume of the ammonium chloride formed.)

Answer:

Explanation:

Consider the stoichiometry of the reaction, which is the ratio of reactant particles to product particles in the reaction. So in this reaction, the stoichiometry is:

2 : 1 : 2 : 2

Therefore, if you have 30 moles of water, than you have 30 moles of sodium hydroxide, 15 moles (30÷2) of hydrogen gas, and 30 moles of sodium.

Answer:

Dependent variable

Explanation:

In every experiment, there must be a dependent variable and an independent variable.

The independent variable is that variable that you have to manipulate in order to receive a response. E.g, in the experiment described in the question, the amount of sunlight a sunflower plant receives is the independent variable.

The dependent variable is the number of seeds produced. It is the response obtained by carefully manipulating the amount of sunlight

Answer:

The law of heat conduction, also known as Fourier's law, states that the time rate of heat transfer through a material is proportional to the negative gradient in the temperature. As the temperature difference is bigger, the rate of temperature change will be bigger.

Explonation:

sorry if doesnt

help

Answer:

the anwer is glycolysis

Answer:

Covalent bond

Explanation:

(pls give me brainliest) <3

Answer:

In a chemical reaction, only atoms are present in the reactant and can end up with molecules. No new atoms are created and no more atoms are destroyed. In a chemical reaction, reactants contact with each other and the bond between atoms in the reactant is broken and atoms rearrange and form new bonds to make the product.

Explanation:

Answer:

569K

Explanation:

Q = 3.5kJ = 3500J

mass = 28.2g

∅1 = 20°C = 20 + 273 = 293K

∅2 = x

c = 0.449

Q = mc∆∅

3500 = 28.2×0.449×∆∅

3500 = 12.6618×∆∅

∆∅ = 3500/12.6618

∆∅ = 276.4220

∅2 - ∅1 = 276.4220

∅2 = 276.4220 + ∅1

∅2 = 276.4220 + 293

∅2 = 569.4220K

∅2 = 569K

When the temperature is increased, there is the increase in thermal energy of the system. The final temperature of the iron in kelvins is 570 K.

The energy is the ability to do work.

Given is the energy Q = 3.5 kJ = 3500 J, mass of sample m = 28.2 g, specific heat of iron Cp = 0.449 J(g•K).

The initial temperature in kelvins is T1 = 20°C = 20 + 273 = 293K

The heat is related to the temperature difference as

Q = m c ∆T

Substitute the values into the expression,

3500 = 28.2 × 0.449 × ∆T

3500 = 12.6618 × (T2 -T1)

T2 - T1 = 276.4220

T2 = 276.4220 K +293 K

T2 = 569.4220K

The temperature of the iron is approximately 570 K.

Thus, the final temperature of the iron in kelvins is 570K.

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Answer:

Movement of water through a living cell

Explanation:

movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.

- Merriam Webster

Answer:

Movement of a solvent through a semipermeable membrane into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.

Hope this helps!!

Answer:

As sodium and potassium both are alkali metals that belong to Group IA of the periodic table. They have one valence electron in their valence shell. As we move from top to bottom, the reactivity of metallic elements of Group IA increases.

The bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

Bond order is defined as the number of electrons in bonding molecular orbitals minus the number of electrons in antibonding molecular orbitals divided by two. As a result, we may determine the bond order of this diatomic particle by the formula: Bond order = (number of bonding electrons - number of antibonding electrons) / 2

Bond order = (8 - 5) / 2

Bond order = 1.5.

This diatomic molecule, according to the bond order, is a stable molecule since the bond order is greater than 1, indicating that it is a double bond. The molecule has an overall bond strength that is greater than a single bond, but not as strong as a triple bond. So therefore he bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

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Answer:

37%+24%+23%=84% , i wish my answer is correct

Answer: (B) −198 kJ.

Answer:

O, S, Se, Te, Po

Explanation:

O, S, Se, Te, Po are all elements found in group sixteen of the periodic table. Remember that the commonality between all the elements in the same group of the periodic table is that they all possess the same number of outermost electrons. All elements in the same group must have the same number of outermost electrons in their outermost shell.

Now, having six electrons in their outermost shell implies that they readily bond with two other atoms to complete their octet. In accordance with the octet rule. This explains why oxygen bonds with calcium by gaining two electrons in calcium oxide.

Answer:Option D

Explanation:i took the test

Answer:

See explanation

Explanation:

This conversion must go through a sequence of steps as i have shown in the image attached to this answer.

The acetone is converted to propan-2-ol using LiAlH4, THF and acid. The  propan-2-ol may be converted to propene by E2 elimination. Addition of HBr yields 2-bromo propane.

The Wurtz reaction converts 2-bromo propane to 2,3- dimethyl butane. This can be brominated in the presence of light to yield 3-bromo-2,3-dimethyl butane. Elimination of HBr using a base leads to the formation of the required product as shown.

Answer:

linear angleee

Explanation:

lol i dont know what to put here

Answer:

B) Bent

There are a lot of types of bents but this one is linear bent.

Answer:

some examples of adding energy in an everyday life is when they watch TV wash clothes heating and lighting the home taking a shower working from home on your laptop or computer running appliances and cooking residential uses of energy amounts for almost 40% of total energy use globally

Answer:

B) Methanoic Acid

Explanation:

The molar mass of FeCl3 is 162.2 g/mol.

To find the molar mass of FeCl3 (iron(III) chloride), you need to determine the atomic masses of the elements in the compound and add them up according to the number of atoms of each element in the formula.

The molar mass is expressed in grams per mole (g/mol).

The atomic masses of the elements in FeCl3 are:

Iron (Fe) = 55.85 g/mol

Chlorine (Cl) = 35.45 g/mol (the atomic mass of chlorine is based on its most abundant isotope, which has a mass number of 35)

The formula for iron(III) chloride is FeCl3, which indicates that there is one atom of iron and three atoms of chlorine in each molecule of the compound. Therefore, to calculate the molar mass of FeCl3, you can add up the atomic masses of one iron atom and three chlorine atoms:

Molar mass of FeCl3 = (1 x 55.85 g/mol) + (3 x 35.45 g/mol)

= 162.2 g/mol

Therefore, the molar mass of FeCl3 is 162.2 g/mol.

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Answer:

double replacement

Explanation:

Answer:

It is indeed double replacement

Explanation:

Answer:

100%

Explanation:

After distributing the alleles, the genotype Rr will be left in all 4 boxes of the Punnet Square.

Answer:

Coastal regions are often affected by abrasion. What process would cause increased abrasion along a costalregion? Abrasion is physical weathering caused by water, wind and gravity. The coastal regions areaffected by abrasion due to large volumes of water and increasedwinds.

Explanation:

I I hope this answer is Wright

Answer:

because they are actually moving, or because they reflect our motion through space.

Explanation:

Stars making a circular motion across the sky is evidence of the earth's rotation.

This is because when the earth rotates it appears to us like the stars are moving.

Answer:

70°C,130.9 ................,...

Ionic compounds are composed of positively charged ions (called cations) and negatively charged ions (called anions). The chemical formula of an ionic compound is written by combining the chemical symbol for the cation and the chemical symbol for the anion.

For example, the ionic compound formed by the cation sodium (Na+) and the anion chloride (Cl-), would be written as NaCl.

When writing the chemical formula for an ionic compound, the cation is written first followed by the anion. This is because the cation and anion are attracted to each other and they combine to form a neutral compound.

Naming ionic compounds follows specific rules:

In summary, to write the chemical formula of ionic compounds, one must know the ionic charges of the elements and to name them, one must know the element names and the suffix -ide, if the cation has variable charge use roman numeral to indicate its charge.

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Answer:

Just like with any other reaction, balancing the equation for the reaction is important so that people can know all the inputs and outputs, and know how much of each input (reactant) is needed to produce a certain amount of product.

Answer:

The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

so simple question.

Answer:

Potential energy is stored energy that an object has because of its position.

Explanation:

Consider an example where a ball is thrown from a tall building. The point at which the ball is at its maximum height is said to have the maximum potential energy. As the ball gradually falls down, the potential energy decreases and turns into another form of energy, kinetic energy (energy in the form of motion). The ball at its peak position had stored energy, however, as soon as it begins moving, the stored energy will become less.  

You can think of it this way where the ball has less and less distance to cover when falling downwards from the building. This shorter distance covered by the ball is proportional to the potential energy, so when the ball is about to hit the ground, the potential energy will be close to 0.

I hope this makes more sense!