the coupling product that can accompany your product for this grignard is; group of answer choices benzene.
benzyl alcohol.
bromobenzene.
biphenyl.

The amount of fertilizer you need for 1,000 square feet depends on the type of fertilizer and the nutrient content of the fertilizer.

In order to determine how many pounds of fertilizer you need for 1,000 square feet, you will need to know the nutrient content of the fertilizer and the size of the area you want to fertilize. The most common nutrient contents are nitrogen (N), phosphorus (P), and potassium (K).

For example, if you want to apply a fertilizer with an N-P-K ratio of 10-5-5 to 1,000 square feet, you will need to calculate the pounds of fertilizer required based on the nitrogen content. If you want to apply 1 pound of nitrogen per 1,000 square feet, you will need to apply 10 pounds of the fertilizer (10% N).

If you want to apply a different fertilizer with a different nutrient content, you will need to adjust the amount of fertilizer accordingly. You can use a fertilizer calculator to determine the exact amount of fertilizer you need based on the nutrient content of the fertilizer and the size of the area you want to fertilize.

It is important to follow the instructions on the fertilizer bag or container carefully to avoid over-fertilizing or under-fertilizing your lawn or garden. Over-fertilizing can damage plants and harm the environment, while under-fertilizing can result in poor plant growth and development.

The amount of fertilizer you need for 1,000 square feet depends on the nutrient content of the fertilizer and the size of the area you want to fertilize. You can use a fertilizer calculator or follow the instructions on the fertilizer bag or container to determine the correct amount of fertilizer to apply. It is important to apply fertilizer carefully and according to the instructions to avoid damaging plants or harming the environment.

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Answer:

a flowing stream

Explanation:

.........

Answer:

Experiments with gases that first became possible at the turn of the nineteenth century led John Dalton in 1803 to propose a modern theory of the atom based on the following assumptions. 1. Matter is made up of atoms that are indivisible and indestructible.

Answer:

Hey mate....

Explanation:

This is ur answer....

1) All matter is made of atoms. Atoms are indivisible and indestructible. 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms.

Hope it helps you,

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The mole fraction of oxygen gas is 0.290

First we will calculate the total pressure by adding the partial pressure of all gases as follows:

Partial pressure of CH₄= 143 mmHg

Partial pressure of N₂= 469mmHg

Partial pressure of O= 251mmHg

Total pressure = partial pressure of CH₄+ partial pressure of N₂+ partial          pressure of O₂

Total pressure= 143+ 469+ 251

                        =863mmHg

Finally we will calculate the mole fraction of O₂ with the help of formula written below:

Mole fraction=\(\frac{partial pressure }{total pressure}\)

Mole fraction of O₂=\(\frac{251}{863}\)

Mole fraction of O₂= 0.290

Therefor answer will be 0.290

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Explanation:

A.

AgNO₃ + KCl → AgCl + KNO₃ (Already Balanced)

B.

H₂O + SO₃ → H₂SO₄ (Already balanced)

C.

2KI + Cl₂ → 2KCl + I₂

D.

2NaHCO₃ → Na₂CO₃ + H₂O + CO₂

E.

Zn + 2HCl → ZnCl₂ + H₂

F.

BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl

G.

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

H.

2Al + 3CuCl₂ → 2AlCl₃ + 3Cu

Answer:

C. solid iodine subliming into a gas

Explanation:

A physical change is a change that is reversible and can be reversed back into the original product. The atoms and molecules undergoes some rearrangement in the physical change. The process of change in the state of matters are placed under physical change. Solid iodine sublimes into purple gas on heating. The gas is then changed back to iodine crystals after being cooled. Hence, this is an example of a physical change.

Answer:

The reactants are on the left of the arrow, the products are on the right.

Explanation:

Reactants are the substances that exist before the chemical reaction takes place. When writing a chemical reaction or equation, they are found on the left of the arrow. They react to form new substances, which are known as the products. The products are found to the right of the arrow in the reaction.

QUESTION 9: The melting point of ionic compounds is high, whereas solid molecular compounds melt below 300°C. So, the correct option is "high; below."

QUESTION 10: Molecular compounds are less likely to be soluble in water compared to ionic compounds.

The melting point of ionic compounds is high, whereas solid molecular compounds melt below 300°C.

Because dispersion forces and the other van der Waals forces increase with the number of atoms, large molecules are generally less volatile, and have higher melting points than smaller ones.

Molecular compounds are less likely to be soluble in water compared to ionic compounds.

In water, the electrostatic forces of attraction between oppositely charged ions are overcome, allowing the ions to dissociate and dissolve  whereas molecular compounds can not do so.

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Answer:

36 atoms

Explanation:

The equation for the reaction is given below:

C6H12O6 + 6O2 —> 6CO2 + 6H2O

From the reaction above, the reactants include:

C6H12O6 and 6O2.

Thus, the total atom present in the reactants can be obtained as follow:

Element >>>>>>>> Atom present

Carbon (C) >>>>>> 6

Hydrogen (H) >>>> 12

Oxygen (O) >>>>>> 18

TOTAL >>>>>>>>>> 36

From the above illustration, 36 atoms are represented in the reactants.

Answer:

Carbon and hydrogen atoms in the hydrocarbon fuel react with oxygen in an exothermic reaction. carbon dioxide and water are produced

Answer:

1.20 mole

Explanation:

1 Mole of Cu reacts to form  =  1 Mole of Hg

(1.20 mol × 1 mol) ÷ 1 mol

1.20 mol of Hg

Option A is the correct answer: A negative change in entropy indicates that the system has become more ordered.

What is Entropy?

Entropy is a thermodynamic property that describes the degree of disorder or randomness in a system. It is a measure of the number of ways in which the energy of a system can be distributed among its particles. The greater the number of possible arrangements, the higher the entropy of the system.

It is denoted by the symbol S and is measured in units of joules per Kelvin (J/K).

A negative change in entropy indicates that the system has become more ordered. .If the entropy decreases, it means that the system has become more ordered or less random.

For example, when a gas condenses into a liquid, the particles become more ordered and the entropy decreases. Similarly, when a crystal forms from a solution, the molecules become more ordered and the entropy decreases. In both of these cases, the change in entropy is negative.

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The theoretical yield of the water in the reaction is 329.4 g.

We know that we can be able to obtain the theoretical yield when we look at the stoichiometry of the reaction that we have here. In this case, it is clear that would need to rely on the reaction equation and it would be our guide.

We have that;

2 moles of hydrogen would produce 2 moles of water

18.3 moles of hydrogen would also produce 18.2 moles of water.

Theoretical yield of water would now be;

18.3 * 18 g/mol

= 329.4 g

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Answer:

Universe, galaxy, solar system, star, planet, moon and asteroid.

Explanation:

You're welcome!

Answer:

Alkynes

Explanation:

Alkynes are hydrocarbons which contain carbon-carbon triple bonds. Their general formula is CnH2n-2 for molecules with one triple bond (and no rings). Alkynes undergo many of the same reactions as alkenes, but can react twice because of the presence of the two p-bonds in the triple bond.

Answer:

C. “The electrons are moving easily between the nuclei of metal atoms.”

Explanation:

i got a 100 on the quiz

Phosphorus trioxide has a low melting point because of its molecular structure and intermolecular forces.

Phosphorus trioxide (P4O6) is a covalent compound that has a low melting point of only 24 degrees Celsius.

This is due to the weak intermolecular forces between its molecules, which can be easily overcome with slight increases in temperature.

The molecular structure of P4O6 plays a big role in its low melting point. The compound exists as discrete P4O6 molecules, arranged in a tetrahedral shape.

Each molecule is held together by strong covalent bonds between its phosphorus and oxygen atoms.

However, the intermolecular forces between the molecules, which are London dispersion forces, are weak because of the non-polar nature of the molecule.

As a result, individual molecules are easily separated from each other with slight increases in temperature.

Hence, Phosphorus trioxide has a low melting point owing to its molecular structure and intermolecular forces.

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d= m/v

1.0=m/1cm^3

1.0×1cm^3=m

m=1kg/cm^3

ion-ion,  is the dominant intermolecular force that determines the solubility of the amine hydrochloride salt of ethyl 4-aminobenzoate in water.

It is standard practice to transform amines into their hydrochlorides in order to increase their water solubility, which might be advantageous for compounds used in pharmaceuticals. More than 200 hydrochlorides are listed as active components in pharmaceuticals in the European Pharmacopoeia. In comparison to free bases, these hydrochlorides might dissolve more easily in the digestive system and be absorbed into the bloodstream faster. Furthermore, many amine hydrochlorides have a longer shelf life than their corresponding free bases.

Amine hydrochlorides are latent forms of a free base, which is more reactive. In this sense, protection is granted by the production of an amine hydrochloride. The hydrochlorides of the amino acids serve as an example of this phenomenon. Shelf-stable glycine methyl ester hydrochloride is easily transformed into reactive glycine methyl ester, a substance.

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The electron group geometry of the carboxyl carbon in a carboxylate ion is tetrahedral. The hybridization state of the carbon is sp3.sp3. Therefore, the correct answer is (b) tetrahedral, sp3.

The electron group geometry and hybridization state of the carboxyl carbon in a carboxylate ion is: Trigonal planar, sp2

The concept of hybridization is defined as the process of combining two atomic orbitals to create a new type of hybridized orbitals. This intermixing typically results in the formation of hybrid orbitals with completely different energies, shapes, and so on. Hybridization is primarily carried out by atomic orbitals of the same energy level. However, both fully filled and half-filled orbitals can participate in this process if their energies are equal. The concept of hybridization is an extension of valence bond theory that helps us understand bond formation, bond energies, and bond lengths.

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Hey there !

Mass = 237 g

Volume 237 mL

Therefore:

Density = mass / Volume

D = 237 / 237

D = 1.0 g/mL

Hope this helps!

Answer:

The answer is A

Explanation:

I dont see any claim

Answer:

C

Explanation:

The answer is C as concentration is a major factor affecting the rate of reaction and it has a direct relationship with the rate of reaction.

The effect that the concentration of reactants has on the rate of a reaction is increasing the concentration increases the rate of the reaction. The correct option is C.

A reactant is a part of a reaction that is the first part of the reaction. Reactant can be more than one in the reaction. The different reactant reacts, and form a totally different product.

H2 + O2 = H2O

The hydrogen and oxygen are the reactants of the reaction.

Thus, the correct option is C. Increasing the concentration increases the rate of the reaction, as concentration plays a significant role in determining the rate of reaction and is directly related to it.

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The current would need to be applied for approximately 0.71 hours (or 42.6 minutes) to plate out 4.90 g of nickel.

To determine how long the current must be applied to plate out a certain amount of nickel, we need to use Faraday's laws of electrolysis, which relate the amount of material deposited on an electrode during electrolysis to the amount of electric charge passed through the solution.

The first step is to calculate the amount of electric charge that would be passed through the solution during the plating of 4.90 g of nickel. We can do this using the following equation:

Q = nF

where Q is the amount of electric charge (in coulombs), n is the number of moles of nickel being plated out, and F is Faraday's constant (96485 coulombs per mole of electrons).

The number of moles of nickel being plated out can be calculated from its molar mass:

molar mass of nickel = 58.69 g/mol

moles of nickel = 4.90 g / 58.69 g/mol = 0.0834 mol

Substituting into the equation above, we get:

Q = 0.0834 mol × 96485 C/mol = 8040 C

The next step is to use the current to determine the time required to pass this amount of electric charge. We can use the following equation:

Q = It

where I is the current (in amperes), t is the time (in seconds), and Q is the amount of electric charge (in coulombs).

To convert hours to seconds, we multiply by 3600:

t = Q / I = 8040 C / 3.16 A = 2544 s = 2544/3600 hours

Therefore, by calculating we can say that the current would need to be applied for approximately 0.71 hours (or 42.6 minutes) to plate out 4.90 g of nickel.

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all the elements in group 18 are Nobel gases or inert gases . all the elements such as neon , helium, argon etc. ,their outermost shell is completely filled . The noble gases have the largest ionization energies, reflecting their chemical inertness

The conditions of pressure and temperature at which two phases coexist in equilibrium are determined by the phase diagram of the substance.

The phase diagram shows the various phases of a substance at different pressures and temperatures. At the point where two phases coexist in equilibrium, the pressure and temperature are such that the chemical potentials of the two phases are equal. This is known as the phase boundary or coexistence curve. The conditions can vary depending on the substance and the pressure-temperature range being considered. For example, for water, the conditions for coexistence of ice and water are at a pressure of 1 atm and a temperature of 0°C, while the conditions for coexistence of water and steam are at a pressure of 1 atm and a temperature of 100°C.

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Answer:

The second student is right.

Explanation:

The coyote feed on not only phalaropes but many other organisms present in the environment for its survival. There are many other organisms present in the ecosystem such as mice, squirrel, cactus fruit etc. The coyote feeds on phalaropes, the phalaropes feeds on brine shrimp and the brine shrimp feeds on algae for its survival so in this way the ecosystem moves in the forward direction. The coyote feeds on phalaropes so the energy that is present in phalaropes transferred into coyote which only 10 % while the remaining is released in the atmosphere in the form of heat energy.

Answer: I don't know try your best

Explanation: