What naturally occurring gas combines with moisture in the air to form acidic rainwater.

Answer:

C₂H6

Explanation:

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A

A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:

A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.

B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.

D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.

In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A

For more such questions on hydrocarbon visit:

https://brainly.com/question/21281906

#SPJ8

Answer:

\(Q=20.6\frac{J}{g}\)

Explanation:

Hello there!

In this case, according to the equation for the calculation of the heat during a heating process:

\(Q=mC(T_f-T_i)\)

It is possible to compute it per gram of ice by just removing m from the equation by dividing at both sides. Next we plug in the given specific heat and the final and initial temperatures to obtain:

\(Q=2.06\frac{J}{g\°C}[-15\°C-(-25\°C)] \\\\Q=20.6\frac{J}{g}\)

Best regards!

When glucose reacts with an alcohol to form a glycoside, carbon 1 is the site of the reaction. The correct answer is option d.

A glycoside is a type of organic molecule that has a carbohydrate molecule linked to another molecule through a glycosidic bond. Glucose is a common carbohydrate that is found in glycosides. Glycosides can be used in a variety of applications, including as flavorings, fragrances, and pharmaceuticals.

The site of the reaction when glucose reacts with an alcohol to form a glycoside is carbon 1. This is because the hydroxyl group on carbon 1 of glucose reacts with the hydroxyl group of an alcohol to form a glycosidic bond. The glycosidic bond is formed through the elimination of a water molecule, which results in the formation of an ether linkage.

The reaction can be represented by the following equation:

Glucose + Alcohol → Glycoside + Water

In this equation, the hydroxyl group on carbon 1 of glucose reacts with the hydroxyl group of an alcohol to form a glycosidic bond. The bond is formed through the elimination of a water molecule, which is why water is a product of the reaction.

Thus, carbon 1 is the site of the reaction.

To know more about glycosidic bond click here:

https://brainly.com/question/2161013

#SPJ11

The m/z ratio of the M+ ion peak gives the relative molecular mass of the molecule.

correct option is B

The molecular ion, M+, in a mass spectrum is the precursor ion of the molecule before fragmentation.

The m/z ratio of the M+ ion peak in a mass spectrum gives the relative molecular mass of the molecule.

The m/z ratio is the ratio of the mass of the ion to its charge, and for the M+ ion, this value is equal to the molecular mass of the compound.

By measuring the m/z ratio of the M+ ion peak, it is possible to determine the relative molecular mass of the molecule, which is a crucial piece of information for identifying and characterizing a compound.

to learn more about molecular ion refer here

https://brainly.com/question/20815761#

#SPJ11

First, we need to make the exponent of 10 the same for both.

So let's transform 6.5500 x 10^5 into some number x 10^3.

For this, we need to move the dot to the right, some places where it gives the number 3. In this case, 2 places.

655.00 x 10^3

now we can sum the numbers

8.6500 x 10^3 + 655.00 x 10^3 = 663.65 x 10^3

now we need to transform this number into scientific notation. For this, must have only one number before the dot(on the left side of the dot). We will move the dot to the left, 2 places:

6.6365 x 10^5

Answer: 6.6365 x 10^5

Answer:

A-bone cell, bone cell C-bone tissue, bone cell bone tissue, femur, skeleton, dog B-dog.

Explanation:

It is ordered from the smallest unit (tissue microstructure) to a tissue or organ that are considered macrotisular structures.

The atomic mass of Fe (Iron) is 55.85 amu (Atomic mass unit).

The average mass of an element's atoms, commonly known as its atomic weight, is calculated using the average atomic mass and the relative abundance of isotopes within a naturally occurring element.

The atomic mass of such an atom serves as a measure of its size. The weight of an electron is so much lighter than that of the other particles that the mass of an atom is just that of the nucleus, despite the fact that the mass of an atom is theoretically the sum of the weights of its protons, neutrons, and electrons. The atomic mass of iron is therefore 55.85 amu.

To know more about atomic mass, visit,

brainly.com/question/14250653

#SPJ4

Answer:

At -20°C the mercury state will be liquid

Explanation:

The melting point of a substance is the temperature at which it changes from solid state to a liquid state, and the boiling point is the temperature at which it changes from liquid state to a gaseous state.

If mercury melts at -39°C and boils at 356.9°C, it means that if the temperature is lower than -39°C, mercury will remain al solid state. Between -39°C and 356.9°C, the state of mercury will be liquid and, above 356.9°C mercury will remain at gaseous state.

So, at -20°C the mercury state will be liquid, because that temperature it is between -39°C and 356.9°C.

The final pH of the solution is 2. 72

CH3CH2OH + KMnO4 ---> CH3COOH + MnO2

Mole of ethanol= Concentration * Volume = 0.20 * 30/100 = 6.0 *10-3mole

Molar mass of ethanol= 46g/mol

Mass of ethanol= mole * molar mass = 6 * 10-3 * 46 = 0.276g

Mass of KMnO4= 1.08g

Molar mass of KMnO4= 158g/mol

Molar mass of ethanoic acid formed = 60g/mol

Let's determine the limiting reagent

158g of KMnO4 reacts with 46g of ethanol

1.08g of KMnO4 should react with 46/158 * 1.08 = 0.314g of ethanol

With 0.276g of Ethanol is present, it is said to be the limiting reagent

46g of ethanol yields 60g/mol of ethanoic acid

Then, 0.276g of ethanol will yield = 60 * 0.276 /46 = 0.36g

Mole of ethanoic acid= 0.36/60= 6.0 * 10-3mole

To find the concentration of ethanoic acid= mole/volume

= 6.0 * 10-3/0.03 = 0.20M

Ionization of ethanoic acid will give;

CH3COOH ------> CH3COO- + H+

Ka= 1.8 * 10-5

Then, equilibrium concentrations will be

[CH3COOH] = 0.20-x

[CH3COO-] = x

[H+] = x

Then ,Ka= [CH3COO-][H+]/[CH3COOH]

Substitute values into the equilibrium equation

1.8 * 10-5 = x²/0.20-x

Ethanoic acid is a weak acid, so 0.20-x is approximately 0.20

x²= 0.20 * 1.8 * 10-5

x= 1.9 * 10-3

[H+] = 1.9 * 10-3M

To find the pH, use the formula;

pH= -log[H+]

Substitute the value of H+

pH= -log[1.9 x 10-3]

pH= 2.72

Therefore, the final pH of the solution is 2. 72

Learn more about pH here:

https://brainly.com/question/13557815

#SPJ1

Answer:

A. Heat flows from block 1 to block 2

Explanation:

Thermal or heat energy flows when objects of different temperature come in contact. Heat naturally flows from hot objects (high temperature) to cold objects (low temperature) and will keep on flowing until an equilibrium is reached.

According to this question, two blocks of metal, which are of different temperatures, are illustrated to be in contact. Block 1 is at 60°C while Block 2 is at 25°C. Block 1 is hotter than Block 2, hence, heat will flow from block 1 to block 2.

Answer: 62.4g according to a quizlet

Explanation:

A histogram is a chart that shows the spread of data, which allows us to see outliers and the best number that fits with the data (Option D).

A histogram is a diagram used to show the relationships between two different variables, which is represented by rectangles that indicate a specified amount of a given parameter in the representation.

In conclusion, a histogram is a chart that shows the spread of data, which allows us to see outliers and the best number that fits with the data (Option D).

Learn more about histogram features here:

https://brainly.com/question/24347517

#SPJ1

Answer:

exothermic - if more heat energy is released in forming bonds in the products than is taken in when breaking bonds in the reactants. endothermic - if less heat energy is released in forming bonds in the products than is taken in when breaking bonds in the reactants.

Explanation:

The statement which is considered to be a good example of radiation is: B. Earth is heated by energy from the Sun.

In Science, there are three (3) main types of heat transfer and these include:

Radiation can be defined as the transmission (transfer) of energy in the form of waves particles through a material medium or space. Thus, radiation is a type of heat transfer which causes a person on Earth that is sitting under the Sun to feel warm.

Read more on heat here: brainly.com/question/12072129

80g•1moles/68.94g= 1.16g

Answer:

true

Explanation:

i checked on moogle

Answer:

magnesium

Explanation:

Magnesium has lesser valens electron than Ca, therefore the force for Mg between the nucleus and outer orbit of electron is lesser. Also, the radius will increase

Answer:

Gallium

has a larger ionic radius than (ca).

The required volume flow rate of liquid ethyl alcohol to supply at a rate of 2000 kJ/s is approximately 164.9 L/min.

To determine the required volume flow rate of liquid ethyl alcohol, we need to calculate the fuel flow rate first. Then, we can convert it to volume flow rate.

Given:

Rate of energy release (Q) = 2000 kJ/s

Excess air = 40% (or 0.4)

First, let's calculate the fuel flow rate (m f):

Q = m f × Lower Heating Value (LHV)

The Lower Heating Value (LHV) for ethyl alcohol can be calculated using the enthalpy of vaporization:

LHV = enthalpy of vaporization / molecular weight of fuel

LHV = 42,340 kJ/k mol / 46.07 kg/k mol = 920.11 kJ/kg

Now, we can calculate the fuel flow rate:

m f = Q / LHV

m f = 2000 kJ/s / 920.11 kJ/kg ≈ 2.173 kg/s

Next, let's convert the fuel flow rate to volume flow rate:

Volume flow rate (V f) = m f / density

V f = 2.173 kg/s / 790 kg/m³ = 0.002749 m³/s

Finally, we can convert the volume flow rate to L/min:

V f = 0.002749 m³/s × (1000 L/1 m³) × (60 s/1 min) ≈ 164.9 L/min

Therefore, the required volume flow rate of liquid ethyl alcohol to supply at a rate of 2000 kJ/s is approximately 164.9 L/min.

Learn more about volume from the link given below.

https://brainly.com/question/24086520

#SPJ4

β-carbonyl carboxylic acids are carboxylic acids that contain a carbonyl group (C=O) attached to the β-carbon atom, which is the carbon atom adjacent to the carboxyl group (-COOH).

Other carboxylic acid derivatives include esters, amides, and anhydrides. Esters are formed by the reaction of a carboxylic acid with an alcohol, while amides are formed by the reaction of a carboxylic acid with an amine. Anhydrides are formed by the dehydration reaction of two carboxylic acid molecules.

To classify a compound as a β-carbonyl carboxylic acid or another carboxylic acid derivative, you would need to examine its chemical structure and identify the presence of a β-carbonyl group or other functional groups characteristic of esters, amides, or anhydrides.

Visit here to learn more about   carboxylic acid: https://brainly.com/question/29035899
#SPJ11

Answer:

C: Mg

Explanation:

Hybridization of atomic orbitals is a fundamental concept introduced by Pauling that describes the mixing of orbitals at an atom which adds a definite direction to the Lewis - shared electron pair or electron chemical - bond concept.

Carbon(C) can hybridized on sp, sp2 and sp3 simply because it's valence shell gives room for it.

For silicon(si), when forming covalent bonds with other atoms, it's 3s and 3p orbitals are mixed with each other to form new hybrid orbitals.

Magnesium in itself doesn't hybridized except in magnesium hydrides.

Boron orbitals(B): when boron forms bonds with three other atoms like borazine, they are hybridized to either the sp2 or hybridized to the sp3 which occurs when boron forms bonds with four atoms just as is in metal borohydrides.

0.4l of 65% KCL soln. in stock: 30% KCL and 80% KCL 5 ml 80% KCL is required to fill the doctor's order.

The full form of a chemical compound is potassium chloride made up of ionic bonds and gets dissociated in water into their ions and use to make medicines.

The KCl used in ml for 80% will be = 0.4/ 80 × 100

                                                        = 5 ml

Therefore,  0.4l of 65% KCL soln. in stock: 30% KCL and 80% KCL 5 ml 80% KCL is required to fill the doctor's order.

Learn more about KCL,here:

https://brainly.com/question/11676945

#SPJ4

Answer:

Yes it is indeed

Explanation:

Thanks if you found this helpful

The balanced chemical equation is  \(\rm C_3H_8 + 5O_2- \rightarrow 3CO_2 + 4H_2O\).

Chemical equation is defined as a formulation of mathematics that captures the chemical reaction. We can learn about the reactants and products involved in a chemical reaction by developing a chemical equation. It includes the symbols for the atoms of each element found in the compound, together with a count of how many of each element there are overall in the form of subscripts.

Chemical equations must be balanced in order to satisfy the law of conservation of mass, which states that "the total mass of all products of reaction in a chemical reaction is equal to the total mass of all reactants." A chemical equation is said to be balanced when the number of various elemental atoms on the reactants and products sides are equal. Chemical equations must be balanced by a process of trial and error.

Thus, the balanced chemical equation is \(\rm C_3H_8 + 5O_2- \rightarrow 3CO_2 + 4H_2O\).

To learn more about chemical equation, refer to the link below:

https://brainly.com/question/28294176

#SPJ2

The given compound is a cis isomer as it has double bond and functional group present on same side.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

Learn more about compound,here:

https://brainly.com/question/13516179

#SPJ1

If all the eg orbitals are full, it is impossible to promote an electron from the t2g level to the eg level because there are no empty energy states.

The energy of the photon must be sufficient to promote an electron to a higher energy level.2. Draw the crystal field splitting diagram for octahedral Zn^2+ and Ca^2+ complexes. Predict the color of aqueous solutions of Zn^2+ sals and Ca^2+ salts. Does it matter if the complexes are high-spin or low-spin. The crystal field splitting diagram for Zn2+ and Ca2+ are as follows: Zn2+:

It is colorless in both high-spin and low-spin complexes. Ca2+:

In high-spin complexes, it is colorless, but in low-spin complexes, it is purple.

To summarize, the color of Zn2+ complexes is colorless in both high-spin and low-spin complexes. The color of Ca2+ complexes is dependent on the spin-state, being colorless in high-spin complexes and purple in low-spin complexes.

To know more about orbitals visit:

https://brainly.com/question/32355752

#SPJ11

Answer:

Br

Explanation:

Because Fl is a halogen and also Br is the only halogen element in the choices

The element that would most likely have similar properties with that of Fluorine (F) is Bromine (Br).

The periodic table shows the tabular arrangement and representation of chemical elements. On the periodic table, elements are arranged in groups(vertical columns) and periods(horizontal rows).

Elements in the same groups are said to exhibit similar chemical properties.

From the periodic table, Fluorine (F) and Bromine(Br) are members of the halogen families and they exhibit the same chemical properties.

Learn more about the Periodic table here:

https://brainly.com/question/5216907

The concentration of insulin in this solution expressed in mm will be 1.722 mM.

The concentration of insulin in this solution can be calculated by using the formula: concentration = amount of substance / volume of solution.

First, we need to convert the amount of insulin from mg to mol.
1 mol = 5808 g = 5808000 mg
So, 2 mg = 2/5808000 mol = 3.444 x 10^-7 mol

Next, we need to convert the volume of water from mL to L.
1 L = 1000 mL
So, 0.2 mL = 0.2/1000 L = 2 x 10^-4 L

Now, we can plug in the values into the formula:
Concentration = 3.444 x 10^-7 mol / 2 x 10^-4 L = 1.722 x 10^-3 mol/L

Since the question asks for the concentration in mM (millimolar), we need to convert the concentration from mol/L to mM:
1 mol/L = 1000 mM
So, 1.722 x 10^-3 mol/L = 1.722 mM

Therefore, the concentration of insulin in this solution is 1.722 mM.

To learn more about insulin, click here:

https://brainly.com/question/28209571

#SPJ11

The bond energy between nitrogen and the oxygen labeled "a" in the nitrate ion is predicted to be 1256 kJ·mol-1.

To predict the bond energy between nitrogen and the oxygen labeled "a" in the nitrate ion (NO3-), we need to consider the individual bond energies involved. The nitrate ion consists of one central nitrogen atom bonded to three oxygen atoms.

In the nitrate ion (NO3-), two types of bonds are present: N-O single bonds and an N=O double bond. Given the bond enthalpies provided, the N-O single bond energy is 222 kJ·mol-1, and the N=O double bond energy is 590 kJ·mol-1.

Since there are three N-O single bonds and one N=O double bond in the nitrate ion, we can calculate the total bond energy by summing the individual bond energies:

Total bond energy = (3 × N-O single bond energy) + (1 × N=O double bond energy)

= (3 × 222 kJ·mol-1) + (1 × 590 kJ·mol-1)

= 666 kJ·mol-1 + 590 kJ·mol-1

= 1256 kJ·mol-1

Therefore, the bond energy between nitrogen and the oxygen labeled "a" in the nitrate ion is predicted to be 1256 kJ·mol-1.

Know more about Bond Energy here:

https://brainly.com/question/26662679

#SPJ11