convert the following to the unit shown and show your dimensional analysis


135 mm Hg = _________ atm

Answer:

but iron is 2 and 3 by its valance how could it be possible

Answer:

Na

Explanation:

Answer:

It is Rb!!

for plato users

The given statement "The molar enthalpy of sublimation of a given substance can be determined if its enthalpies of fusion and vaporization are known" is true.

The molar enthalpy of sublimation of a substance can be determined if its enthalpies of fusion (melting) and vaporization (boiling) are known. The enthalpy of sublimation refers to the energy required to change a substance from the solid phase directly to the gaseous phase, bypassing the liquid phase.

The enthalpy change during sublimation can be calculated by considering the enthalpies of fusion and vaporization. When a substance undergoes sublimation, it first requires energy to melt from the solid phase to the liquid phase (enthalpy of fusion) and then additional energy to vaporize from the liquid phase to the gaseous phase (enthalpy of vaporization). The sum of these two enthalpies represents the overall energy change during sublimation.

Therefore, by adding the enthalpy of fusion and the enthalpy of vaporization, one can determine the molar enthalpy of sublimation for a given substance.

Learn more about molar enthalpy from the link given below.

https://brainly.com/question/32136429

#SPJ4

The speed of sound depends on these two things: The type of medium and the temperature of the medium; option a.

The speed of sound is the distance covered in meters over a given period of time.

Speed = distance/time

The speed of sound depends on the following:

In conclusion, the speed of sound increases with temperature.

Learn more about speed of sound at: https://brainly.com/question/95976

#SPJ1

Answer:

12.306

Explanation:

12.3+0.005675=12.305675 just put answer as 12.306

Answer:

12.3

Explanation:

I just did it and got it right

Answer:

A hot air balloon taking off

Explanation:

Answer:

help me

Explanation:

plz

Viruses mutate to attack the vaccine molecules so new ones must be continually produced​ is why it's difficult to make for them.

This is defined as a  biological preparation that provides active acquired immunity to a particular infectious disease.

Viruses mutate and attack the vaccine molecules and continue its replication process which is why it's difficult to make vaccines for them.

Read more about Vaccine here https://brainly.com/question/787764

Answer:

Explanation:

a mixture

Answer:

C

Explanation:

Cause waves causes gravity to make higher waves

Answer:

1) Water molecules are polar.

The two molecules of hydrogen are slightly positively charged, whereas the molecule of oxygen is slightly negatively charged. This is because the electrons are more attracted to the oxygen end of the molecule than the hydrogen end.

2) Water molecules frequently organize into spheres.

This is due to the molecules' mutual attraction to one another due to gravity. They also increase surface tension, which also promotes the formation of water spheres. The hydrogen bonds that exist between molecules are what produce the surface tension. This has a balance between being weak enough to be readily disturbed and robust enough to support its own weight inside the sphere.

Hope this helps! :)

Answer:Main Answer:

The mass of CO2 released in the production of 123,000 g of H2 gas is 265,200 g.

Explanation: From the given equation, we can see that the production of 4 moles of H2 requires the combustion of 1 mole of CH4, resulting in the release of 2 moles of H2O and 1 mole of CO2. The molar mass of H2 is 2 g/mol, and the molar mass of CO2 is 44 g/mol. Therefore, the mass of CO2 released in the production of 123,000 g of H2 is (123,000/2) x (1/4) x 44 = 265,200 g.

Answer:

Because it is made up of different minerals which are chemically combined.

Explanation:

What is forest vegetation?

However, Four case studies, namely Mudumalai, Sholayar, Uppangala, and Kakachi permanent plots in the Western Ghats forests, have had their sampling techniques thoroughly discussed.

To learn more about Forest vegetation do follow

https://brainly.com/question/24518939

#SPJ4

The expansion of forest plants across the continents' surfaces is what caused carbon dioxide levels to decline throughout time.

How does increase in forest vegetation affect the amount of \(CO_{2}\) ?

The expansion of forest plants across the continents' surfaces is what caused carbon dioxide levels to decline throughout time.

Carbon dioxide that would otherwise contribute to global warming is absorbed by trees. Plants use the process of photosynthesis to convert carbon dioxide and water into energy. In this way, trees remove the carbon from the atmosphere that we so sorely need to. Trees help the soil capture and store carbon, in addition to capturing carbon dioxide.

Forests are known to be the best carbon sinks when left untouched, whether it be in the Amazon Rainforest or Western Ghats. In addition to serving as a habitat for a wide variety of creatures, vegetation stores a sizable amount of carbon.

Therefore, Increasing vegetation resulted in the dramatic reduction in concentration of \(CO_{2}\).

To learn more about atmospheric changes and carbon dioxide from the given link

https://brainly.com/question/2643283

#SPJ4

The complete stepwise mechanism for the given reaction between 2-Hydroxymethyl benzoic acid and NaH to produce 2-Benzofuran-1(3H)-one, H2 and EtO is given below:

Step 1: Deprotonation of 2-Hydroxymethyl benzoic acid with NaH.

Step 2: Nucleophilic attack of benzoate anion on electrophilic carbon.

Step 3: Intramolecular attack by hydroxyl group.

Step 4: Protonation of intermediate II.

Step 5: Rearrangement of intermediate III.

Step 6: Formation of EtO and H2

The complete stepwise mechanism for the given reaction between 2-Hydroxymethyl benzoic acid and NaH to produce 2-Benzofuran-1(3H)-one, H2 and EtO is given below:

Step 1: 2-Hydroxymethyl benzoic acid undergoes deprotonation with NaH to produce the benzoate anion.

Step 2: The carbanion generated in Step 1 attacks the electrophilic carbon present in the adjacent ester carbonyl group. This generates the intermediate I.

Step 3: The hydroxyl group in the intermediate I undergoes an intramolecular attack on the electrophilic carbonyl group, as shown below. This generates intermediate II.

Step 4:  This is an acid-base reaction wherein H+ ions are transferred from intermediate I to intermediate II. This generates intermediate III.

Step 5:The intermediate III undergoes a rearrangement to form the product, 2-Benzofuran-1(3H)-one.

Step 6: The ethoxide ion generated in Step 1 reacts with the proton source present in the reaction mixture (in this case H2O) to produce EtO and H2.

Learn more about Chemical Reactions from the given link:

https://brainly.com/question/14929452

#SPJ11

Answer: Argon (Ar)

Explanation:

Of the noble gases, Argon (Ar) is present in highest concentration in dry air at sea level.

A current of 3.80 A would need to be applied for 0.24 hours to plate out 5.70 g of lead from a \(Pb(NO_3)_2\) solution.

Q = I × t

moles Pb = (5.70 g)/(331.2 g/mol) = 0.0172 mol

Q = 2 × F × moles Pb

Q = 2 × 96,485 C/mol e- × 0.0172 mol = 3,320 C

t = Q/I = 3,320 C / 3.80 A = 874 seconds

Finally, we convert the time to hours:

t = 874 s / (60 s/min × 60 min/h) = 0.24 hours

A solution typically refers to a homogeneous mixture of two or more substances that are uniformly dispersed throughout each other. The substance that is present in the largest quantity is known as the solvent, while the other substances present in smaller quantities are known as solutes.

Solutions play a crucial role in many areas of physics, including chemistry, material science, and engineering. They can be used to study the properties and behavior of substances, as well as to design and develop new materials with specific properties. The behavior of solutions is governed by several physical laws and principles, including thermodynamics, kinetics, and colloidal chemistry. These laws help us understand phenomena such as osmosis, diffusion, and solubility.

To learn more about Solution visit here:

brainly.com/question/1416865

#SPJ4

The net ionic equation for the acid-base hydrolysis equilibrium that is established when ammonium nitrate is dissolved in water is given below:Answer: NH4+(aq) + H2O(l) ⇌ H3O+(aq) + NH3(aq) + NO3-(aq).

The ionic equation is a chemical equation in which the electrolytes in aqueous solution are represented by their actual ions rather than their complete formulas. It indicates that ions undergo a chemical reaction to produce a new compound.

The net ionic equation displays the actual chemical reaction taking place in an aqueous solution. It is derived by eliminating spectator ions, which do not play any active role in the chemical reaction.The acid-base hydrolysis equilibrium is as follows:NH4+(aq) + H2O(l) ⇌ NH3(aq) + H3O+(aq).

The ammonium ion hydrolyzes to form ammonium ion and hydronium ions. The nitrate ion is a spectator ion that does not participate in the reaction. Therefore, the net ionic equation is given by:NH4+(aq) + H2O(l) ⇌ H3O+(aq) + NH3(aq).

To know more about ionic equation refer to-

brainly.com/question/29299745#

#SPJ11

Answer: With power and energy, power is units of energy divided by time. The same difference as distance and velocity. The units of power are watts, the units of energy are joules.

Explanation:

abcdefghijklmnopqrstuvwxyzExplanation:abcdefghijklmnopqrstuvwxyz

The carbon atoms interspersed with iron atoms in its molecular structure has steel.

The carbon atom have the chemical symbol of C. the atomic number of the carbon is 6. the electronic configuration of the carbon atom is 1s² 2s² 2p². the iron atom has the chemical symbol of Fe. the iron atom having the atomic number 26. the electronic configuration is [Ar] 3d⁶ 4s².

The steel is an alloy which is made up of the iron with the added carbon to it .the carbon improve its strength compared to the irons. steel is the alloy which is made up of the iron and the carbon.

To learn more carbon here

https://brainly.com/question/13719781

#SPJ4

The alcohol is used in the thermometers instead of the water because The freezing point of the alcohol is less than -100°C.

Thermometer is the instrument that is used to measure the temperature of the substance which will be present in the liquid state. The freezing point of the alcohol is less than the  - 100 °C, and  we can measure the very low temperature by using an alcohol thermometer.

The expansion of the alcohol is more than as compare to that of the mercury for the same rise or the fall of the temperature, therefore, the  alcohol used in the thermometer can measure the temperature very more accurately.

To learn more about thermometer here

https://brainly.com/question/6392872

#SPJ4

Mass of water required = 64.42 g

Given

Reaction

6CO2 + 6H2O → C6H12O6 + 6O2

157.35 g CO2

Required

mass of water

Solution

mol CO₂ = mass : MW CO₂

mol CO₂ = 157.35 g : 44.01 g/mol

mol CO₂ = 3.575

From the equation, mol ratio CO₂ : H₂O = 6 : 6, so mol H₂O = mol CO₂=3.575

Mass H₂O = mol x MW H₂O

mass H₂O = 3.575 x 18.02

mass H₂O = 64.42 g

Answer: 64.427

Explanation:

Answer:

Do you have any options, it will narrow down and we can give you the  answer alot faster

Explanation:

Relation between Boiling Point and Pressure is the system pressure is directly proportional to boiling point, If the system pressure is higher, more energy will be needed to create vapor pressure equal to the pressure.

The  boiling point can be defined as the temperature at which the vapor pressure of a liquid is equal to the external pressure, where as another term called Melting point in which the solid will start melting to become a liquid at a given temperature.

On the other hand the freezing point is the temperature at which a liquid is converted into solid occur.

In Boiling point  the liquid substance enters into the gaseous phase, if the external pressure is high, which can lead to increase the temperature for the vapor pressure to become equal to the external pressure.

Learn more about boiling point, here:

brainly.com/question/28203474

#SPJ2

The balanced equations of the redox reactions are as follows:

1. SeO₃²⁻ (aq) + 4 I⁻ (aq) + 6 H⁺ (aq) → Se (s) + 2 I₂ (s) + 3 H₂O (l)

2. I₂ (s)+ 5 OCl⁻ (aq)  + + 3 H₂O (l) → 2 IO₃⁻ (aq) + 5 Cl⁻ (aq) + 2 H⁺ (aq)

3. 4 Zn(s) + NO₃⁻ (aq)  + 9 H⁺ (aq) ---> 4 ZnO₂²⁻(aq) + NH₃ (g) +  3 H₂O (l)

4. 3 SO₃²⁻ (aq) + Cr₂O₇²⁻ (aq)  + 8 H⁺ (aq)  ----> 3 SO₄²⁻ + 2 Cr³⁺ (aq) + 4 H₂O (l)

Redox equations, also known as oxidation-reduction equations, are chemical equations that show the transfer of electrons between reactants and products during a chemical reaction. These types of reactions involve the transfer of electrons from one molecule or ion to another.

In a redox equation, the molecule or ion that loses electrons is said to be oxidized, while the molecule or ion that gains electrons is said to be reduced.

Learn more about balancing redox equations at: https://brainly.com/question/27907895

#SPJ1

Answer:

Tetrahedral, sp3, p

Explanation:

C has 4 bonds and hence its tetrahedral shape with 109.5 degrees. since there are 4 bonds, it is sp3

Answer:

A carbon atom that is surrounded by four hydrogen atoms has a

✔ tetrahedral

molecular geometry.

This geometry results from the arrangement of the

✔ four sp3

hybrid orbitals around the carbon atom.

They are formed when the s-orbital and

✔ three p

-orbitals mix, or hybridize.

Explanation:

Answer:

no

Explanation:

Answer:

The answer is B

It takes approximately 9,510.77 hours for the concentration of 11-trans-retinal to reach \(3.14*10^{-3}M\)

The concentration of 11-trans-retinal can be calculated using the following equation:
\(ln(At/A0) = kt\)
Where At is the concentration of 11-trans-retinal at time t, A0 is the initial concentration of 11-trans-retinal, and k is the rate constant.
Since we know the rate constant is \(1.02*10^{-5} /s\) and the concentration of 11-trans-retinal is \(3.14*10^{-3}M\), we can solve for t.
ln(\(3.14*10^{-3}M/A0\)) = \((1.02*10^{-5})t\)
Solving for t, we get:
\(t = ln(3.14*10^{-3} /A0)/(1.02*10^{-5} )\)
Therefore, it takes approximately 9,510.77 hours for the concentration of 11-trans-retinal to reach \(3.14*10^{-3}M\).

For more question on rate constant click on

https://brainly.com/question/24749252

#SPJ11