Based on the equation below,how many grams of nitrogen gas, N2 will be produced from the decomposition of 23.0 grams of sodium azide, NaN3?


NaN3 → Na + N2

Answer:

answer d

Explanation:

methy group is in the second position while the double bond is in the third position

The calculated maximum wavelength is 495 nm

The energy needed to break a bond and create two atomic or molecular fragments, each containing one of the original shared pair of electrons, is known as the bond dissociation energy. The link between silicon and fluorine, which was previously discussed, is discovered to be the strongest chemical bond. The initial silicon-fluorine bond in a silicon tetrafluoride molecule requires 166 kcal/mol of bond dissociation energy to be broken.

ΔH=+240 kJ/mol

E=242×103/6.022×1023

=4.0186×10−19 J

Now I use the Planck Expression:

E=hf=hc/λ

∴λ=hc

Eλ=6.63×10−34×3×108/4.0186×10-19 m

λ=4.949×10−7 m

λ=495 nm.

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Explanation:

Atomic;

Numb...

SymbolN

ame

Atomic Mass...1HHydrogen1.007972HeHelium4.002603LiLithium6.941

The AGº for the phosphorylation of ADP by phosphoenolpyruvate is equal to 32 kJ/mol.

The AGº for the phosphorylation of ADP by phosphoenolpyruvate can be calculated using the equation:

AGº = AGº (ATP hydrolysis) - AGº (phosphoenolpyruvate hydrolysis)

Given that AGº (ATP hydrolysis) = -30 kJ/mol and AGº (phosphoenolpyruvate hydrolysis) = -62 kJ/mol, then:

AGº = -30 kJ/mol - (-62 kJ/mol) = 32 kJ/mol

NADH: An increase in the concentration of NADH can inhibit PDH, as it competes with pyruvate for binding to the active site of the enzyme.

Acetyl-CoA: An increase in the concentration of acetyl-CoA can also inhibit PDH, as it acts as an allosteric inhibitor

Therefore, the AGº for the phosphorylation of ADP by phosphoenolpyruvate is equal to 32 kJ/mol.

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Answer:

To ensure the most accurate mass reading when using a properly stabilized balance, you should:

The correct answer is "Convexity has high value when investors expect that market yields will not change much." This statement is incorrect about the convexity term of a bond.

Convexity is the curvature of the price-yield relationship of a bond and a measure of how bond prices react to interest rate shifts.

Convexity is a term used in bond markets to describe the shape of a bond's yield curve as it changes in response to a shift in interest rates.

Bond traders use the convexity term to estimate the effect of interest rate changes on bond prices more precisely.

Bond traders use the term convexity to measure the rate of change of duration, which is a measure of a bond's interest rate sensitivity.

Convexity term and its features Convexity is always positive for a plain-vanilla bond.

We can improve the estimation of a price change with regard to a change in interest rates by accounting for the convexity of the bond.

Convexity is higher when market yields are unstable or when the bond has more extended maturity and lower coupon rates.

Thus, the correct statement about the convexity term of a bond is:

Convexity is higher when market yields are unstable or when the bond has more extended maturity and lower coupon rates.

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Many vegetable oils contain large amounts of : omega - 6 polyunsaturated fatty acids.

The Omega - 6 fatty acids are the type of the polyunsaturated fat that is found in the vegetable oils, nuts and the seeds. When it is eaten in the moderation and in the place of the saturated fats, the omega-6 fatty acids will be good for the heart and it appear to be protect against the heart disease. The omega 6 are the family of the polyunsaturated fatty acids that contain the common  final carbon-carbon double bond .

Thus, the omega 6 fatty acids are present in many vegetable oils  that is in the large amount.

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We need to balance because according to law of conservation of mass

So

We cannot change the subscripts as we can't change the chemical formula.

the balanced equation for this is

2Fe + 3H2SO4 → Fe2(SO4) + 3H2

It's necessary to balance chemical equations because the product has to be the same mass as the elements before the chemical reaction. To balance the equation, coefficients can be added to even the amount of atoms on each side, but changing subscripts results in changing the substance entirely, so you can't

The amount of the heat in kJ , would be involved in the condensing 12.9v g of the CH₃OH  is the 15.2 kJ.

Given that :

The mass of the CH₃OH = 12.9 g

The ΔH = 38 kJ/mol

The molar mass = 32 g/mol

The number of the moles = mass / molar mass

The number of the mole = 12.9 / 32

                                         = 0.403 mol

The number of the moles is 0.403 mol

The amount of the heat is given as  :

Q = n ΔH

Q = 0.403 × 38

Q = 15.2 kJ.

Thus, the amount of the heat is 15.2 kJ.

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The mass percentage (m/m%) of copper in the ornament is 70.83%.

Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture.

Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%.

According to this question, Brass is an alloy of copper and zinc. If a 1.20 kg ornament made of brass contained 850 g of copper, the mass percentage of copper in the brass is calculated as follows:

Mass percentage = (850g ÷ 1200g) × 100

Mass percentage = 70.83%

Therefore, 70.83% is the mass percentage of copper in the brass.

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The unknown metal has a specific heat of 0.128 J/(g°C).

To find the specific heat of an unknown metal you can use the formula:

Q = m*c*ΔT

where Q is the amount of thermal energy supplied, m is the mass of the metal, c is the specific heat of the metal, and ΔT is the temperature change. We know that the mass of the metal is 50 g and the temperature change is ΔT = (955 °C - 25 °C) = 930 °C.

Substituting these values ​​into the formula gives:

6000J = 50g*c*930°C

Solving for c gives:

c = 6000J / (50g * 930°C) = 0.128J/(g°C)

This value is relatively low compared to other metals such as copper, which has a specific heat of 0.385 J/(g°C). This suggests that the unknown metal has low thermal conductivity and may require less energy for heating compared to copper. Determining the specific heat of metals is important in a variety of industrial and scientific applications, such as developing thermal management systems and determining the heat transfer capabilities of materials.

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The compound that cannot exhibit hydrogen bonding among the given options is methane (CH4).

Hydrogen bonding is a special type of intermolecular force that occurs when a hydrogen atom is bonded to a highly electronegative atom (such as nitrogen, oxygen, or fluorine) and is attracted to another electronegative atom in a different molecule. This interaction results in stronger intermolecular forces and higher boiling points for compounds that can exhibit hydrogen bonding.

In the given options, hydrogen bonding can occur in HF, H2O, and NH3. HF has a hydrogen atom bonded to a highly electronegative fluorine atom, and it can form hydrogen bonds with other HF molecules. H2O and NH3 have hydrogen atoms bonded to electronegative oxygen and nitrogen atoms, respectively, and can also form hydrogen bonds with other molecules of the same compound.

However, methane (CH4) cannot exhibit hydrogen bonding. It consists of carbon bonded to four hydrogen atoms, but it lacks the presence of a highly electronegative atom bonded to the hydrogen atom. Therefore, it cannot form hydrogen bonds with other methane molecules.

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Answer:

All Answers only for the elite; Nomenclature of Covalent Compounds Quiz

You're Welcome :)

Explanation:

A-hydrochloric acid

B-sulfuric acid

C-dinitrogen pentoxide

C- IBr3

A- carbon dioxide

B- Start the name with hydro-.

B- H3BO3

C-sulfur trioxide

A- NH3

B- The chemical name ends with “hydroxide.”

From the options provided for the element, a gas is a property that neon may have based on its location in the periodic table.

Neon is an inert gas. The elements of group 8 A are the inert gases. They are - Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe) and Radon (Rn). Inert gases are stable and they are not reactive chemically.. Inert gases are also called as noble gases.

Neon element is a gas which cannot be shiny or dull. It is clear and colorless. So, it cannot have this property.

Neon element is an inert gas. They have complete valence shells and do not have any free electrons. Therefore, they are poor conductors of electricity.

Neon element belongs to the group 8, which is inert gas. Therefore, it has property of gas.

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Answer:

8

Explanation:

Answer: (F) chemical energy

Explanation:

Answer:

6.25 moles of N₂ is produced, and 18.8 moles of Cu and H₂O is produced.

Explanation:

We are given the chemical equation:

\(\displaystyle 2\text{NH$_3$}_\text{(g)} + 3\text{CuO}_\text{(s)} \longrightarrow \text{N$_2$}_\text{(g)} + 3\text{Cu}_\text{(s)}+3\text{H$_2$O}_\text{(g)}\)

And we want to determine the amount of products produced when 12.5 moles of NH₃ is reacted with excess CuO.

Compute using stoichiometry. From the equation, we can see the following stoichiometric ratios:

Dimensional Analysis:

\(\displaystyle 12.5\text{ mol NH$_3$} \cdot \frac{1\text{ mol N$_2$}}{2\text{ mol NH$_3$}} = 6.25\text{ mol N$_2$}\)

\(\displaystyle 12.5\text{ mol NH$_3$} \cdot \frac{3\text{ mol Cu}}{2\text{ mol NH$_3$}} = 18.8\text{ mol Cu}\)

\(\displaystyle 12.5\text{ mol NH$_3$} \cdot \frac{3\text{ mol H$_2$O}}{2\text{ mol NH$_3$}} = 18.8\text{ mol H$_2$O}\)

In conclusion, 6.25 moles of N₂ is produced, and 18.8 moles of Cu and H₂O is produced.

...,...................................

Answer: Weight is the measure of the force of gravity

Explanation:

Weight is a measure of the force of gravity on a physical object and is measured in newtons. The weight of a bird of mass 15 g varies with the magnitude of the gravitational force acting on it and would be considerably different if measured on the Moon, for example, instead of on Earth.

Atomic weight of metal : 24

Proust states the Comparative Law that compounds are formed from elements with the same Mass Comparison so that compounds have a fixed composition of elements

Divalent metal oxide=XO

MW O = 16

MW XO₂ =  X+16

\(\tt \%mass=\dfrac{Ar~X}{X+16}\times 100\%\\\\0.6=\dfrac{X}{X+16}\\\\0.6(X+16)=X\\\\0.6X+9.6=X\\\\0.4X=9.6\rightarrow X=24\)

The final pH of the solution is made by mixing 15 mL of 1.0 M \(A^-\) (conjugate base) with 7.5 mL of 1.0 M HA (weak acid) is approximately 7.12

To find the final pH of the solution made by mixing 15 mL of 1.0 M \(A^-\) (conjugate base) with 7.5 mL of 1.0 M HA (weak acid) with a pKa of 6.82, follow these steps:

1. Calculate the moles of \(A^-\) and HA:
- Moles of A- = volume x concentration = 15 mL x 1.0 M = 15 mmol
- Moles of HA = volume x concentration = 7.5 mL x 1.0 M = 7.5 mmol

2. Determine the total volume of the solution:
Total volume = 15 mL + 7.5 mL = 22.5 mL

3. Calculate the concentrations of A- and HA in the final solution:
- [A-] = moles of A- / total volume = 15 mmol / 22.5 mL = 0.667 M
- [HA] = moles of HA / total volume = 7.5 mmol / 22.5 mL = 0.333 M

4. Use the Henderson-Hasselbalch equation to calculate the pH:
pH = pKa + log ([\(A^-\)] / [HA])
pH = 6.82 + log (0.667 / 0.333)
pH = 6.82 + log (2)
pH ≈ 6.82 + 0.301
pH ≈ 7.12

The final pH of the solution is approximately 7.12

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Answer:

High Polarity

Lower Density Of Ice The reason icebergs are floating on the sea surface is because of this lower density. ...

High Heat Of Evaporation When water starts evaporating off of a surface, it creates an effect of cooling. ...

High Specific Heat Water manages to stay liquid because of two of its properties, high specific heat, and its high heat of vaporization. ...

Attraction To Other Polar Molecules The property of cohesion allows liquid water to have no tension on the surface.

Explanation:

When KCl is dissolved in water, the following ions are produced: K+ and Cl-.

The solution of an ionic compound dissolved in water will be broken into ions, with the positive ions separated from the negative ions. The cation, which is positively charged, is usually a metal, while the anion, which is negatively charged, is usually a non-metallic element or a group of atoms. When a solute dissolves in water, it forms an electrolyte, which is a substance that conducts electricity when dissolved in water.

KCl, or potassium chloride, is an ionic compound. It is a white crystalline powder with a salt-like taste that dissolves in water. It is used in food processing as a sodium replacement, in medicine as a potassium supplement, and in industrial chemical synthesis and manufacturing.

The chemical formula of KCl is K+Cl-. Potassium chloride (KCl) consists of K+ ions and Cl- ions. In water, these ions disassociate (separate) to produce K+ ions and Cl- ions. So, when KCl is dissolved in water, the ions K+ and Cl- are formed. The answer is K+ and Cl-.

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Answer:

Common (industrial) uses for cadmium today are in batteries, alloys, coatings (electroplating), solar cells, plastic stabilizers, and pigments

Answer:

Ecosystem Energy Flow Nearly all of the energy that drives ecosystems ultimately comes from the sun. Solar energy, which is an abiotic factor, by the way, enters the ecosystem through the process of photosynthesis. You can learn more than you want to know about this process in the unit on photosynthesis.

Explanation:

Answer:

I think that temperature will be cut in half.

When volume increases, pressure decreases. As pressure decreases, temperature decreases. So if you double volume, pressure is halved and so will the temperature. I'm new to this, but I think that's the answer . Tell me if I'm right good luck!

Answer:

cellular respiration. C6H12O6 + 6O2 → 6CO2 + 6H2O.

Explanation:

the process where cells convert chemical energy and/or nutrients into ATP and then the cells release the waste.

1..orbit

2..7

I hope this was helpful

Answer:

its B

Explanation:

this is pretty obvious since I know about this and did it already.

I Hope this helps!

GOODLUCK!!!!!!!