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In order to properly represent the reaction, the equation should be

The amounts of atoms on each side of the

sign should be equal.

The most typical example of deposition would be frost. Frost is the deposition of water vapour from humid air or air containing water vapour on to a solid surface. Solid frost is formed when a surface, for example a leaf, is at a temperature lower than the freezing point of water and the surrounding air is humid.

Answer:

\(\large \boxed{\text{D.) 91 kPa}}\)

Explanation:

We can use the Ideal Gas Law — pV = nRT

Data:

V = 15.0 L

n = 0.55 mol

T = 300 K

Calculation:

\(\begin{array}{rcl}pV & =& nRT\\p \times \text{15.0 L} & = & \text{0.55 mol} \times \text{8.31 kPa$\cdot$ L$\cdot$K$^{-1}$mol$^{-1}\times$ 300 K}\\15.0p & = & \text{1370 kPa}\\p & = & \textbf{91 kPa}\end{array}\\\text{The pressure in the container is $\large \boxed{\textbf{91 kPa}}$}\)

Answer:

respritory and circulatory systems

lungs and heart

Explanation:

Answer:

Energy can exist in many forms within a system and may be converted from one form to another within the constraint of the conservation law. These different forms include gravitational, kinetic, thermal, elastic, electrical, chemical, radiant, nuclear, and mass energy.

Explanation:

The Sun transforms nuclear energy into heat and light energy.

Our bodies convert chemical energy in our food into mechanical energy for us to move.

An electric fan transforms electrical energy into kinetic energy.

both would be right

The balanced molecular equation for this reaction is

2HCl(aq) + Ba(OH)2(aq) ===> BaCl2(aq) + 2H2O(l).

The neutralization of hydrochloric acid and barium hydroxide.

Molecular formula for hydrochloric acid is HCl and barium hydroxide is Ba(OH)2.

Hydrochloric acid and barium hydroxide is aqueous in nature.

HCl have one H+ ion and barium hydroxide has two hydroxide (OH) group.

So, it will take two HCl to neutralize one Ba(OH)2.

Hence, equation for this reaction is

2HCl(aq) + Ba(OH)2(aq) ===> BaCl2(aq) + 2H2O(l).

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The most stable and most reduced form of tetrahydrofolate (THF) carrying a one-carbon group is:

(b) N5-methyl-THF.

In the tetrahydrofolate (THF) molecule, the carbon atoms are numbered according to their position relative to the pteridine ring. The N5 position refers to the nitrogen atom that is directly attached to the pteridine ring, and it is the site where one-carbon groups can be attached.

Among the given options:

a. N10-formyl-THF: This form of THF carries a one-carbon group attached to the N10 position. It is an intermediate in certain metabolic pathways but is not the most stable and reduced form of THF carrying a one-carbon group.

b. N5-methyl-THF: This form of THF carries a one-carbon group attached to the N5 position. It is the most stable and most reduced form of THF carrying a one-carbon group. It is involved in the transfer of methyl groups in various biochemical reactions.

c. N5, N10-methylene-THF: This form of THF carries a one-carbon group attached to both the N5 and N10 positions. It is an intermediate in certain metabolic pathways but is not the most stable and reduced form of THF carrying a one-carbon group.

d. THF-CO₂: This form of THF carries a one-carbon group in the form of a carboxyl group (CO₂) attached to the pteridine ring. It is involved in the transfer of formyl groups in certain metabolic reactions but is not the most stable and reduced form of THF carrying a one-carbon group.

Therefore, the most stable and most reduced form of THF carrying a one-carbon group is N5-methyl-THF (b).

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Answer:

The answer is 2

Explanation:

There are two energy sublevels in the second principal energy level. These two energy sublevels are 2s and 2p. The energy distribution in an atom is divided into a number of principal energy levels, and the principal energy levels are again divided into four basic energy sublevels.

Answer:

They both have the same temperature.

Explanation:

When two or more substances of different temperature are mixed, heat is transfered from hot to clod substances till they attain thermal equilibrium i.e have the same temperature

Answer:

∆H= 3.92 kJ

∆S= 2.54 J

Explanation:

Hope It helps

Answer:

Recessive

Explanation:

Hope this help I think this is the right answer.

There can be emissions of radiations like gamma radiation. There can be emission of particles too like alpha particle. Therefore, the beta decay of platinum-199 is ₇₉Au¹⁹⁹.

Nuclear decay is process in which the radioactive element releases particles or radiations. Alpha particles is ⁴₂He. Alpha particle is nothing but helium particle.

The balanced equation for the beta decay of ₇₈Pt¹⁹⁹.

₇₈Pt¹⁹⁹ \(\rightarrow\) -₋₁e⁰ + ₇₉Au¹⁹⁹

Beta decay is the emission of electron particle from the given isotope. the product is gold- 199.

Therefore, the beta decay of platinum-199 is  ₇₉Au¹⁹⁹.

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Answer:

Gas

Explanation:

The atoms, ions, or molecules that make up the gas are further apart and move freely at high speeds and is can easily be compressible.

Answer:

Gas

Explanation:

A gas is a substance or matter in a state in which it will expand freely to fill the whole of a container' having no shape like a solid and no fixed volume like a liquid.

Answer:

Dettol is an antiseptic and disinfectant which can be applied wounds whereas phenol is corrosive and cannot be used for human application. Phenol being corrosive is limited for use as disinfectant on inanimate objects. Dettol is non-corrosive.

Answer:

Ammonium dichromate is an inorganic compound with the formula (NH₄)₂Cr₂O₇. In this compound, as in all chromates and dichromates, chromium is in a +6 oxidation state, commonly known as hexavalent chromium. It is a salt consisting of ammonium ions and dichromateions

Explanation:

Specific heat capacity if the unknown metal is -0.450 J/(g°C).

The measure of heat complexity needed to increase the temperature of a single unit of substance mass by one degree Celsius is known as specific heat capacity. This factor is crucial in determining how much energy is required for temperature changes in a given substance.

q = mcΔT

where q is the change in thermal energy, m is the mass of the metal, c is its specific heat capacity, and ΔT is the change in temperature.

In this case, we have:

m = 150 g

ΔT = 22.4°C - 12.6°C = 9.8°C

q = -662 J

Plugging in the values,

-662 J = (150 g) c (9.8°C)

Solving for c, we get:

c = -662 J / (150 g × 9.8°C) = -0.450 J/(g°C)

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Answer:

Given the activity series of elements, the reaction that will occur is: 2AgNO3 + Ni -----> Ni(NO3)2 + 2Ag

Answer:

other answer is correct its C

Explanation:

Look at photo

Answer:

Cu

Explanation:

because it is 39.814% of CuSO4

Answer:

The entropy of this reaction (ΔS) = -187.9 J/K

Explanation:

.Step : Data given

ΔS = -187.9 J/K

ΔH = -198.4 kJ

T = 297.0 K

Step 2: The balanced equation

2SO2(g) + O2(g) → 2SO3(g)

Step 3: Calculate the entropy

ΔG = ΔH - TΔS

⇒ΔG = the gibbs free energy

⇒ΔH = the change in enthalpy of the reaction = -198.4 kJ

⇒with T = the temperature = 297.0 K

⇒with ΔS = the change of entropy =  -187.9 J/K

ΔG = -198400 kJ -297*(-187.9kJ/mol)

ΔG = -198400+55806.3

ΔG = - 142593.7 kJ = the gibbs free energy

The entropy of this reaction (ΔS) = -187.9 J/K

Answer:

C. -187.9 J/K

Explanation:

Entropy is just ΔS, which it gives you in the question as -187.9 J/K.

The purpose of the circular patterns on the nose of the B83 is it allows the nose to be crush the impact, and decreasing the amount of the bounce the bomb will have to the normal nose.

The B83 bomb was developed in the late of the year 1970s and it deployed in the year 1983. The B83 bomb yield, or the explosive force is the variable, to the low kiloton range to the 1.2 megatons.

The B83 bomb was designed by the Lawrence Livermore National Laboratory. The B83 bomb has been the very most powerful nuclear weapon consider in the United States.

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The first step in this calculation is to know how many liters is equal to 1 gallon, and the value is 3.785 liters, so now we have to make the following calculation:

1 gal = 3.785 Liters

30.0 gal = x Liters

x = 3.785 * 30.0

x = 114 Liters

A positron forms in the nucleus and is promptly ejected from it, just like the beta particle. In an equation, a positron is represented by the sign e+01. As an illustration, potassium-38 emits a positron and changes into argon-38.

A positron has an electrical charge of +1, the same mass as an electron, and a spin of 1/2.

The three argon (Ar) isotopes that are present in nature are argon-36, argon-38, and argon-40. On the periodic table, argon has an average atomic weight of 39.948 amu.

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Answer:

[Ar] 3d¹⁰ 4s² 4p³

Explanation:

As = [Ar] 3d¹⁰ 4s² 4p³

Answer: 8.59 L of oxygen gas are needed to produce 100 kJ of energy at STP

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number \(6.023\times 10^{23}\) of particles.

Standard condition of temperature (STP)  is 273 K and atmospheric pressure is 1 atmosphere respectively.  

1 mole of every gas occupy volume at STP = 22.4 L

The balanced chemical reaction is:

\(2C_6H_6(I)+15O_2(g)\rightarrow 12CO_2(g)+6H_2O(g)\)

3909.9 kJ of of energy is produced by  = \(15\times 22.4=336L\)

100 kJ of oxygen gas are needed to produce = \(\frac{336}{3909.9}\times 100=8.59L\)

Taking into account the Charles' law, the temperature of the gas if the volume drops to 75.0 L is 246 K or -27 C.

Charles' law establishes the relationship between the temperature and the volume of a gas when the pressure is constant. This law says that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles' law is a law that says that when the amount of gas and pressure remain constant, the ratio between volume and temperature will always have the same value:

\(\frac{V}{T}=k\)

Considering an initial state 1 and a final state 2, it is fulfilled:

\(\frac{V1}{T1}=\frac{V2}{T2}\)

In this case, you know:

Replacing in Charles's law:

\(\frac{100 L}{328 K}=\frac{75 L}{T2}\)

Solving:

\(T2x\frac{100 L}{328 K}=75 L\)

\(T2=\frac{75 L}{\frac{100 L}{328 K}}\)

T2= 246 K= -27 C

Finally, the temperature of the gas if the volume drops to 75.0 L is 246 K or -27 C.

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The number-weighted average molecular weight of this polymer sample is 2,000 g/mol.

To calculate the number-weighted average molecular weight of a polymer, you need to divide the total molecular weight of the sample by the number of polymer molecules.

Number-weighted average molecular weight (Mn) = Total molecular weight / Number of polymer molecules

In this case, the total molecular weight of the polymer sample is 2,000,000 g/mol, and there are 1,000 polymer molecules.

Mn = 2,000,000 g/mol / 1,000 molecules

Mn = 2,000 g/mol

Therefore, the number-weighted average molecular weight of this polymer sample is 2,000 g/mol.

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Answer:

37.04 g/mol in the mass of ammonium fluoride

Explanation:

Because sodium and chlorine on their own have really poisonous/combustive characteristics. However, when they have been chemically bonded together, their characteristics change. They'll be completely harmless. =]

Do NOT ever try a mixture of the two (one that hasn't being chemically combined) it can have fatal results.

The correct coefficients for the equation D + Cl\(_2\)→ DCl\(_3\) is 2,3,2. the correct option is option A.

The balanced equation is indeed a chemical reaction equation in which the overall charge and the amount of atoms for every element inside the reaction are identical for both the products and the reactants.

In those other words, both mass as well as the charge were balanced on the both sides of something like the reaction.

D + Cl\(_2\)→ DCl\(_3\)

The atom of chlorine on left is 2 while on right side, it is 3

2D +3 Cl\(_2\)→2 DCl\(_3\)

Therefore, the correct coefficients for the equation D + Cl\(_2\)→ DCl\(_3\) is 2,3,2. the correct option is option A.

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