what reagent(s) would accomplish the following synthesisa) H2O/H+b) H2O/ROORc) 1.BH3-THF; 2. NaOH, H2O2, H2Od) NaOH, H2Oe) 1. Hg(OAC)2, H2O; 2), NaBH4

The infusion pump is programmed to deliver a flow rate of 166.67 ml/h.

Flow rate refers to the quantity of fluid that passes through a specific point or section of a system per unit of time. It measures how much volume of fluid, such as a liquid or gas, flows through a particular pathway or device in a given time interval.

Flow rate is typically expressed in units such as liters per hour (L/h), milliliters per minute (ml/min), or cubic meters per second (m³/s), depending on the context and the scale of the flow.

The flow rate for the LR infusion, you can use the formula:

Flow Rate (ml/h) = Volume (ml) / Time (h)

In this case, the volume is given as 1 liter, which is equivalent to 1000 ml, and the time is 6 hours.

Flow Rate = 1000 ml / 6 hours

Flow Rate = 166.67 ml/h

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Answer:

Explanation:

Good Example of a Star- The sun, Star Clusters, The North Star

Bad Examples of a Star-Earth, Galaxies, Solar Systems

Examples of stars: Sun, Stars.

Non-examples of stars: Earth, Moon, Planets.

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Answer:

See explanation

Explanation:

We all know that noble gases are quite stable. The stability of noble gases is the reason why they do not participate in chemical bonding. This stability stems from their possession of a stable duplet or octet structure.

Atoms of other elements attain this stable duplet or octet structure by chemical combination (chemical bonding).

There are two main ways that elements can bod with each other;

Answer:

- 83.33 m per second square

Explanation:

Initial velocity u = 10,000 m/s

Final Velocity v = 5,000 m/s

Time t = 1 minutes = 60 seconds

Acceleration a =?

\( \because \: a = \frac{v - u}{t} \\ \\ = \frac{5000 - 10000}{60} \\ \\ = \frac{ - 5000}{60} \\ \\ a = - 83.33 \: m {s}^{ - 2} \)

Answer:

MRCORRECT has answered the question

Explanation:

13 electrons

So... for the element of ALUMINUM, you already know that the atomic number tells you the number of electrons. That means there are 13 electrons in a aluminum atom. you can see there are two electrons in shell one, eight in shell two, and three in shell three.

7 electrons

So... for the element of NITROGEN, you already know that the atomic number tells you the number of electrons. That means there are 7 electrons in a nitrogen atom. Looking at the picture, you can see there are two electrons in shell one and five in shell two.

Answer:

physical

Explanation:

no chemical reaction occurs

Answer:

the answer is physical change :)

This problem is providing the ratio of nitrogen to oxygen by mass in nitrogen monoxide, NO, as 7.0:8.0 and asks for the same ratio but in NO₂ and N₂O₇. After doing the calculations, the results are 7.0:16.0 and 1.0:4.0 respectively.

In chemistry, one can calculate the mass ratios in chemical formulas according to the atomic mass of each atom. In such a way, one knows the mass ratio of nitrogen to oxygen in NO is 7.0:8.0 because we divide the atomic mass of nitrogen by oxygens:

\(\frac{14}{16}=\frac{7.0}{8.0} \)

Now, for chemical formulas with subscripts, one must multiply the atomic mass of the element by the subscript in the formula, which is the case of NO₂ and N₂O₇ as shown below:

\(NO_2:\frac{14}{16*2}=\frac{14}{32} =\frac{7.0}{16.0} \\ \\ N_2O_7:\frac{14*2}{16*7}=\frac{28}{112} =\frac{1.0}{4.0} \)

Therefore, the results for NO₂ and N₂O₇ are 7.0:16.0 and 1.0:4.0 respectively

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When a substance undergoes a physical change, its shape or appearance changes, but its underlying composition remains the same. In contrast, a chemical shift alters the nature of the matter and results in the formation of at least one new substance with novel features.

How can physical change occur?

A physical change is one in which a substance experiences a change in its physical characteristics. A physical change can usually be reversed. No new substance is created in this type of alteration.

                                       An alteration in the physical attributes is a physical change. Physical characteristics include things like melting, turning into a gas, changing strength or durability, changing into crystal form, changing texture, and changing shape, size, color, volume, or density.

In science, what is a chemical change?

One or more substances can be transformed into others chemically through a process known as a chemical transformation, often known as a chemical reaction. A drug combining with another substance may be necessary in this situation. It might also entail a substance disintegrating into other substances.

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Answer:

Nutrients advance through the alimentary canal to the stomach and small intestine, and waste materials continue from the small intestine to the colon (large intestine) and anus.

Explanation:

Answer:

5.17 percentage is water

Explanation:

answer from gauth math

Answer:

B

Explanation:

Chemical reactions involve electron rearrangements. Nuclear reactions involve changes to the nucleus.

Answer:

B

Explanation:

The empirical formula of chlorofluorocarbon is C₁₅H₁₈ClF₁₂₈

A possible graphic formula for Compound T is:

Cl

|

F--C--C--F

| |

H H

The empirical formula of the compound is determined as follows:

Assume that we have 100 g of Compound T, so the mass of each element in grams can be directly read from the percentages given.

Mass of C = 7 g

Mass of H = 0.66 g

Mass of Cl = 46.4 g / 35.45 g/mol = 1.31 g

Mass of F = 100 g - (7 g + 0.66 g + 1.31 g) = 90.03 g

Next, we can calculate the number of moles of each element:

moles of C = 7 g / 12.01 g/mol = 0.583 mol

moles of H = 0.66 g / 1.008 g/mol = 0.655 mol

moles of Cl = 1.31 g / 35.45 g/mol = 0.037 mol

moles of F = 90.03 g / 18.99 g/mol = 4.740 mol

To obtain the empirical formula, we need to divide the number of moles of each element by the smallest number of moles. The smallest number of moles is 0.037, which corresponds to chlorine:

moles of C = 0.583 mol / 0.037 mol = 15.7

moles of H = 0.655 mol / 0.037 mol = 17.7

moles of Cl = 0.037 mol / 0.037 mol = 1

moles of F = 4.740 mol / 0.037 mol = 128.1

Hence, the empirical formula of the compound is C15H18ClF128

To find the molecular formula, we need to determine the molecular mass of the empirical formula and divide the given molecular mass by the empirical mass to obtain the molecular formula.

The molecular mass of the empirical formula is:

15(12.01) + 18(1.008) + 35.45 + 128(18.99) = 2886.53 g/mol

The given compound has two carbon atoms per molecule, so its molecular mass is twice the molecular mass of the empirical formula:

2(2886.53 g/mol) = 5773.06 g/mol

Therefore, the molecular formula of Compound T is C30H36Cl2F256

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Answer:

when molecules loose or gain electro it get charge and when it get attached with other charge molecules the form bond

ans is loose or gain ,bond

Carbonic acid (H2CO3) is considered a weak acid, and sulfuric acid (H2SO4) is considered a strong acid.

Acids can be classified as either weak acids or strong acids based on their ability to donate protons (H+ ions) in aqueous solutions.

Carbonic acid (H2CO3) is a weak acid because it only partially dissociates in water, meaning it releases a small fraction of its protons. It forms an equilibrium with its dissociation products, bicarbonate ion (HCO3-) and hydronium ion (H3O+).

The dissociation of carbonic acid is reversible, and the equilibrium lies more towards the undissociated form.

On the other hand, sulfuric acid (H2SO4) is a strong acid as it fully dissociates in water, releasing all of its protons. It completely ionizes into sulfate ion (SO4^2-) and two hydronium ions (H3O+). The dissociation of sulfuric acid is essentially complete, and the equilibrium strongly favors the ionized form.

These differences in dissociation behavior between carbonic acid and sulfuric acid categorize them as weak and strong acids, respectively.

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Answer:

Sodium chloride

Explanation:

There are several salts in seawater, but the most abundant is ordinary table salt or sodium chloride (NaCl). Sodium chloride, like other salts, dissolves in water into its ions, so this is really a question about which ions are present in the greatest concentration. Sodium chloride dissociates into Na+ and Cl- ions.

Neon is stable noble gas having the atomic number 10 and there are 8 valence electron in the outermost shell.

Neon is a noble gas having the valence electron 8.  Valence electrons are the total number of electrons present in the outermost shell of an atom. The valence electron for neutral atom is always definite. Neon has eight valence electrons, a full octet that makes neon quite stable Noble gas. This can be confirmed via it's electronic configuration by looking at the highest energy level. The electronic configuration of Neon is, 1s2 2s2 2p6 or [He] 2s2 2p6. Here, the 2s orbital holds two valence electrons while the 2p orbital holds the other six valence electrons. so there are 8 valence electrons that is a full octet. This follow the octet rule.

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Answer:

chymotrypsin, cleaves peptide bonds selectively on the carboxylterminal side of the large hydrophobic amino acids such as tryptophan, tyrosine, phenylalanine, and methionine

Under certain conditions butane reacts with oxygen to form butanone which can be easily hydrogenated to butanol. Butene is easily made from butanol by elimination of water.

Explanation:

These are for the first too

The entropy of a gas is directly proportional to the volume it occupies and inversely proportional to its temperature. Therefore, under the given conditions, the highest entropy (S) of one mole of Ne would occur at 28°C and 30 L.

This is because at higher temperatures, the gas molecules have higher kinetic energy and move more rapidly, increasing their disorder or entropy. On the other hand, at lower volumes, the gas molecules are more confined and have less space to move around, leading to a decrease in entropy.

Therefore, the conditions of 28°C and 30 L would result in the highest entropy for one mole of Ne.

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Iodoform reaction is the process of heating a chemical with an alkaline solution of iodine to produce a yellow precipitate. This test yields no results for methyl alcohol.

An alkaline solution is one that contains a soluble base and has a pH value greater than 7. Like NaOH. Additionally, it might be a base and water mixture. Numerous industrial applications exist for alkaline solutions.

Sodium hydroxide, potassium hydroxide, magnesium hydroxide, and calcium carbonate are a few examples of alkaline solutions. There are several uses for each of these solutions in various sectors.

The bottom line is that all you have to do to create an alkaline solution for a straightforward science experiment is mix baking soda and water. Baking soda should be measured. Your solution will get more alkaline as you add more baking soda.

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Answer:

true

Explanation:

The number of moles of Helium gas that could occupy the container when the volume is increased to 500 mL is 9.05 mol.

We can use the combined gas law to solve this problem:

(P1 x V1) / (n1 x T1) = (P2 x V2) / (n2 xT2)

where;

We know that the pressure and temperature are constant, so we can simplify the equation to:

V1/n1 = V2/n2

Solving for n2, we get:

n2 = (V2n1) / V1

Plugging in the values, we get:

n2 = (500 mL * 4.00 mol) / 221 mL

n2 = 9.05 mol

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Answer:

\(1.2*10^{-2} g\)

Explanation:

\(1 mol - 6*10^{23} particles\)

\(1.6*10^{20}* \frac{1 mol}{6.02*10^{23}} = 0.00026578 mol\\\\M(CO2) = 12 + 2*32=44 \frac{g}{mol}\\\)

\(44\frac{g}{mol} *0.00026578 mol =0.012 = 1.2*10^{-2} g\)

The mass of 1.6x\(10^{20}\) molecules of carbon dioxide will be 1.2 × \(10^{-2}\) g.

A physical body's mass would be its total amount of matter. Inertia, or even the body's resistance to acceleration whenever a net force will be applied, is also measured by this term.

Calculation of mass :

Given data:

Number of molecule of carbon -dioxide = 1.6x\(10^{20}\).

It is known that , 1 mol = 6 × \(10^{23}\) particle.

Since,  1.2 × \(10^{-2}\) g × 1 mol /  6 × \(10^{23}\) = 0.00026578 mol.

M(\(CO_{2}\)) = 12 +2 × 32 = 44 g/mol

Now, convert g/mol into gram.

44 g/mol × 0.000265 mol.= 0.012 = 1.2 × \(10^{-2}\) g.

Therefore, the mass of carbon dioxide will be 1.2 × \(10^{-2}\) g.

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Answer:

C

Explanation:

1. The molecule has to have a ratio of 1 hydrogen to 1 oxygen.

2. Hydrogen = 1amu, Oxygen = 16amu. (2*2)+(16*2) = 34amu

A compound's empirical formula is H.O. If the formula mass is 34 amu, the molecular formula is HO3. Therefore, option C is correct.

A chemical formula is a method of presenting information about the chemical proportions of atoms that make up a specific chemical compound or molecule by using chemical element symbols, numbers, and, in some cases, other symbols such as parentheses, dashes, brackets, commas, and plus and minus signs.

Molecular formulas indicate the number of atoms of each element in a compound, whereas empirical formulas indicate the simplest or most reduced ratio of elements in a compound. If the molecular formula of a compound cannot be reduced any further, the empirical formula is the same as the molecular formula.

A chemical compound's empirical formula is the simplest whole number ratio of atoms present in the compound.

The ratio of molecule is 1 hydrogen to 1 oxygen.

Hydrogen = 1amu,

Oxygen = 16amu.

( 2*2 ) + ( 16*2 ) = 34 amu

Thus, option C is correct.

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The moles would be 12 moles, 4 moles and 11.34 moles

When hydrogen gas (H2) reacts with oxygen gas (O2) to produce water (H2O), the balanced chemical equation is:

2H2 + O2 -> 2H2O

So,

For every 6 moles of H2, 12 moles of H2O will be produced

For every 2 moles of H2, 4 moles of H2O will be produced

For every 5.67 moles of H2, 11.34 moles of H2O will be produced.

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Answer:

a tendency to do nothing or to remain unchanged.

Explanation:

The missing product in a chemical reaction can be due to various reasons such as incomplete reaction, loss of product during isolation, errors in measurements, impurities in reactants or products, and side reactions.

Percent yield is a measure of the efficiency of a chemical reaction. It compares the actual yield of a reaction to the theoretical yield that could be obtained if the reaction went to completion. A percent yield of 90% means that 90% of the expected amount of product was obtained. The remaining 10% is the "missing" product.

The missing product can be due to several reasons. One possibility is that the reaction was incomplete, meaning that not all of the reactants were converted to products. This could happen if the reaction conditions were not optimal, such as if the temperature or pressure was not high enough or if the reaction time was too short.

Another possibility is that some of the product was lost during isolation, such as if it was stuck to the reaction vessel or if it evaporated. Errors in measurements can also contribute to the missing product, such as if the reactants were not accurately weighed or measured. Impurities in the reactants or products can interfere with the reaction, leading to a lower yield.

Finally, side reactions can also occur, where the reactants form other products instead of the desired product. This can happen if the reactants are not pure or if the reaction conditions are not optimal. Overall, identifying the reason for the missing product requires careful analysis of the reaction conditions and the experimental procedure.

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Answer:

9.61 x 10^2 g SO2

Explanation:

Ur welcome

To rank the following compounds in order of increasing reactivity in electrophilic aromatic substitution, we need to consider the factors that influence reactivity. Electrophilic aromatic substitution is a reaction where an electrophile replaces a hydrogen atom on an aromatic ring.

Electron-donating groups (+M effect): These groups increase the electron density on the ring and make it more nucleophilic, enhancing its reactivity. Examples of electron-donating groups are alkyl groups (e.g., methyl, ethyl), amino groups (-NH2), hydroxyl groups (-OH), and methoxy groups (-OCH3).

Electron-withdrawing groups (-M effect): These groups decrease the electron density on the ring and make it less nucleophilic, reducing its reactivity. Examples of electron-withdrawing groups are nitro groups (-NO2), carbonyl groups (-C=O), and halogens (-F, -Cl, -Br, -I).

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