What kind of molecule can experience hydrogen bonding?
A. A nonpolar molecule containing a hydrogen atom
B. A molecule with hydrogen bonded to any nonmetal
C. A molecule with hydrogen bonded to O, N, or F
D. Any polar molecule containing a hydrogen atom

Answer:

C- transforemed or changed

Explanation:

matter can be changed by application of heat or cold

The given compound, [nt(en)Cl2]Br2, consists of a central niobium (nt) cation coordinated with two chlorides (Cl-) ions and two bidentate ethylenediamine (en) ligands, along with two bromides (Br-) ions as counter ions.

A compound is a substance that is made up of two or more different elements that are chemically bonded together. The atoms of each element combine to form a molecule with a unique chemical formula and structure. Compounds can be formed through a variety of chemical reactions, such as the combination of elements, oxidation-reduction reactions, and acid-base reactions. They can be either molecular compounds, where the elements are joined by covalent bonds, or ionic compounds, where the elements are joined by ionic bonds.

Compounds have unique physical and chemical properties that differ from the properties of their constituent elements. For example, water is a compound made up of hydrogen and oxygen, but it has properties that are different from those of hydrogen and oxygen individually. Compounds play an important role in many aspects of our daily lives, from the food we eat to the medicines we take to the materials we use to build structures.

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Based on the given information, the true statement about the time indicated by the blue arrow is: (c) The rate of the forward reaction (N₂O₄ formation) is equal to the rate of the reverse reaction (NO₂ formation).

The graph shows the relative amounts of NO₂ and N₂O₄ over time, and the point indicated by the blue arrow represents a state of equilibrium. In an equilibrium state, the forward and reverse reactions occur at equal rates.

The concentrations of NO₂ and N₂O₄ reach a constant value, indicating that the conversion of NO₂ to N₂O₄ and the conversion of N₂O₄ to NO₂ are occurring at the same rate.

Option a suggests that NO₂ molecules are no longer reacting, which is incorrect as the reaction is still ongoing at equilibrium. Option b suggests that the reactant has been completely used up, which is not the case in an equilibrium state. Option d refers to the activation energy, which is unrelated to the equilibrium state. Therefore, option c is the correct choice.

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Alkenes are a group of unsaturated hydrocarbons (i.e., molecules with solely carbon and hydrogen) that include at least one double bond from carbon to carbon. Olefins is a different name for alkenes. Due to the double bond, alkenes are more reactive than alkanes.

What is Hydrocarbon?

A hydrocarbon is an organic compound made entirely of the two atom kinds of carbon and hydrogen. Hydrocarbons are typically colourless gases with barely perceptible odours. The four subcategories that are generally used to classify hydrocarbons are alkanes, alkenes, alkynes, and aromatic hydrocarbons. These chemicals' structures could be quite simple or extremely intricate. The study of hydrocarbons can provide insight into the chemistry and behavior of other functional groups. For commercial purposes, liquefied petroleum gas, which is produced from hydrocarbons like propane and butane, is also used as a fuel source (LPG). Benzene, one of the most fundamental aromatic hydrocarbons, serves as the building block for many synthetic drugs.

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Complete question

Name The Alkenes Below. Name The Alkenes Below. A) Ball& Sticklabels B) Ball & Stick ▼

Humidified oxygen systems are used oxygen therapy for respiratory disorders. At the interval of one day, humidified oxygen systems replaced to prevent infection.

Because the oxygen used in hospitals is a dry, irritating gas that can damage the respiratory mucosa if improperly humidified, oxygen humidifiers are frequently employed in medical facilities.

Five cases of fatal pneumonia caused by Legionella pneumophila were reported in the past as a result of nebulizer therapy that was administered using contaminated humidifiers.

Bacteria may come from a patient using the device's oral cavity and distal airways, as well as from contaminated water. The ability of some potentially harmful microbes, including P. aeruginosa, to grow in distilled water was demonstrated in great detail with regard to the last point.

Therefore, it is necessary  to replace the humidified oxygen systems for each day to prevent infection.

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Answer:

Question 4 is 291.0346

Explanation:

Answer:

I don't understand what the question is

Explanation:

hope you understand

Answer:

1)Alkaline nature 2)Reaction with water 3)Reaction with oxygen and air 4)Corrosion 5)Reducing properties

If either one of them are in the choices, that's the chemical property

Explanation:

Answer:

C. Aluminum is highly reactive.

Explanation:

just did it on Edge.

Answer:

A. can be separated by physical means.

Explanation:

A mixture is when two different materials are put in the same container and no reaction occurs.

Answer:

\(P_2=7.09atm\)

Explanation:

Hello!

In this case, given the change in volume and pressure of the gas, it is possible for us to recall the Boyle's law as way to understand the inversely proportional relationship between pressure and volume:

\(P_1V_1=P_2V_2\)

Thus, when solving for the final pressure, P2, given the initial pressure and volume and the final volume, we obtain:

\(P_2=\frac{P_1V_1}{V_2}\\\\P_2=\frac{2.27atm*2.50L}{0.80L}\\\\P_2=7.09atm\)

Best regards!

Answer:

7.1 atm

Using Boyle’s law, P1 V1=P2 V2.

Answer: Zelda should place one container of water in sunlight (by a window or outdoors) and the other container in a dark room (closet) away from the sun.

Explanation: This would allow Zelda to test two different settings (sun and no sun) so she can test her hypothesis.

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

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Water molecules have a stronger attraction than helium due to the presence of dipole-dipole interactions resulting from the polarity of the water molecule.

Water molecules have a stronger attraction than helium due to the difference in their intermolecular forces. Intermolecular forces are the attractive forces that exist between molecules and play a crucial role in determining the physical properties of substances.

Water molecules have a polar nature, meaning they have a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom.

This polarity arises from the unequal sharing of electrons in the O-H bonds due to oxygen's higher electronegativity compared to hydrogen. The presence of polar bonds within the water molecule gives rise to a dipole-dipole interaction.

In contrast, helium is a noble gas and exists as individual atoms. Helium atoms are electrically neutral and do not possess a permanent dipole moment.

As a result, helium exhibits weak intermolecular forces known as London dispersion forces or Van der Waals forces. These forces arise due to temporary fluctuations in electron distribution, causing temporary dipoles that induce dipoles in neighboring atoms or molecules.

The dipole-dipole interaction in water is stronger than the London dispersion forces in helium. This is because dipole-dipole forces are more significant when there are permanent dipoles in the molecules.

The stronger attraction between water molecules leads to higher boiling and melting points compared to helium.

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Explanation:

Mole ratio of H2SO4 to NaOH = 1 : 2.

Moles of NaOH

= Moles of H2SO4 * (2/1)

= 23.1mol * (2/1)

= 46.2mol. (A)

A molecule with a T-shaped molecular geometry has a bond angle of option A, which is <120° for equatorial bonds and <90° for axial bonds. The correct answer is D.

A molecule with a T-shaped molecular geometry has a bond angle of 120° for equatorial bonds and 90° for axial bonds. In a T-shaped molecular geometry, the central atom is bonded to three other atoms and has two lone pairs. The repulsion between the lone pairs causes the bond angles to be less than the typical angles found in trigonal bipyramidal geometry. In conclusion, the bond angles in a molecule can vary based on its molecular geometry and it is important to understand these angles to accurately predict the molecule's properties and behavior.

Therefore, the correct answer for the bond angle in a T-shaped molecular geometry is A (<120° for equatorial bonds and <90° for axial bonds).

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Answer:

the Germany scientist Alfred Wagner describes fold mountains that are found in The world are the same also geological similarity that occur between this continent are the same for example the rock that are found in brazil are the same of that of south africa.

Answer:

your answer should be B ANDC

Answer:

B and c is your answer

Explanation:

Option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

The long-run equilibrium condition for perfect competition is that price (P) is equal to average total cost (ATC), which is also equal to marginal cost (MC), and marginal revenue (MR).

Option (d), P=ATC=MR=MC, best represents the long-run equilibrium condition for perfect competition. In perfect competition, firms operate at the minimum point of their average total cost curve, where price equals both average total cost and marginal cost. This condition ensures that firms are earning zero economic profit and are producing at an efficient level.

In the long run, if firms are earning economic profit, new firms will enter the market, increasing competition and driving prices down. Conversely, if firms are experiencing losses, some firms may exit the market, reducing competition and causing prices to rise. This process continues until firms reach a state where price equals average total cost, marginal cost, and marginal revenue, ensuring a long-run equilibrium.

Therefore, option (d), P=ATC=MR=MC, accurately represents the long-run equilibrium condition for perfect competition, reflecting the balance between price and cost for firms operating in a competitive market.

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Answer: What i got was neutrons and it said it was right.

Explanation:

i looked back in my notes after i couldn't find the answer plus neutrons and electrons are two different answers on my question, hope y'all get it right. ;)

Answer:

True

Explanation:

You need to be aware of the molar mass of the unknown material as well as the mole ratio of the unknown substance to the supplied substance in order to do a stoichiometric calculation.

A chemical reaction's mole ratio compares how many moles of one substance are present to how many moles of a different substance are also present in the same reaction. The balanced chemical equation for the reaction yields this ratio.

The molar mass of the material is the mass, measured in grammes per mole, of one mole of the unknown substance.

Using the mole ratio and molar mass of the unknown substance, you may calculate the mass of the unknown chemical that will react with a certain amount.

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The phenomenon observed, where water at the top of the mountain started boiling before the water at lower stations, can be attributed to the difference in atmospheric pressure at various elevations.

Atmospheric pressure decreases with increasing altitude. The pressure exerted by the atmosphere affects the boiling point of a liquid. As the pressure decreases, the boiling point of a substance also decreases.

This is because boiling occurs when the vapor pressure of the liquid equals the atmospheric pressure. When the atmospheric pressure decreases, the vapor pressure required for boiling is reached at a lower temperature.

On top of the mountain, where the atmospheric pressure is lower, the boiling point of water is lower compared to the stations at lower elevations.

Therefore, even if the water at each station was at the same initial temperature, the water at the top of the mountain reached its boiling point first because the lower atmospheric pressure allowed the vapor pressure to be achieved at a lower temperature.

In contrast, the stations located at lower elevations experience higher atmospheric pressure, requiring a higher temperature to reach the boiling point of water. Hence, the water at these stations takes longer to reach the boiling point compared to the water at the top of the mountain.

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The molar concentration of magnesium nitrate in the solution is 0.0350 M.

We can start by calculating the number of moles of magnesium nitrate:

moles of Mg(NO₃)₂ = mass / molar mass

= 0.17 g / (24.305 g/mol + 2x14.007 g/mol + 6x16.00 g/mol)

= 0.00105 mol

Next, we can calculate the molarity (M) of the solution using the formula:

M = moles of solute / volume of solution (in liters)

First, we need to convert the volume from milliliters (mL) to liters (L):

30.0 mL = 0.0300 L

Now we can plug in the values:

M = 0.00105 mol / 0.0300 L

= 0.0350 M

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Answer:

-1300. kJ  

Explanation:

We have two equations:

1. P₄(s)       +3O₂(g) ⟶ P₄O₆(s);                 ΔH₁  = -1640.1 kJ

2. P₄O₁₀(s)               ⟶ P₄(s)      + 5O₂(g); ΔH₂ =  2940.1 kJ

From these, we must devise the target equation:

3. P₄O₆(s)  + 2O₂(g) ⟶ P₄O₁₀(s);               ΔH = ?

The target equation has P₄O₆(s) on the left, so you reverse Equation 1.

When you reverse an equation, you reverse the sign of its ΔH.

4. P₄O₆(s)                 ⟶ P₄(s)       +3O₂(g); ΔH₁  =  1640.1 kJ

Equation 4 has P₄ on the right. That is not in the target equation.

You need an equation with P₄ on the left, so you reverse Equation 2.  

5. P₄(s)      + 5O₂(g)  ⟶ P₄O₁₀(s);               ΔH₂ = -2940.1 kJ

Now, you add equations 4 and 5, cancelling species that appear on opposite sides of the reaction arrows.

When you add equations, you add their ΔH values.

You get the target equation 3:

4. P₄O₆(s)                      ⟶ P₄(s)        + 3O₂(g);      ΔH₁ =   1640.1 kJ

5. P₄(s)       + 2(5)O₂(g) ⟶ P₄O₁₀(s);                       ΔH₂ = -2940.1 kJ

3. P₄O₆(s)   + 2O₂(g)     ⟶ P₄O₁₀(s);                       ΔH   = -1300.  kJ

ΔH for the reaction is -1300. kJ

Answer:

Combustion

Explanation:

Answer:

CO2 + H2O = C6H12O6 + O2

or

6CO2 + 6H2O = C6H12O6 + 6O2 if it need to be balanced

Answer:

Answer is 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Explanation:

1. The coefficient (green) is 45

2. The exponent (yellow) is 9

To convert from giga grams (Gg) to grams (g), the following coversion scale can be use:

1 Gg = 10⁹ g

With the above convesion scale, we can convert 45 Gg to g as follow

1 Gg = 10⁹ g

Therefore,

45 Gg = 45×10⁹ g

Thus, 45 Gg is equivalent to 45×10⁹ g. Hence, we can conclude as follow:

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Answer:

I would say the top one but im not confident in the answer

Answer:

By adding, a few drops of AgNO3

Dilute HCl reacts with silver nitrate to give a white precipitate of silver chloride.

On the other hand there is no reaction observed when dilute Nitric acid is treated with silver nitrate solution. That is obvious

Reactions :-

HCl(aq) + AgNO3(aq) >>> AgCl(s) + HNO3(aq)

HNO3(aq) + AgNO3(aq) >>> No reaction + No precipitate