what is 43 mg into grams

Hydrophobic colloids option b- can be stabilized by adsorption of ions.

Hydrophobic colloids are colloidal particles that repel water molecules and tend to aggregate or coagulate in aqueous solutions. To stabilize hydrophobic colloids, surfactants or stabilizing agents are added to the system.

These surfactants have hydrophobic and hydrophilic regions that can adsorb onto the surface of the colloidal particles, forming a protective layer that prevents their aggregation. This adsorption of surfactant molecules on the particle surface is commonly referred to as "stabilization by adsorption of ions".

The surfactant molecules adsorb onto the particle surface with their hydrophobic tails pointing inward towards the particle surface and their hydrophilic heads pointing outward towards the solvent, creating a stable colloidal dispersion. This stabilization mechanism is commonly used in the formulation of emulsions, suspensions, and other colloidal systems.

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Answer:

fermentation of crops that are high in sugar (starch) or fat into ethanol,

Explanation:

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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Answer:

C) Send radio waves through intervening media like radio and television.

Explanation:

I took the Final exam

Friends can send radio waves through intervening media like radio and television to communicate. Therefore, option (C) is correct.

Radiofrequency is the lowest region in the electromagnetic spectrum known as the medium of modern digital wireless communication systems. Radiofrequency has a range between 3 kHz and 300 GHz.

All transmission systems work in the radiofrequency spectrum range including analog radio, marine radio, aircraft navigation, amateur radio,  mobile networks, TV broadcasting, and satellite systems.

Radiofrequency has a lot of medical applications such as MRI technology, seismography, and oceanic studies. Our future digital communication systems may work on high-frequency bands of the Radiofrequency spectrum since they can support higher bandwidth.

The frequency of the x-rays and infrared rays is 10¹⁷ to 10²⁰ and 10¹³ to 10¹⁴ respectively. Therefore the frequency of radiowaves is the lowest among all the waves.

Therefore, two friends at different locations can communicate with each other by sending signals of radio waves through radio or television.

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Answer:

\(1s^{2} 2s^{2} 2p^{6} 3s^{2}\)

Magnesium will lose 2 electrons.

Explanation:

Looking at a periodic table, magnesium is in the third period and the second group. It would help to look up where atomic orbitals are on the periodic table, but basically, s orbitals are filled in the first two groups. Since magnesium is in the second group, it will just have filled a 3s orbital with two electrons.

Elements in groups 1A, 2A, and 3A especially like to lose electrons to gain stability. Elements want to have a filled valence (outer) orbital with 8 electrons (except for hydrogen and helium) like noble gases. As such, they will lose or gain electrons in the easiest way possible to get a filled valence orbital. Magnesium wants to have the electron configuration of the nearest noble gas, in this case neon, so it will lose 2 electrons to achieve this stability. It takes much less energy to lose 2 electrons than gain 6 to fill its valence orbital, so magnesium will go for the former.

Answer:

first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge.

Explanation:

Answer:

we would not be able to pkant crops in cold weather so we would change by not eating a lot of crops

Explanation:

crops do not grow well in cold weather

Answer: we need three distinct calculations

Explanation: The first one is that the heat energy released when  the water is cooled to 0"c.

                       The second one is that the heat energy released when water changes its state to solid at constant temprature.

                        The third one is the heat energy released when the ice at 0'c is changed to -2'c.

Answer:

sulphur mozron tried is an ignore a compound with the formula SN it is the Sulphur and a log of the traditional nitric oxide no sulphur monitor ID names smiles and plus s - properties chemical formula and as molar mass 46.07 gmo l - 1

Answer:

D, to repair the damged cells is noy a reason that cells reproduce by siving in order to maintaon homeostasis.

Explanation:

The ∆godiss for acetic acid and monochloroacetic acid is determined by both the enthalpy and entropy contribution.

The enthalpy (∆H) contribution to ∆godiss is due to the energy absorbed or released during the breaking or forming of bonds between the molecules. The entropy (∆S) contribution is due to the degree of randomness or disorder in the system.

For acetic acid, the enthalpy contribution to ∆godiss is negative due to the release of energy during the formation of the hydrogen bond between the carboxyl group and the hydroxyl group. The entropy contribution is also negative due to the decrease in the degree of randomness when the molecules come together to form a solid.

For monochloroacetic acid, the enthalpy contribution is also negative due to the formation of the hydrogen bond and the dipole-dipole interaction between the chlorine atom and the carbonyl group. However, the entropy contribution

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Answer:

Explanation:

Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. ... The importance of photosynthesis in our life is the oxygen it produces

It contains the first carbon-carbon double bond on the third carbon from the omega end of the carbon chain. The correct answer is option. a.

This means that the first double bond in the fatty acid carbon chain is located at the third carbon from the end of the chain opposite to the carboxyl group, which is known as the omega end. Omega-3 fatty acids are a type of polyunsaturated fatty acid that are important for human health, and are commonly found in fish, flaxseed, and other plant and animal sources. They have been shown to have numerous health benefits, including reducing inflammation and improving heart health. Hence option a is correct answer.

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What is the chemical structure of an omega-3 fatty acid?

Multiple choice question.

a. It contains the first carbon-carbon double bond on the third carbon from the omega end of the carbon chain.

b. It contains the first carbon-carbon double bond on the third carbon from the acid end of the carbon chain.

c. It contains three consecutive carbon-carbon double bonds within the carbon chain.

Answer:

its answer d Im pretty sire

Answer:

Heating

Explanation:

Explanation:

In a double displacement reaction, there is an actual exchange of partners to form new compounds.

The reaction is given as shown below:

         AB + CD →  AD + CB

One of the following conditions serves as the driving force for a double replacement reaction:

Answer:

because Electrons are not little balls that can fly

Explanation:

Answer:

Sun

Explanation:

Answer:

earth

Explanation:

The current to produce the 6.50 g Ag when Ag⁺(aq) is the electrolyzed for 2 hr is 0.806 amp.

The chemical equation is as :

Ag⁺(aq) + e⁻   ---->  Ag(s)

The number of the moles  = 6.50 g Ag × 1 mol Ag / 107.9 g

The number of the moles = 0.0602 moles Ag

The moles  e⁻ = 0.0602 mols Ag  × 1 mol e- / mol Ag

The moles e⁻ = 0.0602 moles of the electrons needed

1 mole electrons = 96,500 coulombs (C)

0.0389 moles e⁻  × 96.500 C / mol  × e⁻ = 5809.3 C

2 hr x 60 min / hr x 60 sec / min = 7200 sec.

Current = 5809.3 C / 7200 s = 0.806 amp

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Answer:

298.99 , = 738.39

Explanation:

hope it help you

to gain the answer

Answer:

0 meters

Explanation:

I guessed on the test and I got it right lol.

Vincenty's formula to calculate distance between flat coordinates in meters.

The elevation difference between points W and X is- Zero.

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The correct positions of the different molecular sizes within the column chromatography are as follows: Small molecules: Start,    Intermediate molecules: Middle, and    Large molecules: End

Chromatography is based on the principle where molecules in mixture applied onto the surface or into the solid, and fluid stationary phase (stable phase) is separating from each other while moving with the aid of a mobile phase.

During the process of column chromatography, the different molecular sizes will settle at different positions. The small molecules are going to travel through the column at a much slower pace than the larger molecules. The three molecular sizes involved in the process of column chromatography are the following:

i) Small molecules

ii) Intermediate molecules

iii) Large molecules

Now, we have to place these molecules in their respective positions. The following is a drag and drop table which shows the positions of each molecule within the chromatography process:

Molecule size                      Position

Small molecule                         Start

Intermediate molecule           Middle

Large molecule                         End

Therefore, the correct positions of the different molecular sizes within the column chromatography are as follows:

Small molecules: Start      Intermediate molecules: Middle      Large molecules: End

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Answer:

Carbon:  14

Oxygen: 16

Nitrogen: 15

Sulpher: 16

Answer:

1 ) They are wealthy in gases hydrogen and helium. 2 ) They are very hot and dense . 3 ) They have a solid gravitational pull.

Explanation:

Space where huge size of gaseous and dust cloud is present is called nebula. It is mainly made of hydrogen and helium. Nebula exist in the space which is between the stars and it is call as interstellar space.

Helix nebula is closest nebula which is near the earth. It’s distance from earth is about 700 light years.

Dark nebulae are very dense as well as cold. Nebula can be divided into dark nebula and bright nebula. The gas which is present between the stars is always combine with solid grains cosmic dust.

Nebulae contribute more to stellar creation than other areas of the universe for the following three reasons:

So, the correct options are A, D and E.

Huge clouds of gas and dust known as nebulae are found in space and are made up of heavier elements in the form of dust particles as well as ionized gases like hydrogen and helium.

Because the gases and dust within them have the potential to collapse under the influence of gravity and form new celestial objects, they are frequently the birthplace of stars and planetary systems. They are rich in hydrogen and helium. They have a strong gravitational pull and are hot and dense.

Hence, the correct options are A, D and E.

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Select all the correct answers. what are three reasons why nebulae contribute more to stellar formation than other regions of the universe?

\(LiNO_{3}\)There are 0.075 moles of \(LiNO_{3}\) in 250 mL of a 0.30 M solution.

To determine the number of moles of \(LiNO_{3}\) in 250 mL of a 0.30 M solution, we can use the formula:

moles of solute = concentration (M) x volume (L)

First, we need to convert the volume from milliliters (mL) to liters (L):

250 mL = 0.25 L

Next, we can substitute the given values into the formula:

moles of \(LiNO_{3}\) = 0.30 M x 0.25 L

moles of \(LiNO_{3}\) = 0.075 mol

Therefore, there are 0.075 moles of \(LiNO_{3}\) in 250 mL of a 0.30 M solution.

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Although elements in grouping have similar properties, those in period have gradually shifting chemical properties.

Any compound that cannot be broken down into simpler chemicals by regular chemical processes is referred to as a chemical element or element. The building blocks from which every matter is made are called elements. a molecule that cannot be chemically divided into simpler substances.

About 96% of a human body is made up of just just four substances: carbon (C), oxygenation (O), hydrogen (H), and nitrogen (N). There are 25 identified elements that are necessary for life. According to the required quantity, this graphic divides the important components into three major groupings.

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Answer:

It's B

Explanation:

Trust me, I have 50 million power

The empirical formula of the compound is Na2S2O3.

To determine the empirical formula of a compound, we need to find the simplest whole-number ratio of the elements present in the compound.

We can do this by assuming a 100 g sample of the compound and calculating the number of moles for each element.

Given the percentages by mass, we can assume we have 100 g of the compound. This gives us:

Mass of Na = 29 g

Mass of S = 41 g

Mass of O = 30 g

Next, we convert the masses to moles using the molar masses of the elements:

Molar mass of Na = 22.99 g/mol

Molar mass of S = 32.07 g/mol

Molar mass of O = 16.00 g/mol

Moles of Na = 29 g / 22.99 g/mol ≈ 1.26 mol

Moles of S = 41 g / 32.07 g/mol ≈ 1.28 mol

Moles of O = 30 g / 16.00 g/mol ≈ 1.88 mol

Now, we need to find the ratio of the moles of each element by dividing them by the smallest number of moles, which is approximately 1.26 mol:

Moles of Na / Smallest Moles ≈ 1.26 mol / 1.26 mol ≈ 1

Moles of S / Smallest Moles ≈ 1.28 mol / 1.26 mol ≈ 1

Moles of O / Smallest Moles ≈ 1.88 mol / 1.26 mol ≈ 1.49

Rounded to the nearest whole number, we have approximately a 1:1:1.5 ratio. To obtain whole numbers, we can multiply all the ratios by 2:

Na2S2O3

Therefore, the empirical formula of the compound is Na2S2O3.

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In order to produce a nucleotide, the combinations 11, 12, and 13 may be combined.

The basic unit of DNA and RNA are nucleotides. Genetic material is present in them. Since many biological reactions involving enzymes require coenzymes, nucleotides serve in this capacity. ATP serves as the body's energy storage system.

A phosphodiester bond forms when the 5' phosphate group of one nucleotide and the 3'-OH group of another nucleotide come together during the incorporation of nucleotides into DNA (see below). Phosphate-sugar-phosphate-sugar-phosphate forms the "backbone" of each DNA strand in this way.

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Answer:

Option C - 1 mole

a) no of moles of solute = 4.1×0.05

moles = O.205

so the mass of of sodium chloride present is 0.205×58.44

Mass of NaCl = 11.98 g

b) no of moles of solute = 1.8×0.01= 0.018

so the mass of of sodium chloride present is 0.018×58.44

Mass of NaCl = 1.05g

C) number of moles of solute is 1 mole

mass of solute is =58.44g

d) mass =9.35g

So the conclusion is that 1 mole is the correct answer!!!!