A mixture of He, Ne, and Ar has a pressure of 14.0 atm at 28.0 °C. If the partial pressure of He is 4.79 atm and the partial pressure of Ar is 4.15 atm, what is the partial pressure of Ne?

Option b is the correct answer. Nucleic acid is a type of biochemical is shown in this illustration.

The representation gave is an improved on variant of the design of a nucleotide, which is a structure block of nucleic acids like DNA and RNA. The nucleotide comprises of three parts: a sugar particle (displayed in the representation as CH2OH), a nitrogenous base (not displayed in this delineation), and a phosphate bunch (displayed in the representation as - O-P=O). The phosphate bunch is adversely charged and can shape hydrogen bonds with different nucleotides to make the foundation of the nucleic corrosive strand. The plan of nucleotides and the arrangement of the nitrogenous bases decide the hereditary code and capability of the nucleic corrosive.

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Option b. Petroleum is not a class of hydrocarbons.

Petroleum is not a class of hydrocarbons; rather, it is a complex mixture of various hydrocarbons and other organic compounds found naturally in geological formations. The three main classes of hydrocarbons mentioned in the options are alkenes, cyclic hydrocarbons, and alkanes.

a. Alkenes are a class of hydrocarbons that contain a carbon-carbon double bond (C=C) in their molecular structure. They are unsaturated hydrocarbons, meaning they have fewer hydrogen atoms attached to carbon atoms compared to the maximum possible.

d. Alkanes are another class of hydrocarbons, consisting of only carbon and hydrogen atoms with single covalent bonds (C-C) between them. They are saturated hydrocarbons, having the maximum number of hydrogen atoms attached to the carbon atoms.

c. Cyclic hydrocarbons are a class of hydrocarbons in which the carbon atoms are arranged in a ring or cyclic structure. They can be further classified as alicyclic, aromatic, or heterocyclic hydrocarbons, depending on the type of bonds and atoms involved in the ring structure.

In summary, petroleum is not a class of hydrocarbons, while alkenes, cyclic hydrocarbons, and alkanes are. Petroleum is a mixture that contains hydrocarbons from these various classes, as well as other organic compounds. Therefore the correct option  B

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Answer:

Empirical formula of a compound means that it provides simplest ratio of whole number.

Explanation:

Mass of boron and chlorine is 9.224% and 90.74%

Answer:

C10H15N is the chemical equation for methamphetamine

Potential energy diagram for a combustion reaction:. CLICK ON IMAGE.

In a typical combustion reaction, the reactants (e.g. a fuel and an oxidizer) are initially at a relatively high potential energy. As the reaction proceeds, the potential energy of the system decreases, and the products (e.g. carbon dioxide and water vapor) are at a lower potential energy than the reactants. The difference in potential energy between the reactants and products corresponds to the heat released during the reaction.

The diagram shows the initial energy level of the reactants, the activation energy required to initiate the reaction, and the final energy level of the products. The activation energy is the minimum amount of energy required for the reaction to occur.

Once the reactants have absorbed enough energy to reach the activation energy threshold, the reaction proceeds spontaneously and releases energy as it progresses to the lower-energy products.

Note that the shape of the potential energy diagram can vary depending on the specific reaction and the reaction conditions. For example, some reactions may have more complex energy profiles with multiple intermediate steps or energy barriers.

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The rate constant for the reaction is either 7.14×10−3 s−1 or 2.50×10−3 s−1, depending on which rate was used to calculate it.

The rate of the reaction is given by the equation:

Rate = -k[A]

where k is the rate constant and [A] is the concentration of the reactant.

Rate at t=140 s:

Rate = (8.00×10−2 M - 0 M) / (140 s - 0 s)

= 5.71×10−4 M/s

Rate at t=400 s:

Rate = (4.00×10−2 M - 0 M) / (400 s - 0 s)

= 1.00×10−4 M/s

Since this is a zero-order reaction, the rate of the reaction is constant, and we can use either rate to calculate the rate constant:

k = Rate / [A]

Using the rate at t=140 s:

k = 5.71×10−4 M/s / 8.00×10−2 M = 7.14×10−3 s−1

Using the rate at t=400 s:

k = 1.00×10−4 M/s / 4.00×10−2 M

= 2.50×10−3 s−1

The rate constant for the reaction is either 7.14×10−3 s−1 or 2.50×10−3 s−1.

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Answer: d. Arrangement of grains

Explanation:

Edge:)))

A, Scientists will use the structure of existing animals as a model :)

Answer:

Scientists will use the structure of existing animal as a model.

Explanation:

-lukelaws

please mark me brainliest I need one more please!!!

Answer:

He or She used the wrong table of bond energies

Explanation:

We know that we obtain the energy of a reaction also known as the enthalpy of reaction from the formula; ΔHo(reaction) = sum of the bond energies of bonds being broken - sum of the bond energies of the bonds being formed.

Combustion is an exothermic reaction for which the value of ΔH is expected to the negative. If ΔH is not negative, then the calculation was not properly done and the wrong values of bond energy were probably used.

Answer:

He or she may have subtracted the bond energies for the reactants from the products.

Explanation:

Answer:

A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.

Explanation:

Brainlist

Answer:

One way is through fossil fuels. When people burn fossil fuels it enters the atmosphere as carbon dioxide gas. Another way is through animals. Most animals exhale carbon dioxide as a waste product which gets into the atmosphere.

We have a sample of 5.3 g of Na₂CO₃. Before finding the number of molecules we have to find the number of moles. When we are given the mass of a sample and we have to find the number of moles in that sample, we usually use the molar mass. The molar mass can be calculated using the atomic masses of the elements that are in the compound. If we look fot the atomic masses, we find:

Na: 22.99 amu C: 12.01 amu O: 16.00 amu

Since one molecule of Na₂CO₃ has 2 atoms of Na, 1 atom of C and 3 atoms of O, the molar mass of Na₂CO₃ is:

molar mass of Na₂CO₃ = 2 *22.99 + 1 *12.01 + 3 *16.00

molar mass of Na₂CO₃ = 105.99 g/mol

Now that we found the molar mass of Na₂CO₃, we can find the number of moles that we have in the 5.3 g sample of it.

number of moles of Na₂CO₃ = 5.3 g / (105.99 g/mol)

number of moles of Na₂CO₃ = 0.050 moles

In one mol of molecules we have 6.022 *10^23 molecules. using that relationship we can find the answer to our problem:

1 mol of molecules = 6.022 *10^23 molecules

number of molecules = 0.050 moles * 6.022 * 10^23 molecules/1 mol

number of molecules = 3.0 * 10^23 molecules

Answer: there are 3.0 * 10^23 molecules in 5.3 g of sodium carbonate.

Answer:

cooperate and share ideas between each other and put people with people they know well or work well with.

Explanation:

Answer:

5.9405*10^14 Hz

Explanation:

Remember the equation c=v*λ

v=frequency

λ=wavelength

By manipulating the equation, we can get it in terms of frequency:

c/λ=v

Now convert wavelength to meters (1nm=m*10^-9)

5.05*10^-7m (2 decimal places were shifted to make the number between 1-10, hence the -7 exponent)

Use the manipulated equation:

(3.00*10^8)/(5.05*10^-7), which yields:

5.9405*10^14 Hz (or s^-1)

The frequency of the photon will be "\(5.9405\times 10^{14} \ Hz\)".

According to the question,

Wavelength,

or,

          \(= 5.05\times 10^{-7} \ m\)

As we know the equation,

→ \(c = v\times \lambda\)

or,

→ \(v = \frac{c}{\lambda}\)

By putting the values, we get

     \(= \frac{3.00\times 10^8}{5.05\times 10^{-7}}\)

     \(= 5.9405\times 10^{14} \ Hz\)

Thus the above answer is right.

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Answer:

Nuclear

Solar

Wind

Hydro

Geo-Thermal

Explanation:

hope it helps

The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.

Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.

The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.

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Answer:

The speed of the given electromagnetic wave is  3 x 10⁸ m/s.

Explanation:

Electromagnetic wave is a type of energy that is commonly known as light energy. The speed of light in air is about 3 x 10⁸ meters per second (m/s).

All electromagnetic waves travel at the same speed which is equal to speed of light, approximately  3 x 10⁸ meters per second (m/s) through a vacuum or air.

Therefore, the speed of the given electromagnetic wave is  3 x 10⁸ m/s.

Answer:

The atomic mass of element is 65.5 amu.

Explanation:

Given data:

Abundance of X-63 = 50.000%

Atomic mass of  X-63 = 63.00 amu

Atomic mass of X-68 = 68.00 amu

Atomic mass of element = ?

Solution:

Abundance of X-68 = 100-50 = 50%

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (50×63)+(50×68) /100

Average atomic mass =  3150 + 3400 / 100

Average atomic mass  = 6550 / 100

Average atomic mass = 65.5 amu.

The atomic mass of element is 65.5 amu.

A) The chemical symbol for the ion is Fe+

B) It has 20 electrons in total, and there are 6 3p electrons in the ion.

C) There are 6 electrons present in the 3p orbital.

The atomic cation with the given electron configuration is represented by the chemical symbol Fe+.

To determine the number of electrons in the ion, we need to count the electrons present in the electron configuration. In the given configuration, we can see that the 1s orbital has 2 electrons, the 2s orbital has 2 electrons, the 2p orbital has 6 electrons, the 3s orbital has 2 electrons, the 3p orbital has 6 electrons, the 3d orbital has 1 electron, and the 4s orbital has 1 electron. Adding up these numbers, we have:

2 + 2 + 6 + 2 + 6 + 1 + 1 = 20

Therefore, the ion has 20 electrons.

To determine the number of 3p electrons in the ion, we look at the 3p orbital. In this case, there are 6 electrons present in the 3p orbital.

In summary, the chemical symbol for the ion is Fe+, it has 20 electrons in total, and there are 6 3p electrons in the ion.

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Answer:

less than 4.62 g

Explanation:

Sodium chloride contains 39% sodium by mass. Hence, 1 g of sodium chloride will contain:

39/100 x 1 = 0.39 g of sodium.

If 1 g of sodium chloride contains 0.39 g of sodium, then how many g of sodium chloride will contain the 1.8 g required sodium per day?

1 g sodium chloride = 0.39 g sodium

x g sodium chloride = 1.8 g sodium

x = 1.8 x 1/0.39 = 4.62 g of sodium chloride

Since the adult is supposed to consume less than 1.8 g of sodium per day, the mass of sodium that should be consume per day and still be within the FDA guidelines will be less than 4.62 g of sodium chloride.

Answer:

c. fluorine

Explanation:

A single replacement reaction is defined as the chemical reaction in which a strong molecule replaces the weak molecule from a compound.

In a single replacement reaction, the chloride ion in NaCl can be replaced     by fluorine and gives Sodium fluoride as fluorine (F) is stronger than chlorine (Cl) and from other given molecules also. So the single replacement reaction between NaCl and F will be:

NaCl + F2 => NaF + Cl2

Hence, the correct answer is "c. fluorine".

Answer:

\(\mathbf{ \Delta H_{rxn} = -1936 \ kJ/mol}}\)

Explanation:

The equation for the reaction is given as:

\(\mathbf{ CH_{4(g)} + 4 F_{2(g)} \to CF_{4(g)} + 4 HF_{(g) }}\)

At standard conditions; the bond energies are as follows;

Bond       Bond Energies (kJ/mol)

C-H           413

F-F            155

C-F            485

H-F            567

\(\mathbf{\Delta \ H_{rxn} = \sum \Delta H ( reactant) - \sum \Delta H (product)}\)

\(\mathbf{\Delta \ H_{rxn} = \sum [\Delta H \ 4( C-H) + \Delta H \ 4(F-F) ]- \sum[ \Delta H \ 4( C-F)+\Delta H \ 4( H-F)] (product)}\)

\(\mathbf{\Delta \ H_{rxn} = \sum{ \Delta \ H (4*413) + \Delta \ H (4*155) - \Delta \ H (4(485)) + \Delta H (4(567) }}\)

\(\mathbf{ \Delta H_{rxn} = \sum ({ (1652 + 620) - (1940 + 2268)})}\)

\(\mathbf{ \Delta H_{rxn} = \sum ({2272- 4208})}\)

\(\mathbf{ \Delta H_{rxn} = -1936 \ kJ/mol}}\)

Answer: You can give canned food to the poor or try helping people by donating money.

Explanation:

When you give canned food or packets of water the people who haven't eaten in ages or drank clean water can maybe help boost imunity.

When you give money you can help people buy things they need to survive this pandemic.

Answer:

Keep a positive attitude

Explanation:

 Dont worry about thinks that put you down and try to think about something that helps keep up your spirits. For example, thinks that you are proud of.

Try to think a little less of  things like this, ¨Great, now we have a pandemic, now the world is going to end¨ but to thy think more of ¨Hey, this is a time where people need help the most, lets do our best to help them. I believe I can make the world a better place because I have the power of postivity.¨

Put a smile n your face, stand up and say ¨today can be a great day!!¨

The correct statement is C. When the concentration of the reactant decreases, the cell potential decreases.

The cell potential, also known as the electromotive force or voltage, is a measure of the tendency of a redox reaction to occur. It is directly related to the concentrations of the reactants and products involved in the reaction. According to the Nernst equation, which describes the relationship between cell potential and reactant concentrations, a decrease in the concentration of a reactant leads to a decrease in the cell potential. In a redox reaction, the reactants undergo oxidation and reduction processes. The reactant that is being oxidized is called the oxidizing agent, while the reactant that is being reduced is called the reducing agent. The concentrations of these species affect the reaction rates and, subsequently, the cell potential. When the concentration of the reactant decreases, the reaction rate of the oxidizing agent or the reducing agent decreases. This imbalance in reaction rates disrupts the equilibrium of the redox reaction, resulting in a decrease in the overall cell potential. This decrease occurs because there is less availability of the reactant to participate in the reaction and contribute to the electron transfer process. It is important to note that the concentration of the reactant on its own does not determine the cell potential. Other factors such as the nature of the reactants, temperature, pressure, and electrode potentials also influence the overall cell potential. However, in isolation, when the concentration of the reactant decreases, the cell potential will generally decrease as well.

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Answer:

_c+_so2-_cs2+_co= Toxic

Answer:

OB: weathering

Explanation:

the cycle of heating and cooling causes stresses called thermal fatigue, this causes the material to break down. In hand, weathering is a physical and chemical process that causes rocks and minerals on the Earth's surface to break down and decompose. Therefore, this matches the process you have described.

Answer:

weathering fun way to imagen it: just imagen u saw ur worst enemie and pretende it is the rock and the wind and ice and water are ur best friends THEN BAM wind and ice and water(ur best friends) make the rock(worst enemie) to dust :D

Answer:

362g

Explanation:

heat lost by metal= heat gained by acetic acid

tfs are the same so you cando delta T

convert Cal/gc to J/gc

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Answer:

The chemical formula of barium phosphate is Ba3(PO4)2.

Explanation:

brainlest ples :(