you are runnig a reaction to make a carboxylic acid, but what appears to be the product spot is too low on the tlc plate and is elongated, i.e., it isn't a nice circle but is stretched out a lot. to make this spot rounder and move a little farther, which of the following is most likely to

Answer:

False

Explanation:

Solubility refers to the ability of a substance to dissolve in a solvent, usually a liquid. It is a measure of the amount of a substance that can dissolve in a given amount of solvent at a given temperature. Solubility is not related to the ability of a substance to burn.

Q.1-

Given,

mass - 10grams

volume - 24 cm³

density = mass/volume

density = 10/24

density = 0.416 g/cm³

Q.2-

Given,

mass - 700grams

volume - 1100cm³

density = mass/volume

density = 700/1100

density = 0.6363 g/cm³

Answer:

i think kinetic energy sorry if I'm wrong.

98.8 mL of water must be added to 157.2 mL of 2.80 M KOH to give a 1.72 M solution.

To find the volume of water to be added, we can use the formula:

M1V1 = M2V2

where M1 and V1 are the initial concentration and volume of the KOH solution, and M2 and V2 are the final concentration and volume of the solution after water is added.

We can rearrange the formula to solve for V2:

V2 = (M1V1) / M2

First, let's calculate the amount of moles of KOH present in the initial solution:

moles of KOH = 2.80 M x 0.1572 L = 0.4402 moles

Now we can use the formula to find the final volume:

V2 = (M1V1) / M2 = (2.80 M x 0.1572 L) / 1.72 M = 0.256 L

Finally, we can find the volume of water needed to be added by subtracting the initial volume from the final volume:

Volume of water to be added = V2 - V1 = 0.256 L - 0.1572 L = 0.0988 L

Converting to milliliters:

Volume of water to be added = 98.8 mL

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Answer:

The "customary" system??

Explanation:

I'm assuming that the "customary" system is an alternative name for imperial units, because cups are an imperial unit.  They are most certainly not metric.

a. Decreasing alpha from 0.05 to 0.01 makes the significance level more stringent. You will be less likely to reject the null hypothesis, even when it's false. This increases the probability of a Type II error, thus potentially reducing the power of the test. The power curve will shift to the left.

b. If the sample size is reduced from 90 to 50, the effect on the power curve is that it will also shift towards the left.

The power curve is a graph that shows the probability of rejecting the null hypothesis as a function of the true value of the mean.

In the given scenarios of this study, Reducing the significance level and reducing the sample size will shift the power curve to the left, indicating a decrease in the statistical power of the test.

The power of a statistical test is the probability that it correctly rejects the null hypothesis when the alternative hypothesis is true.

a) Reducing alpha from 0.05 to 0.01 means that we are more stringent in our assessment of whether the new treatment is effective.

This will result in a decrease in the power of the test, meaning that it is less likely that we will be able to detect a difference between the new treatment and the previous treatment.

b) If the sample size is reduced from 90 to 50, the effect on the power curve is that it will also shift towards the left.

This is because a smaller sample size decreases the power of the test. A larger sample size provides more information and thus makes it more likely to correctly reject the null hypothesis when the alternative hypothesis is true.

Therefore, by reducing the sample size, you are decreasing the likelihood of detecting a true effect if one exists, thus reducing the power of the test.

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The Required Correct Answer for the rate of appearance of N2 is 1.4 g/s.

Explanation : Given reaction is2NH3(g) → N2(g) + 3H2(g)The stoichiometric coefficients of NH3 and N2 in the balanced chemical equation are 2 and 1 respectively, which indicates that one mole of N2 is produced for every 2 moles of NH3 consumed.The rate of disappearance of NH3 is 1.7 g/s.

Number of moles of NH3 disappearing per second can be determined by the following formula:n = m/MwWhere,n = number of moles of NH3 disappearing per secondm = mass of NH3 disappearing per secondMw = molecular weight of NH3.The molecular weight of NH3 is 17 g/mol.

So,m/Mw = 1.7/17= 0.1 mole/sNow we know that 2 moles of NH3 produce 1 mole of N2. Hence, 0.1 mole/s of NH3 will produce (1/2) × 0.1 = 0.05 mole/s of N2The mass of N2 produced can be calculated by using the formula:m = n × MwThe molecular weight of N2 is 28 g/mol.So, m = 0.05 × 28= 1.4 g/s

Therefore, the rate of appearance of N2 is 1.4 g/s.

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Answer:

Na2CrO4 + AgNO3

Al2(SO4)3 + Ba(NO3)2

BaCl2 + K2CrO4

Explanation:

Answer: 0.0129

Explanation:

Answer:

carbon-12

Explanation:

carbon 6/12 isotope has 6 neutrones and it is considered as a metal.

The situations introduce significant amounts of oil into the ocean, leading to severe environmental damage and posing a threat to marine life. Preventing and mitigating these types of pollution incidents is crucial for maintaining healthy marine ecosystems and protecting our oceans.

Petroleum in the ocean is not considered a pollutant when it occurs due to natural seepage. This is because natural seepage is a natural process that occurs in the ocean and has been happening for millions of years. In fact, studies have shown that natural seepage accounts for more oil entering the ocean than all human activities combined.
On the other hand, when petroleum enters the ocean due to human activities such as leaking from a ruptured pipeline, extraction on the sea floor, or oil tankers running aground, it is considered a pollutant. This is because these activities are not natural and can have harmful effects on the environment and marine life.
When petroleum enters the ocean due to human activities, it can have a range of negative impacts. For example, it can harm marine life, damage sensitive habitats such as coral reefs and wetlands, and contaminate drinking water sources. It can also have economic impacts, such as reducing tourism and fishing revenues.
Overall, while petroleum in the ocean is not considered a pollutant when it occurs due to natural seepage, it is important to prevent and mitigate human-caused oil spills to protect the environment and marine life. This can be done through measures such as improved safety standards for oil extraction and transportation, early detection and response systems, and environmental assessments.
Hi! Your question is: "Petroleum in the ocean is not considered a pollutant when ________."
Petroleum in the ocean is not considered a pollutant when natural seepage is responsible. Natural seepage occurs when oil leaks from underground reservoirs through cracks and fissures in the Earth's surface, eventually reaching the ocean. This process is a natural phenomenon and has been happening for millions of years. While it can still have negative effects on marine ecosystems, it is not considered pollution since it is a part of the Earth's natural processes.
In contrast, petroleum becomes a pollutant when it enters the ocean due to human activities, such as when it leaks from a ruptured pipeline, results from extraction on the sea floor, spills after being sent to a refinery, or when oil tankers run aground.

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The name given to the most intense peak found in a mass spectrum is the base peak. This peak represents the most abundant fragment ion produced from the parent molecule. It is used as a reference peak for the relative abundance of other peaks in the spectrum.

The base peak is typically used as a reference peak in mass spectrometry to determine the relative abundance of other peaks in the spectrum. It represents the most abundant fragment ion produced from the parent molecule and is typically assigned a relative abundance of 100%. Other peaks in the spectrum are then compared to the base peak to determine their relative abundance.

The molecular ion peak, for example, represents the intact parent molecule and is often less intense than the base peak due to the ease of fragmentation. The major fragment peak, on the other hand, represents the most abundant fragment ion produced from the parent molecule, but it may not necessarily be the most intense peak in the spectrum. The radical cation peak is a less common peak that represents a radical cation produced by electron impact ionization.

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Answer:

"Like when people say like im a party fowl but I'm like OMg, I'm like the reason everyone loves the 4th of July like I am 4th of July.

Explanation:

As magnesium ignites easily in air and burns with a bright light, it's used in flares, fireworks and sparklers. I imagine Magnesium talks like a valley girl lol.

Molarity of the solution = 1 M

Given

342 grams (1.00 mole) of sucrose

The solution is 1L

Required

The concentration

Solution

The concentration of sucrose can actually be expressed in % or ppm, but there are data that need to be added such as density of solution and density of sucrose.

The concentration that can be determined from the available data is molarity

Molarity : moles of solute per liters solution

Molarity = n : V

Molarity = 1 mole : 1 L

Molarity = 1 M

The number of molecules that are needed in a 23.45 g sample of copper (ii) hydroxide, are 1.45 x 10²³.

Avogadro's number is the measurement of the one mole of any substance that is equal to the Avogadro's number.

Avogadro's number is 6.022 × 10²³.

To calculate the moles

Moles = mass / molar mass

Mass is 23.45 g

Molar mass is 97.562

Putting the value in equation

Moles = 23.45 g/ 97.562 = 0.24 mol.

The moles of copper (II) hydroxide has been 0.24 mol.

The number of molecules in 0.24 mol sample has been driven by:

1 mol = 6.022 × 10²³.

0.24 mol = 0.24 x 10²³.

0.24 mol = 1.45 x 10²³.

Thus, the number of molecules that are needed in a 23.45 g sample of copper (ii) hydroxide, are 1.45 x 10²³.

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t = 57 min., Therefore, we can say that it takes 57 minutes for cyclopropane's partial pressure to drop from 1 atm to 0.125 atm at 500°C.

Propene (CH3CH=CH2) is produced by the isomerization of cyclopropane, which is a first-order process. A sample of cyclopropane converts to propene in 79 minutes at 760 K.

The reaction is a first-order reaction because it is an isomerization reaction, and its rate constant is expressed in terms of minutes. The sum of the powers or exponents that the concentration terms are raised in the rate law expression can be used to define the order of a reaction.

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Diffraction occurs whenever a portion of a wavefront is obstructed by some opaque object.

Answer:

1) Monochrome

2) Monocot

3) Monosaccharide

4) Monounsaturated

5) Monoxide

Explanation:

The prefix mono or mon is of Greek origin and it means single, lone or one.

From the meaning of the words we can tell that they have something in common:

1) Monochrome: This refers to an artwork, a painting or drawing that has just one color.

2) Monocot: This is a type of flowering plant that has a single embryo and a single cotyledon.

3) Monosaccharide: This is a type of simple sugar that contains one sugar unit that cannot be split.

4) Monounsaturated: This refers to a molecule that contains one double or triple bond.

5) Monoxide: This refers to a form of oxide that contains only one oxygen atom.

From the definitions above, all the words mean having only one or a single item.

That is what they have in common.

The atomic theory is the each chemical element is made of fundamental unit called as atom

The first postulated by john dalton the atomic theory of matter contends and each chemical element is made of fundamental unit called as atom and all of atom of given element are identical and gold, copper and iron zinc are this all are individual element made up of same atoms and a theory of nature of matter called atomic theory and all material substances consist of vey tiny particles or atom of not really many kind and all the atom of the same kind are uniform in size as well as weight and other properties

Gas vibrate and move freely at high speed and liquid vibrate move about and slide past each other and solid vibrate but generally do not move from place to place and solid have the strongest intermolecular forces of attraction and in liquid it is less than solid but more than and gases in gases it is very weak

Gas are well separated with no regular arrangement and liquid are close together with no regular arrangement and solid are tightly packed usually on a regular pattern

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To reach break point chlorination in a 96,000 gallon pool with a difference of 0.4 ppm between the free chlorine and total chlorine levels, approximately 7.68 ounces of chlorine is needed.

To calculate the amount of chlorine needed to reach break point chlorination in a 96,000 gallon pool, we first need to find the difference between the total chlorine and free chlorine levels. Break point chlorination is achieved when the free chlorine level equals the total chlorine level.

Given that the free chlorine level is 1.4 ppm and the total chlorine level is 1.8 ppm, the difference between them is:

1.8 ppm - 1.4 ppm = 0.4 ppm

Now, we need to determine the amount of chlorine required to raise the free chlorine level by 0.4 ppm in a 10,000 gallon pool. The given information states that it takes 2 ounces of dry chlorine (67% concentration) to raise a 10,000 gallon pool's chlorine level by 1 ppm.

To calculate the amount of chlorine required to raise the free chlorine level by 0.4 ppm in a 10,000 gallon pool, we can set up a proportion:

2 ounces / 1 ppm = X ounces / 0.4 ppm

Solving for X (the amount of chlorine needed for 0.4 ppm increase in a 10,000 gallon pool):

X = (2 ounces / 1 ppm) * 0.4 ppm = 0.8 ounces

Now, we can calculate the amount of chlorine needed for the 96,000 gallon pool by scaling the chlorine required for the 10,000 gallon pool:

Amount of chlorine needed = (0.8 ounces / 10,000 gallons) * 96,000 gallons

Amount of chlorine needed = 0.8 ounces * 9.6 = 7.68 ounces

Therefore, approximately 7.68 ounces of chlorine is needed to reach break point chlorination in the 96,000 gallon pool.

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If the zero is located in the RHP and the poles are located in the LHP, it is possible that the process will exhibit an inverse response based on the transfer function G(s) = K(Tzs + 1) / ((115 + 1)(T25 + 1)).

To determine when the process will possess an inverse response based on the given transfer function G(s) = K(Tzs + 1) / ((115 + 1)(T25 + 1)), we need to analyze the characteristics of the transfer function.

In a transfer function, an inverse response occurs when the sign of the phase angle changes by 180 degrees or π radians as the frequency increases. Mathematically, this corresponds to a pole and a zero that are located in the right-half plane (RHP) of the complex plane.

From the given transfer function G(s) = K(Tzs + 1) / ((115 + 1)(T25 + 1)), we can observe the following:

The numerator of the transfer function has a single zero, which is given by (Tzs + 1).

The denominator of the transfer function has two poles, which are given by ((115 + 1)(T25 + 1)).

To determine the location of the poles and zeros, we need specific values for T, z, and K. Without those values, we cannot determine the exact location of the poles and zeros or whether they lie in the RHP.

However, in general, if the zero (Tzs + 1) is located in the RHP and the poles ((115 + 1)(T25 + 1)) are located in the left-half plane (LHP), the transfer function may possess an inverse response. The presence of a pole in the RHP and a zero in the LHP can lead to an inverse response behavior.

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Answer:

insoluble

Explanation:

Answer:

what about it

Explanation:

Answer:

The average kinetic energy increases, and the particles collide more frequently.

Explanation:

Methane is found under the ground or under marine sediments  as natural gas which is mined along with crude oil.

Methane is an alkane and has the formula CH4. It is most commonly used as fuel. Methane is the gas that has been renowned as being responsible for explosion in coal mines.

Methane is found under the ground as natural gas which is mined along with crude oil. Large deposit of natural gas is found in many countries in Asia, Africa and the middle east.

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Answer:

C.) 4.85 x 10⁻¹⁹ J

Explanation:

To find the energy, you need to use the following equation:

E = hc / w

In this formula,

-----> E = energy (J)

-----> h = Planck's Constant (6.626 x 10⁻³⁴ J*s)

-----> c = speed of light (3.00 x 10⁸ m/s)

-----> w = wavelength (m)

Once you have converted nanometers to meters, you can plug the given values into the equation and solve.

410 nm                1 m
-------------  x  ----------------------  =  4.10 x 10⁻⁷ m
                        1 x 10⁹ nm

E = hc / w

E = (6.626 x 10⁻³⁴ J*s)(3.00 x 10⁸ m/s) / (4.10 x 10⁻⁷ m)

E = 4.85 x 10⁻¹⁹ J

Answer:

Life could not exist on Earth without trees because they produce most of the oxygen that humans and wildlife breathe. Trees absorb carbon dioxide from the atmosphere and release oxygen using the process of photosynthesis.

A buffered solution will resist changes in pH when small amounts of acid or base are added.

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Answer:

Explanation:

Here, we want to spell out the names of the elements present in the compound

There are three elements in the given compound

We have Mg, O and H

The names can be obtained from the periodic table of element

We have;

Mg - Magnesium

O - Oxygen

H- Hydrogen