Sodium chloride reacts with phosphoric acid to form sodium phosphate and hydrochloric acid.
Answer in a balanced chemical equation.

Explanation:

To find the freezing point of the solution, we can use the freezing point depression equation:

ΔT = Kᵣ x m

Where ΔT is the change in freezing point, Kᵣ is the freezing point depression constant of benzene, and m is the molality of the solution.

Substituting the values from the problem, we get:

ΔT = 5.12 °C/m x 2.8 m

ΔT = 14.34 °C

Since ΔT = Tᵢ - T, where Tᵢ is the freezing point of the solvent (benzene) and T is the freezing point of the solution, we can rearrange the equation to solve for T:

T = Tᵢ - ΔT

T = 5.50 °C - 14.34 °C

T = -8.84 °C

Therefore, the freezing point of the solution is -8.84 °C.

Answer:The freezing point of the solution is -8.84 °C.

Explanation:

Answer:

11.01

Explanation:

took the assignment on edge

Answer:

Iron is  element

Explanation:

Answer: element

Explanation: Iron is an element in the periodic table. Nowadays, itis one of the most common elements we use today. The answer is element because iron is an element. It has electrons and protons and atoms.

Hope this helps you!

Answer:

Examples of calcium channel blockers include:

Amlodipine (Norvasc)

Diltiazem (Cardizem, Tiazac, others)

Felodipine.

Isradipine.

Nicardipine.

Nifedipine (Procardia)

Nisoldipine (Sular)

Verapamil (Calan SR, Verelan)

Answer:

Lots of bad things would happen

Explanation:

People would lose their jobs

People would fall out of contact (no phones)

It would be pretty dark (no streetlights)

You would have to learn everything by book or asking someone

ect.

Answer: My life would change drastically.

Explanation:

This is because electricity is used in my everyday life . If I no longer had electricity then i would have to change my whole life and how I did things . I would have to adapt to my new environment without electricity.

Answer:

30

Explanation:

The advantages of using PBr₃ instead of the strong acid HBr for this transformation is the reaction occurs under mild conditions.The correct answer is A.

Alkyl halides can be produced from alcohols using phosphorus tribromide (PBr₃ ). The structure at carbon is inverted during the reaction with PBr₃ .

Since it prevents the potential of carbocation rearrangements, employing PBr₃ to transform alcohols into alkyl halides is much milder and more predictable than doing it with HBr or HCl.

You might think of the two steps that this reaction takes as "activation" and "substitution." By creating a bond with P (O-P bonds are highly strong) and displacing Br from P during the "activation" process (notice that this is effectively nucleophilic substitution at phosphorus), the alcohol is transformed into a suitable leaving group.

After being "activated," or changed into a suitable leaving group, oxygen can now participate in a substitution process at carbon.

By using a backside attack (SN2) to attack carbon, the bromide ion that was displaced from phosphorus breaks down carbon and forms C-Br, leaving behind a new alkyl bromide with an inverted structure and the Br₂P-OH leaving group.

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if your serious about this question then it is 5

A certain substance X has the normal freezing point of -10.1 °C and the molal freezing point depression constant Kf = 5.32 °C.kg. mol⁻¹.  The freezing point of a solution is - 15.4 °C.

The Molal freezing point depression constant = 5.32 °C kg mol⁻¹

The Mass of urea (solute) = 29.82 g

The Mass of solvent = 500 g  = 0.500 kg

The Molar mass of urea = 60.06 g/mole

The expression is as follows :

ΔT = i k m

T - Ts = i k × ( mass of urea / molar mass of urea × mass of solvent )

Where,

Ts = freezing point of solution

T = freezing point of solvent =  -10.1  °C

i = 1 , Van't Hoff factor

k = freezing point constant = 5.32 °C kg mol⁻¹

T - Ts = i k × ( mass of urea / molar mass of urea × mass of solvent )

- 10.1 - Ts = 1 × 5.32 ( 29.82 / 60.06 × 0.500)

Ts = - 15.4 °C

This question is incomplete, the complete is :

A certain substance X has a normal freezing point of -10.1  °C and a molal freezing point depression constant Kf = 5.32 °C.kg. mol⁻¹. Calculate the freezing point of a solution made of 29.82 g of urea ((NH₂)₂CO) dissolved in 500 g .

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Answer:

energy which a body possesses by virtue of being in motion.

Explanation:

ANSWER

EXPLANATION

Given that

The original mass of the sample is 160 grams

The undecayed mass of the sample is 120 grams

Time is 8 days

Follow the steps below to find the half-life

Write the formula for calculating the half-life of a sample

Substitute the given data into the formula

Most elements' names end in the suffix -ium this practice started around the year 1800, with many elements discovered before that having a more common name however, some elements are more recently discovered and don't end in -ium because element name start with the latin name and then it give suffix to the element

The ium in helium can be thought of carrying the meaning 'derived from' with the hel part representing greek helios means sun it having being inferred that helium was present in sun atmosphere and the ium suffix is a latin suffix which forms abstract nouns, thus it is used to form chemical elements name from its naming origin

There are 81 elements that end in the suffix ium or um which is derived from the latin and it is denoted a metallic substances

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                                                                               ··                               ··  

The balanced equation was found to be Na· + ·Cl : ---------> Na + (: cl : )-

                                                                               ..                               ..          

Define ionic bond dot diagram ?

Group 8 elements, generally known as noble gases, are noted for their inertness. They hardly never react with other elements, such as water, oxygen, or metals. This is due to the fact that they all have a complete outer shell of electrons. This is the most stable electron configuration possible for an atom.

Other elements, on the other hand, do not have this stable electron configuration. Instead, in order to obtain that ideal arrangement, they must acquire, lose, or share electrons. Ionic bonding is one method for doing this.

the answer for the ionic bond dot diagram for the Nacl was found to be.

           ··                              ··

Na· + ·Cl : ---------> Na + (: cl : )-

           ..                              ..

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Nanoscience is a branch of science that focuses on the study of phenomena at the nanoscale, typically between 1 and 100 nanometers. This field encompasses a wide range of scientific disciplines, including physics, chemistry, biology, and engineering. The study of nanoscience involves investigating the unique properties and behaviors that occur at the nanoscale, which can differ significantly from those at larger scales.

Nanoscience is not limited to the study of single atoms or electrons, although these are certainly important areas of investigation within the field. Rather, it is a more broad and interdisciplinary approach to exploring the properties and behavior of matter at very small scales. For example, nanoscience may involve studying how the structure and composition of materials change at the nanoscale, or how the interactions between nanoparticles can lead to new and interesting phenomena.

The study of nanoscience has important implications for a wide range of fields, including medicine, electronics, and energy. By better understanding the unique properties of materials and systems at the nanoscale, researchers can develop new technologies and applications that can revolutionize our world.

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c. n3o5: tri nitrogen pentoxide is incorrect because the correct formula should be N2O5, representing two nitrogen atoms and five oxygen atoms in the compound.

The correct formula for trinitrogen pentoxide should be N2O5, not N3O5. Trinitrogen pentoxide consists of two nitrogen atoms (N2) and five oxygen atoms (O5). The prefix "tri-" indicates the presence of three nitrogen atoms. Therefore, the formula N2O5 correctly represents tri-nitrogen pentoxide.

Option c states N3O5 as the formula for tri-nitrogen pentoxide, which is incorrect because it suggests the presence of three nitrogen atoms and five oxygen atoms. The formula should have two nitrogen atoms and five oxygen atoms, as represented by N2O5.

The other formula/name pairs (a. MnCO3, b. MgSO4, d. BaCl2, and e. Fe2S3) are correct and match the correct names of the respective compounds (manganese(ii) carbonate, magnesium sulfate, barium chloride, and iron(ii) sulfide).

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The incorrect formula/name pair is Fe2S3: Iron(II) Sulphide. According to the formula Fe2S3, the correct name should be Iron(III) Sulphide.

The question is asking to identify the incorrect formula/name pair among the given options. The pairs are: (a) MnCO3: Manganese(II) Carbonate, (b) MgSO4: Magnesium Sulfate, (c) N3O5: Trinitrogen Pentoxide, (d) BaCl2: Barium Chloride, and (e) Fe2S3: Iron(II) Sulphide.

Using the rules of naming chemical compounds, the incorrect pair is (e) Fe2S3: Iron(II) Sulphide. The Roman numeral (II) in 'Iron(II)' indicates the oxidation number of Iron. According to the given formula, Fe2S3, there are 2 atoms of Iron and 3 atoms of Sulfur. Hence, the correct name should be Iron(III) Sulfide, not Iron(II) Sulfide. All the other pairs are correctly named.

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Nitrogens are ranked in decreasing order of basicity as follows: nitrogen 19 > nitrogen 13 > nitrogen 7.

To rank the nitrogens in order of basicity, we need to consider their electronic environment and ability to accept protons (H+).

The basicity of nitrogen increases with the availability of lone pair electrons. In this case, nitrogen 19 is most basic because it is attached to an electron-withdrawing group (a carbonyl group) that reduces the electron density on the nitrogen atom, making it more willing to accept a proton.

Nitrogen 13 is next in line because it has two alkyl groups attached, which provides some electron density and increases its basicity. Finally, nitrogen 7 is the least basic because it is part of an aromatic ring, which delocalizes the electrons and makes it less available to accept protons.

Therefore, the ranking of nitrogens in order of basicity is:
Nitrogen 19 > Nitrogen 13 > Nitrogen 7

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The ranking of the nitrogens in order of basicity would be: Nitrogen 7 < Nitrogen 13 < Nitrogen 19.

To rank the nitrogens in order of basicity, we need to determine which nitrogen atom is most likely to donate its lone pair of electrons to accept a proton. This is generally determined by the electron density surrounding the nitrogen atom, with more electron-dense nitrogen atoms being more basic.

In this case, without knowing the specific compound, it's difficult to make a definitive determination. However, we can make some general assumptions based on the position of the nitrogen atoms within the molecule.
Nitrogen 7 is likely the least basic of the three, as it is closer to the center of the molecule and may have less electron density surrounding it.

Nitrogen 19, on the other hand, is likely the most basic, as it is located on the edge of the molecule and may have more electron density surrounding it.
Nitrogen 13 falls somewhere in between, as it is not as central as nitrogen 7 but not as peripheral as nitrogen 19.

Therefore, the ranking of the nitrogens in order of basicity would be: Nitrogen 7 < Nitrogen 13 < Nitrogen 19.

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Answer:

C

Explanation:

C) an atom with an atomic number of 18

The heat of solution (qsoln) for the neutralization reaction between NH3 and HCl depends on the specific conditions of the reaction, such as the concentrations of NH3 and HCl, the temperature, and the pressure.

In general, the neutralization of NH3 and HCl is an exothermic reaction, meaning it releases heat, and the value of qsoln is negative. The exact value of qsoln can be calculated using the heat of formation of NH3 and HCl and the enthalpy change of the reaction. However, without specific information about the reaction conditions, an accurate value for qsoln cannot be provided.

To find the heat of solution (qsoln) for the neutralization reaction between NH3 and HCl, follow these steps:

Step 1: Write the balanced chemical equation for the reaction:
NH3(aq) + HCl(aq) → NH4Cl(aq)

Step 2: Determine the molar enthalpy of the reaction (ΔH):
You can look up the molar enthalpy of the reaction in a reference table or calculate it using bond dissociation energies. For this reaction, the molar enthalpy is typically reported as -51.6 kJ/mol.

Step 3: Calculate the heat of solution (qsoln):
qsoln = n * ΔH

Where n represents the number of moles of NH3 and HCl reacting, and ΔH is the molar enthalpy of the reaction. To calculate n, you will need to know the volume and concentration of the NH3 and HCl solutions used in the reaction.

For example, if you have 0.1 moles of NH3 reacting with 0.1 moles of HCl, the calculation would be:
qsoln = 0.1 * (-51.6 kJ/mol) = -5.16 kJ

In this example, the heat of solution for the neutralization reaction between NH3 and HCl is -5.16 kJ.

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A reaction occurs as a result of the combination of reactants and products.

We have to learn that a reaction occurs as a result of the combination of reactants and products. We know that the products formed may often be quite different from the reactants that were combined to produce them.

Having said so, let us look at the equations one after the other;

Mg + 2HCl ------> MgCl2 + H2. There is the evolution of a colorless and odorless gas that gives a pop sound with glowing splint.

CuCl2 + HCl ----> There is no observation

2NaHCO3 + H2SO4 --> Na2SO4 + 2H2O + 2CO2 - There is evolution of a gas that turns lime water milky

CuO + H2SO4 → CuSO4 + H2O - The solution turns blue and there is no effect both on lime water and glowing splint.

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Answer:

Starting from head to toe: A human brain is like a computer's central processing unit (CPU). In order for both the human body and computer to perform tasks, they need a brain or CPU. The brain and CPU communicate with other parts of the computer.Jan 27, 2011

Explanation:

Answer:

thank you :')

Explanation:

Answer:

Aw and thank you!

Explanation:

Even though you said I am loved, you are loved very much too! Don't you ever forget that! No matter what happens and how you feel remember that you are loved and mean so much to people. What you said to me means a lot to me! Thank you! YOU ARE LOVED!!

Answer:

The element is zirconium metal.

Explanation:

Algae blooms are most often caused by eutrophication.

Algae blooms are are dense layers of tiny green plants that occur on the surface of lakes and other bodies of water when there is an overabundance of nutrients (primarily phosphorus) on which algae depend.

Algae species tend to proliferate in growth (bloom) in the presence of abundance nutrients. This abundance of nutrients is as a result of a process called eutrophication.

Eutrophication is the ecosystem's response to the addition of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.

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A is true.

B is true.

C is true.

So all of the above. D.

Hope this helps!

Answer:

Explanation:

d:coal!

hope i helped :)))

Ionic bond is said to be categoised under strong bond. The compounds which can result in the formation of above bond is mostly salts.      

Ionic bond is a type of bond in which the electrons of various compounds participate to lead the formation of ionic bond. It accomplishes the complete transfer of the particular electron. It usually shows interactions that comes under the strong bond category.

Ionic bond, usually occurs between various compounds which lie in the periodic table. They do follow the complete transfer so whenever the bond will break, it will result in generation of ions.

Ions can be in two forms, firstly the ion that is said to positive(cation) and secondly the ion that is said to be negative(anion). The compounds used in this bond creation is sodium, magnesium any many more.  

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The complete question is

What do you understand by ionic bond. Classify which of the following compound contains an ionic bond?

Nuclear fusion is the process of combining lighter-weight nuclei to make heavier nuclei.

Thus, the correct answer is the process of combining lighter-weight nuclei to make heavier nuclei (D).

Nucleаr fusion is а reаction in which two or more аtomic nuclei аre combined to form one or more different аtomic nuclei аnd subаtomic pаrticles (neutrons or protons). The difference in mаss between the reаctаnts аnd products is mаnifested аs either the releаse or аbsorption of energy. This difference in mаss аrises due to the difference in nucleаr binding energy between the аtomic nuclei before аnd аfter the reаction.

Nucleаr fusion is the process thаt powers аctive or mаin-sequence stаrs аnd other high-mаgnitude stаrs, where lаrge аmounts of energy аre releаsed. Nuclear fusion has the potential to be a source of clean and sustainable energy, but it is currently difficult to achieve and control on Earth.

Your options aren't well arranged, but most probably your options were

A. the combination of exotic nuclei of very different types of heavy elements

B. the process of splitting nuclei to produce energy an explosion caused by putting together

C. two volatile chemicals a process that only occurs in nuclear bombs

D. the process of combining lighter weight nuclei to make heavier nuclei

Thus, the correct option is D.

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Answer:

so here is the answer (What kind of a question my freind

Explanation:

Graham crackers are a whole wheat sweet cookie used in baking and making S'mores. Did you know that Graham crackers are called that because they're made from Graham Flour? It's a flour similar to conventional whole wheat flour in that both are made from the whole grain, but Graham flour is ground more coarsely.

Answer:b

Explanation:

i just know

The arrow in the photo represents a force. The ground applying a force on  is equal but opposite to the one shown. Therefore, option B is correct.

A force is an influence that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Force is used to describe a body's tendency to modify or change its state as a result of an external cause. When force is applied, the body can also alter its size, shape, and direction.

In terms of a physical action or movement, force is essentially a push or pull that acts on an item or energy. When two things come into contact, it occurs. Additionally, a body is in motion when it is moving.

Thus, option B is correct.

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