which of the molecules would a flame ionization detector (fid) be sensitive to after separation on a gas chromatography column?

Answer:

D

Explanation:

They cannot combine with one another to form more complex substances. that's the answer

The compounds have in common is they cannot combine with one another to form more complex substances. The correct option is D.

Compounds are the substances made up of numerous similar molecules made up of atoms from different elements and kept together by chemical bonds. Therefore, a molecule made up of only one type of atom is not a compound.

There are different types of compounds that are made by combining of different substances. Like, ionic compounds are made by combining metals and non-metals.

Compounds are the substance that can into form further complex substance by combining with another substance because they are already made up of two or more substance.

Thus, the correct option is D. They cannot combine with one another to form more complex substances.

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The trend in ionization energy when proceeding down a group in the periodic table is that it decreases. This is because the atomic radius increases and the number of energy shells increases, making it easier to remove an electron from the atom.

This is due to the increase in atomic radius as you move down a group. As the atomic radius increases, the electrons become further away from the nucleus, making them easier to remove. As a result, the energy required to remove an electron decreases as you move down a group.

The ionization energy is the minimum energy required to remove an electron from an atom or molecular ion in the gaseous state. It is a measure of the strength of the attraction between the electron and the nucleus, and thus of the stability of the atom or ion.

The periodic table is a tabular arrangement of chemical elements, organized on the basis of their atomic numbers, electron configurations, and recurring chemical properties. The elements are grouped into periods, each of which contains elements with similar chemical and physical properties.

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Answer:

the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.

Answer:

The warming of a planet due to trapped radiation.

Answer:

Length of RT = 9.22 cm to the nearest hundredth

Explanation:

Considering the image up in the attachment, ΔRST is a right-angled triangle.

The length of two sides of ΔRST is given as 11cm and 6 cm. The length of the third side which is RT can be obtained using Pythagoras ' rule which says that the sum of the squares of two sides of a right-angled triangle is equal to the square of the hypotenuse.

This rule is given as: c² = b² + a² where c is the hypotenuse and a and b are the other two sides of the right-angled triangle.

In ΔRST, the length of the hypotenuse = 11 cm, the length of one of the two sides = 6cm, length of RT = x

Solving for x: (11 cm)² =  (x cm)² + (6 cm)²

(x cm)² = 121 cm² - 36 cm²

(x cm)² = 85 cm²

x cm = √85

x = 9.22 cm to the nearest hundredth

Therefore, length of RT = 9.22 cm to the nearest hundredth

Answer: 9

Explanation:

In an SN1 reaction with OH-, CH₂=CH-CH₂-Cl will react faster than CH₃-CH₂-CH₂-Cl.

In an SN1 reaction, the rate-determining step is the formation of a carbocation intermediate. The stability of the carbocation intermediate depends on the number of alkyl groups attached to the positively charged carbon. The more alkyl groups attached to the carbon, the more stable the carbocation, and the faster the reaction.

In the given pair of compounds, CH₃-CH₂-CH₂-Cl has a primary carbon, while CH₂=CH-CH₂-Cl has a secondary carbon. Therefore, CH₂=CH-CH₂-Cl will react faster in an SN1 reaction with OH- compared to CH₃-CH₂-CH₂-Cl, because the secondary carbocation intermediate formed from CH₂=CH-CH₂-Cl will be more stable due to the presence of an additional alkyl group.

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Compounds characteristics differ in some cases significantly, from those of the constituent elements. This is due to the fact that when elements in a compound combine, a whole new substance with distinct features results.

A specific chemical composition will always consist of the same elements inside the exact same mass quantities, according to the law of fixed proportions.

Although they may have different appearances, elements and compounds have many things in common, such as being composed of atoms and possessing bonds that connect their atoms. Additionally, both elements but also compounds share the characteristics of being pure as well as homogeneous entities.

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Answer:

Cause/ effect relationship.

Explanation:

because the force is the cause of energy that is present and velocity is the effect (speed) that is present.

to describe how proteins are produced

Answer:

to describe how proteins are produced

Explanation:

Answer:

97.7 kJ

Explanation:

We'll use the formula for specifc heat: Q=mcΔT

Q= heat/energy (Joules), m= mass (grams), c= specific heat (different for each substance and is usually given)

ΔT= final temperature - initial temperature

Let's check our given units and see if they're the correct, here they all are. Let's plug in what we know.

Q=mcΔT

Q=(480)(0.96)(234 - 22)

Q=(480)(0.96)(212)

Q= 97,690 J

Before we submit an answer, let's check out units. We have our answer in Joules, but we want it it kilojoules, so we'll convert it knowing that:

1000 Joules = 1 kilojoule

97,690J x \(\frac{1 kJ}{1000J}\) = 97.7kJ

Explanation:

the answer and the working out is shown above.

The maximum inflation pressure is 476 kPa.

Gas laws are a set of fundamental principles that describe the behavior of gases under different conditions of temperature, pressure, and volume. These laws provide a basis for understanding the properties of gases and how they react in different situations.

We know that

P1 = 450.0 kPa

T1 = 17.0 °C + 273 = 290 K

P2 = ?

T2 =  34.0 °C + 273 = 307 K

Thus we have that;

P1/T1 = P2/T2

P1T2 = P2T1

P2 = P1T2/T1

P2 = 450.0 *  307/290

P2 = 476 kPa

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Answer:

A, C, B

Explanation:

\(\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}\)

The correct sequence is A C B

A) Your eardrum begins vibrating

C) The hammer, anvil, and stirrup begin moving

B) Electrical impulses travel along nerve fibers

Answer:

21%

Explanation:

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\\)

From the question we have

\(volume = \frac{1000}{13.6} \\ = 73.52941...\)

We have the final answer as

Hope this helps you

Answer:

C

Explanation:

Electromagnetic waves travel at the speed of light and do not require molecules (gas, solid or liquid) to vibrate and travel.

Soundwaves when singing or from thunder vibrate particles to reach our ears and are known as mechanical waves.

Answer:313

Explanation:Hope its rught or i calculated wrong

Placing a dialysis bag filled with salt into a beaker of distilled water would result in the process of osmosis, where the water molecules move from an area of high concentration (the beaker) to an area of low concentration (the dialysis bag) in an attempt to reach equilibrium.

This would cause the water to diffuse into the dialysis bag, causing it to expand as the salt ions cannot pass through the semi-permeable membrane.

As more water enters the bag, the concentration of salt inside the bag decreases and the concentration of salt in the beaker increases. Eventually, the concentration on both sides of the membrane will equalize and the movement of water will stop.

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Sebacic acid (HOOC−(CH2)8−COOH) is a naturally occurring dicarboxylic acid found in urine. A 200 mg sample of sebacic acid crystals would have the highest solubility in a dilute aqueous solution of (d) water. 

A dicarboxylic acid is an organic compound which has two carboxyl functional groups (-COOH) and a general formula of CnH2n-2O4. They are a kind of carboxylic acid. Some dicarboxylic acids occur naturally, but most are produced synthetically. Sebacic acid is one of those dicarboxylic acids that occurs naturally and is found in urine. It is HOOC−(CH2)8−COOH in chemical form.

A dilute aqueous solution of water is expected to have the highest solubility for a 200 mg sample of sebacic acid crystals. Solubility refers to the capacity of a substance to dissolve in a solvent to form a homogeneous solution. It is mostly expressed as the amount of the solute that can dissolve in a given amount of solvent at a particular temperature.

Seabacic acid is a polar molecule due to its two carboxyl functional groups which gives it the potential to form hydrogen bonds with water molecules.

Hydrogen bonds increase the solubility of a compound. Ethanol, Hydrochloric acid, and Sodium hydroxide are also polar substances, but their polarity is lower than that of water. So, a dilute aqueous solution of water is the best option for the highest solubility of a 200 mg sample of sebacic acid crystals.

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Answer:

Explanation:

The net ionic equation is essentially the most simplified version of a reaction with only the reactants that form the precipitate (the solid). Due to this it is extremely important to properly write your ionic equation first. In your total ionic equation, you forgot to balance the compounds with 2- charges.  The coefficients in your equation is due to the 2- charge of sulfate and 2+  charge of Strontium. Additionally, precipitates are solid which means they do not dissociate. SrSO4 will stay together while KBR which are both spectator ions will dissociate leaving you with the ionic equation below.

Total Ionic Equation: Sr^2 (aq)+  + 2Br ^1- (aq) +2K ^ 1(aq) +  SO4 ^2- (aq) --> SrSO4 (s) + 2K^1+ (aq) + 2Br^1- (aq)

The coefficient of 2 on both K and Br in the products is to ensure that the equation is balanced and that for your net ionic equation, all spectator ions cancel. When you cancel all of the ions that dissociate you are left with the essence of the reaction:

Net Ionic Equation:  Sr^2 (aq) + SO4 ^2- (aq) --> SrSO4 (s)

The final gas volume, O, could be either larger or smaller than 2.96 L, depending on the final pressure and temperature. While heating the gas to a higher temperature, O could be larger than 2.96 L, but it could also be smaller.

The final gas volume, O, could be either larger or smaller than 2.96 L, depending on the final pressure and temperature. To understand why, we can look at the ideal gas law equation, PV = nRT. In this equation, P represents pressure, V represents volume, n represents the number of moles of gas, R is the gas constant, and T represents temperature.

Let's analyze the situation given in the question. We have a sample of xenon gas at a temperature of 306 K and a pressure of 0.847 atm, occupying a volume of 2.96 L. Now, if the pressure of the gas is decreased, while at the same time it is heated to a higher temperature, the final gas volume, O, could be either larger or smaller than 2.96 L.

If we decrease the pressure while keeping the temperature constant, according to Boyle's law, the volume of the gas will increase. So, in this case, O would be larger than 2.96 L. However, if we simultaneously increase the temperature while decreasing the pressure, the situation becomes more complex. The combined effect of the pressure decrease and temperature increase could lead to different outcomes for the final volume.

For example, if the pressure decrease is significant and the temperature increase is relatively small, the volume may still increase, resulting in O being larger than 2.96 L. On the other hand, if the pressure decrease is small and the temperature increase is significant, the volume may actually decrease, resulting in O being smaller than 2.96 L.

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The Haber process is a complex industrial process, and several factors must be taken into consideration when determining the optimum temperature.

What is Harber process?

Ammonia (NH3) is created chemically by the Haber process from nitrogen gas (N2) and hydrogen gas (H2). The technique was created in the early 20th century by a German chemist by the name of Fritz Haber, hence the name.

With the aid of a catalyst, usually iron, the Haber process involves the reaction of nitrogen gas and hydrogen gas at high pressure and high temperature. The reaction's chemical equation is as follows:

                   N2 + 3H2 ⇌ 2NH3

In the Haber process, the creation of ammonia (NH3) is an exothermic reaction. Le Chatelier's principle states that an exothermic reaction is more advantageous at lower temperatures. In order to maximise the ammonia yield, one might therefore infer that the Haber process should be carried out at low temperatures.

But because the Haber process is a sophisticated industrial procedure, choosing the ideal temperature requires careful thought of a number of variables. While a low temperature may promote the forward reaction, it may also cause the reaction to proceed more slowly, resulting in less ammonia being produced. The pressure and concentration of the reactants also have an impact on reaction rate.

The Haber process has been successfully used at temperatures between 400 and 450°C, based on the catalyst employed. Due to the low temperature favouring the forward reaction, the reaction rate is high enough at this temperature to achieve an acceptable ammonia production rate while also allowing for a good yield of ammonia. Moreover, the inclusion of a catalyst (often iron) can speed up the reaction even more and boost ammonia output.

In conclusion, even if the forward reaction in the Haber process may be favoured by a low temperature, this does not mean that this temperature is the best one because other variables that affect the reaction rate and production rate may also be at play. By testing, it has been discovered that a catalyst and a temperature of roughly 400–450°C offer the greatest ammonia yield and reaction rate balance.

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Because sodium has a valency of 1, the mass equivalent of a photon is 3.37 1036 kg. Emissions with a wavelength of 446 nm give sodium flames their distinctive yellow hue.

In order to answer this issue, we must first determine the photon's energy. We then use an equation to convert that energy to mass energy. We can get the mass equivalent of a photon, as requested in the question, using mass equivalent.

The special relativity theory of Einstein led to the equality of mass and energy. Which merely means that energy can be transformed into mass and the reverse.

E=h×c/λ

E = energy of photon

h = planck's constant =6.626×10^−34Js

c = speed of light = 3×10^8m/s

λ= Wavelength of photon = 589nm=598×10^−9m

E=3.37×10^−19J

From mass energy equivalence we know,

E=mc^2

M=3.37×10^−36kg

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a) The maximum amount of work (AG) from/for this reaction when [A] = 0.96 M is -4.00 kJ (atol=1e-08).
b) When AG = –3.80 kJ, the concentration of B is 0.18 M (rtol=0.03, atol=1e-08).
c) When AG = -8.00 kJ, the reaction quotient (Q) is 0.036 (rtol=0.03, atol=1e-08).
d) At equilibrium, when [A] = 0.39 M and the temperature is 165.5 °C, the enthalpy (AH°) of the reaction is -11.10 kJ/mol (rtol=0.02, atol=1e-08) and the entropy (AS°) of the reaction is -0.53 J/mol.K (rtol=0.03, atol=1e-08).

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Answer:

how and why elements what?? why they exist?? im gonna assume that's what you meant, so elements exist because we're all on earth and without elements, we don't have resources to live. the earth is made of elements and if there were none, we wouldn't even have a planet

Explanation:

^

Explanation:

From top to bottom

transfer

substance

cooler

good

energy

metal

insulator

wood

heat

particles

particles

hotter

gases

convection

energy

A chemist dissolves 468.mg of pure hydroiodic acid in enough water to make up 170.ml of solution. The PH of the solution is 1.13.

Let's determine the pH step-by-step:

The steps to determine the PH of the solution are given below:

Step 1: The molar mass of hydroiodic acid is 127.91 g/mol.

Step 2: First, calculate the number of moles of hydroiodic acid. Moles of HIA= 468mg / (127.91g/mol)= 0.00366mol

Step 3: Since the volume of the solution is given, calculate the molarity of hydroiodic acid.

Molarity= Moles of HIA/ Volume of solution (L)= 0.00366mol/ 0.170L= 0.0216M

Step 4: Hydroiodic acid is a strong acid, its dissociation is complete. Therefore, [H+]= 0.0216M

Step 5: Calculate the PH of the solution using the formula below: PH = -log[H+]= -log(0.0216) = 1.13

Therefore, the PH of the solution is 1.13.

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