Which of the following is TRUE about when two atoms form a bond? a. Repulsion is greater than attraction b. Neither atoms will have a full valence shell c. Potential energy is at a minimum

The molecule that would provide the most accurate value for the bond length of a nitrogen-nitrogen double bond is N2.

N2 is a diatomic molecule composed of two nitrogen atoms bonded together by a triple bond. The triple bond consists of one sigma bond and two pi bonds. The bond length of a nitrogen-nitrogen triple bond in N2 is well-established and widely accepted in the scientific literature.

On the other hand, NH3 (ammonia) is not relevant to determining the bond length of a nitrogen-nitrogen double bond. NH3 contains three hydrogen atoms bonded to a central nitrogen atom, forming a trigonal pyramidal molecular geometry. It does not possess a nitrogen-nitrogen double bond.

NzHa, NzHz, and NzO are not valid chemical formulas and do not correspond to any known molecules.

Therefore, N2 is the molecule that provides the most accurate value for the bond length of a nitrogen-nitrogen double bond, as it represents the nitrogen-nitrogen triple bond, which is well-studied and established.

To know more about molecule visit:

https://brainly.com/question/475709

#SPJ11

The species that act as acid are the ones that donates H⁺ in the reaction.

Since we are working with an equilibrium, we have to consider both directions.

From left to right, we have H₂O turning into OH⁻ because it lost one H⁺, so H₂O is acting as an acid in the forward reaction.

From right to left, we have CH₃NH₃⁺ tunrning into CH₃NH₂ because it lost one H⁺, so CH₃NH₃⁺ is acting as an acid in the backwards reaction.

So, the species that act as acids are H₂O and CH₃NH₃⁺, I and II only.

Answer:

the right answer is 9110

Answer:

c

Explanation:

please add me as brainliest

Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol. All ions of lithium contain three electrons.  

Lithium is a type of medicine known as a mood stabiliser. It's used to treat mood disorders such as: mania (feeling highly excited, overactive or distracted) hypo-mania (similar to mania, but less severe)

At a neuronal level, lithium reduces excitatory (dopamine and glutamate) but increases inhibitory (GABA) neurotransmission; however, these broad effects are underpinned by complex neurotransmitter systems that strive to achieve homeostasis by way of compensatory changes.

To know more about lithium visit

https://brainly.com/question/1439744

#SPJ1

Answer:

14.7°C

Explanation:

Q = m·ΔT·c

ΔT = \(\frac{Q}{m*c}\)

ΔT =\(\frac{1320 J}{230 g* 0.39 J/gC}\)

     = 1320 J / ((230 g) * (.39 J/g°C)

ΔT = 14.7 °C      

Answer:

Explanation:

Momentum is a vector quantity because it has both magnitude and direction

First nations people along the west coast of British Columbia used smelting technology to create copper plaques is false.

Smelting process is the form of extractive metallurgy to produce a metal from its ore. it is the process of melting and separation of charges .  it is extensive energy process. Plaques are made by pouring molten metal in to a mold. and when it gets cools , it solidified into a copper solid plaque. first nation people use copper as hunting weapons, spear tools etc. copper is metal.

Thus, First nations people along the west coast of British Columbia used smelting technology to create copper plaques is false.

To learn more about copper here

https://brainly.com/question/13677872

#SPJ1

Liquid/liquid and acid/base reactions are commonly used in organic reactions to catalyze or facilitate the reaction. Organic reactions are chemical reactions involving organic compounds, which are molecules that contain carbon and hydrogen atoms.

Many organic reactions require a catalyst or a facilitator to occur, and liquid/liquid and acid/base reactions are often used for this purpose.

In liquid/liquid reactions, two liquid phases are used, and the reactants and catalysts are distributed between them. This can provide a favorable environment for the reaction to occur, such as by increasing the solubility of the reactants or by separating reaction intermediates from the main reaction.

In acid/base reactions, an acid or a base is used as a catalyst or a facilitator. Acids can donate a proton (H+) to the reactants, while bases can accept a proton. This can change the electronic properties of the reactants and make them more reactive, or it can stabilize the reaction intermediates.

Learn more about organic reaction: https://brainly.com/question/30905538

#SPJ11

True. 1-octanol is a combustible liquid with a flashpoint of 86°C and an auto-ignition temperature of 258°C, according to the provided SDS.

The SDS (Safety Data Sheet) for 1-octanol indicates that it is a combustible liquid. According to the SDS, 1-octanol has a flashpoint of 86°C (187°F) and an auto-ignition temperature of 258°C (496°F). These values suggest that 1-octanol can easily ignite in the presence of an ignition source and may burn at relatively low temperatures. Additionally, the SDS provides information on the fire and explosion hazards associated with 1-octanol and recommends appropriate handling procedures and precautions to minimize the risk of fire or explosion. Therefore, it is important to handle 1-octanol with care and follow appropriate safety protocols when working with this substance.

To learn more about combustible liquid, refer:

https://brainly.com/question/28222891

#SPJ4

The complete question is:

the SDS for 1-octanol is provided here. (links to an external site.) is 1-octanol a combustible liquid? True or False.

The purpose of the concentrated sulfuric acid used in the first step depends on the specific process you are referring to. However, in general,

concentrated sulfuric acid is often used as a strong acidic catalyst or dehydrating agent. Its high reactivity and ability to protonate organic molecules make it useful for promoting reactions such as esterification or dehydration. In some cases. it may also be used to remove water from a reaction mixture by forming an azeotrope with water that can be easily separated.

In summar the purpose of concentrated sulfuric acid in the first step is likely to either catalyze a reaction or remove water from the system.The purpose of the concentrated sulfuric acid used in the first step is to serve as a dehydrating agent. It helps remove water from the reaction mixture, which allows the desired reaction to proceed more efficiently. In this case, the concentrated sulfuric acid assists in driving the reaction forward and ensuring a successful outcome.

To know more about sulfuric acid visit:

https://brainly.com/question/1107054

#SPJ11

The reaction enthalpy change, ΔH°rxn, is provided along with the standard Gibbs free energy change of formation, ΔG°f, for each compound involved in the reaction. By applying Hess's law and the relationship ΔG°rxn = ΔH°rxn - TΔS°rxn, where T represents temperature and ΔS°rxn is the standard entropy change, we can calculate ΔG°rxn.

1. Hess's law states that the overall enthalpy change for a reaction is independent of the pathway taken. We can use this principle to calculate ΔH°rxn by considering the enthalpy changes associated with the formation of the reactants and products.

2. Using the given data, we find the following enthalpy changes: ΔH°f(A) = x, ΔH°f(B) = y, ΔH°f(C) = z. The formation of two moles of compound C requires twice the energy, so we have ΔH°rxn = 2ΔH°f(C) - 2ΔH°f(A) - ΔH°f(B).

3. Next, we need to calculate the standard entropy change, ΔS°rxn. Unfortunately, the data provided does not include entropy values, so we cannot determine this directly. However, if we have additional information or assumptions about the reaction, we could estimate ΔS°rxn or use experimental data to obtain an approximation.

4. Finally, using the relationship ΔG°rxn = ΔH°rxn - TΔS°rxn, we can calculate ΔG°rxn. Remember to convert the temperature to Kelvin (K) before performing the calculation.

5. It's important to note that without specific entropy data or additional information, it may not be possible to calculate the exact value of ΔG°rxn for the given reaction.

Learn more about Hess's law here: brainly.com/question/10504932

#SPJ11

Answer:

1.16 mL  

Explanation:

Assume the data show that 25 pennies have a total volume of 29.00 mL.

\(\text{Average volume} = \dfrac{\text{29.00 mL}}{25} = \textbf{1.16 mL}\)

Answer:

T2 = 547.2K

Explanation:

Given:

V1 = 135 ml. V2 = 250 ml

T1 = 295.5K. T2 = ?

Using Charles's law and solving for T2,

V1/T1 = V2/T2

T2 = (V2/V1)T1

= (250 ml/135 ml)(295.5K)

= 547.2K (or 273.2°C)

The temperature of the nitrogen gas is  33.92 Kelvin

How to solve:

To get the temperature of the nitrogen gas, we will use the ideal gas equation:

PV = nRT

where:

P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. First, let's change the equation to account for temperature:

T = PV/(nR)

Presently, we can connect the given qualities:

The ideal gas constant, R, is 0.0821 L-atm/(mol-K), with P = 0.975 atm and V = 1.68 L and n = 0.589 mol.

Adding the following values to the equation:

T = (0.975 atm * 1.68 L) / (0.589 mol * 0.0821 L atm/(mol K)) T = 1.6332 atm L / (0.04813 L atm/(Kmol))

The nitrogen gas's temperature is 33.92 Kelvin because;

T = 1.6332 / 0.04813 K

T = 33.92 K.

Read more about Nitrogen gas here:

https://brainly.com/question/15022152

#SPJ1

The false statement is A: "Hazardous air pollutants affect more areas of the country than do the criteria air pollutants." Criteria air pollutants are more widespread and affect larger areas, while hazardous air pollutants tend to be more localized.

To determine which statement about hazardous air pollutants (air toxics) is false, we'll examine each statement for validity.

A. Hazardous air pollutants affect more areas of the country than do the criteria air pollutants - FALSE. Criteria air pollutants are more widespread, while hazardous air pollutants are more localized.
B. Hazardous air pollutants are regulated under the NESHAPS provisions - TRUE. The National Emission Standards for Hazardous Air Pollutants (NESHAPS) regulate these pollutants.
C. Over 180 hazardous air pollutants are regulated by the EPA - TRUE. The EPA lists and regulates 187 hazardous air pollutants under the Clean Air Act.
D. Hazardous air pollutants present a more serious threat to human health than do the criteria pollutants - TRUE. Hazardous air pollutants can have more severe health impacts, including cancer and birth defects.
E. Hazardous air pollutants are generally associated with specific industries - TRUE. Some industries, such as chemical manufacturing and metal processing, are more likely to emit hazardous air pollutants.

To learn more about Hazardous air pollutants, visit:

https://brainly.com/question/31137651

#SPJ11

Answer:

Wick as compared to wax has higher stiffness, fire-resistance, and tethering

Explanation:

Wick as compared to wax has higher stiffness, fire-resistance, and tethering

Without a wick, wax will melt easily and the candle made of wax will not last longer.

But a candle of wax mixed with wick will have last longer as wick allows wax to stay as liquid on the top of burning candle till it vaporizes thereby increasing the life of wax

The molar concentration of the sodium hydroxide solution is 0.37 mol/L.

To determine the molar concentration of the sodium hydroxide solution, the following equation can be used:

Molarity = (Mass of Solute/Molecular Weight of Solute) / (Volume of Solution in L)

In this case, the solute is sodium hydroxide (NaOH) and the molecular weight of NaOH is 40.00 g/mol.

The mass of the solute must be calculated. Since 0.261 g of NaHC₂O₄ (one acidic proton) requires 17.5 ml of sodium hydroxide solution for a complete reaction, the mass of NaOH required must also be equal to 0.261 g since the equivalence of both is 1. Then the volume of the solution (in liters) is determined. Since 1 ml = 0.001 L, 17.5 ml = 0.0175 L.

Plugging the values into the equation gives:

Molarity = (0.261g/40.00 g/mol) / (0.0175 L) = 0.37 mol/L

Therefore, the molar concentration of the sodium hydroxide solution is found to be 0.37 mol/L  when 0.261 g of NaHC₂O₄ required 17.5 ml of sodium hydroxide solution for a complete reaction.

To know more about molar concentration, refer here:

https://brainly.com/question/15532279#

#SPJ11

Answer:

speed is a scalar quantity and velocity is a vector quantity.

Speed is distance/time and velocity is displacement/time

Answer:

Velocity is vector and speed is scalar

Explanation:

The original volume of the solution was 0.6 liters.

To determine the original volume of the solution, we need to use the relationship between molarity, moles, and volume. The equation for molarity is:

Molarity (M) = moles (mol) / volume (L)

Given:

Molarity (M) = 5 M

Moles (mol) = 3 moles

Let's assume the original volume of the solution is V (L).

Using the formula for molarity, we can rearrange it to solve for volume:

Volume (L) = moles (mol) / molarity (M)

Plugging in the given values, we have:

V = 3 mol / 5 M

Calculating this expression, we find:

V = 0.6 L

To explain the calculation, we use the definition of molarity, which is the number of moles of solute divided by the volume of the solution in liters. By rearranging the equation and solving for volume, we can determine the original volume of the solution.In this case, we have 3 moles of solute and a molarity of 5 M. Dividing the moles by the molarity gives us the volume of the solution in liters. Hence, the original volume is 0.6 liters.It's important to note that molarity represents the concentration of a solution, which is the amount of solute dissolved in a given volume of solvent. In this context, the solution is made by dissolving 3 moles of solute in a volume that turns out to be 0.6 liters.

For more such questions on volume

https://brainly.com/question/29796637

#SPJ11

Answer:

red and blue

Explanation:

The answer is Solution!

Explanation:

Solution is a homogeneous mixture

of two or more substance. In a

sugar solution, sugar gets uniformly

mixed with water

The final volume of the solution should be approximately 3.99 L if you want a solution made from 75.00 g of Mg(OH)2 to have a concentration of 0.435 M.

To determine the final volume of the solution, we can use the formula:

\(\[ \text{Concentration (M)} = \frac{\text{moles of solute}}{\text{volume of solution (L)}} \]\)

First, we need to calculate the moles of Mg(OH)2 using the given mass and formula weight:

\(\[ \text{moles of Mg(OH)2} = \frac{\text{mass}}{\text{formula weight}} \]\)

Substituting the values:

\(\[ \text{moles of Mg(OH)2} = \frac{75.00 \, \text{g}}{58.33 \, \text{g/mol}} \]\)

Next, we can rearrange the formula to solve for the volume of the solution:

\(\[ \text{volume of solution (L)} = \frac{\text{moles of solute}}{\text{concentration (M)}} \]\)

Substituting the values:

\(\[ \text{volume of solution (L)} = \frac{\text{moles of Mg(OH)2}}{0.435 \, \text{M}} \]\)

Now we can calculate the volume:

\(\[ \text{volume of solution (L)} = \frac{75.00 \, \text{g} / 58.33 \, \text{g/mol}}{0.435 \, \text{M}} \]\)

\(\[ \text{volume of solution (L)} \approx 3.99 \, \text{L} \]\)

Therefore, the final volume of the solution should be approximately 3.99 L if you want a solution made from 75.00 g of Mg(OH)2 to have a concentration of 0.435 M.

Know more about volume:

https://brainly.com/question/14710169

#SPJ4

Answer:

Density, \(d=19.3\ g/cm^3\)

Explanation:

Given that,

Mass of gold is 38.6 g

Volume, V = 2 cm³

We need to find the density of gold cube. The density of an object is defined as how much mass it has divided by its volume. So,

\(d=\dfrac{38.6\ g}{2\ cm^3}\\\\d=19.3\ g/cm^3\)

So, the density of the cube of gold is \(19.3\ g/cm^3\).

Answer:

The properties of the Hardness are:

Hardness is a physical property

Hardness is indicative of the strength of chemical bonds between elements.

Diamond can scratch quartz Explanation:

Answer:

True!

Explanation:

A spectrum is simply a chart or a graph that shows the intensity of light being emitted over a range of energies. Have you ever seen a spectrum before? Probably. Nature makes beautiful ones we call rainbows. Sunlight sent through raindrops is spread out to display its various colors (the different colors are just the way our eyes perceive radiation with slightly different energies).

Hope i helped!

The conjugate base of a compound is what this compound will be after donating a H⁺.

The comopund in question is H₂BO₃⁻. After it loses 1 H⁺, it will have one less H atom and its charge decrease by one. Its charge is only with a "-" sign, which means its chargeis 1-. After decreasing by one, the charge becomes 2-.

So, the conjugate base will be HBO₃²⁻

Answer:

Hope this helps you

The method for determining the pH of a weak base solution is the same as that of the weak acid in the sample problem. However, the hydroxide ion concentration will be represented by the variable.

List the known values in Step 1 and make a plan for the issue.

Solve the problem in step two. HNO2H+NO−2Initial2.0000Change−x+x+xEquilibrium2.00−xxx.

Step 3: Consider your outcome. A strong acid solution at 2.00M would have a pH of log(2.00)=0.30.

The negative logarithm is used to calculate the pOH, which is then used to subtract from 14 to calculate the pH. Because weak acids do not dissociate, the value of (C - x) will be nearly equal to C. pH = - (-3.09) = 3.09 as a result. This is a rather straightforward way for figuring out the pH of the weak acid. The difference between the two answers is only about 0.02, which is negligible.

To know more about weak base, click here:

https://brainly.com/question/22104949

#SPJ4