now consider this plot, which shows the boiling points of all the common compounds between p-block elements and hydrogen. what are the formulas of the two other compounds (besides water) that experience hydrogen bonding?

Answer:

CuS + 2AgNO3(aq) > Cu(NO3)2(aq) + Ag2S

Explanation:

The reaction is CuS + AgNO3(aq) > Cu(NO3)2(aq) + Ag2S

so the balanced reaction is CuS + 2AgNO3(aq) > Cu(NO3)2(aq) + Ag2S

Cu = 1

S = 1

Ag = 2

NO3 = 2

A valence issue is an issue  on which most voters and candidates share the same position.

A valence issue is one on which the majority of voters are in agreement. Voters use valence issues to assess a political party's effectiveness in achieving a particular goal or quality because valence issues are symbolic of such things.

The valence issue notion is a technique of speculating on the reasons why voters support opposing parties in a general election. The theory was developed in response to Donald Stokes' critique of theories of voting behavior, which Stokes considered as being excessively limited to notions of a voter's reasoning and ideological impulses, as with spatial models of party competition. Since Stokes noted that voters occasionally were not constrained by ideology or self-interest during his assessment of past U.S. elections.

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Ice melting is an example of an endothermic reaction because it absorbs heat.

When ice melts spontaneously, there is a physical shift. But if you employ a reactant, like salt, to hasten the process, it becomes a chemical reaction. While exothermic reactions emit heat, endothermic reactions absorb it. A example endothermic process is ice melting.

Since there is no chemical change occurring to the ice as it melts, ice melting is not a chemical reaction. The water molecules remain unchanged and continue to be water molecules.

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Answer:

Binary Ionic Compounds Containing a Metal and a Nonmetal. A binary compound is a compound formed from two different elements. ...

Ionic Compounds Containing a Metal and a Polyatomic Ion. Metals combine with polyatomic ions to give ionic compounds. ...

Acids and Acid Salts. ...

Binary Compounds Between Two Nonmetals.

Explanation:

Enzyme is the protein that catalyzes a biological chemical reaction. Pathways of enzymes called metabolic pathways that convert a substrate molecule through a series of metabolic intermediate.

The pathways of enzyme called metabolic pathway is a series of interconnected biochemical reactions that convert a substrate molecule or molecules through a series of metabolic intermediates yielding a final product or products. Chemical reactions in metabolic pathways rarely take place spontaneously. Each reaction step is catalyzed by a protein called an enzyme. Enzymes are important for catalyzing all types of biological reactions. Those that require energy as well as those that release energy. This involves two pathways. Anabolic pathways and catabolic pathways. Anabolic pathways synthesize molecules and require energy. Catabolic pathways break down molecules and produce energy.

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The power output of the circuit is the product of the voltage and current passing through the circuit. Hence the power of the speaker carrying a current of 6.4 A when connected to 120 V is 768 W.

Power is the rate of work done. Its unit is Watt. Power of a device is directly proportional to the current, voltage as well as to the resistance.

The expression relating the power, current and resistance is:

P = I² R

According to Ohm's law, V = I R

Thus, P = I V.

Given that, voltage V = 120 V

current I  = 6.4 A.

Thus power  P = 120 V × 6.4 A = 768 W.

Therefore, the power of the speaker carrying a current of 6.4 A when it is connected to 120 V source is 768 Watt.

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The moles of MgO produced in the reaction of magnesium and oxygen are 2 moles.

Magnesium oxide is created during the burning of magnesium metal when it combines with airborne oxygen. A compound is a substance made up of atoms from various elements that are chemically linked to one another. This molecule is created by the chemical interaction between oxygen and magnesium.

In the balanced chemical reaction of magnesium and oxygen is                2 Mg + O₂ ⇒ 2 MgO.

Since values are not mentioned in the question, so we are considering 2 moles of magnesium and 1 mole of oxygen.

In terms of magnesium

2 moles of  Mg ⇒ 2 moles of MgO

In terms of oxygen

1 mole of O₂ ⇒ 2 moles of MgO

Hence, magnesium and oxygen in 2:1 moles react to form magnesium oxide.

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The claim that over-the-counter medications require a doctor's prescription is referred to as being untrue.

What Does Medicine Mean?

This is also known as a medicine, and people use it to diagnose and treat illnesses and other forms of medical ailments. Antimalarials, antibiotics, and other examples all have particular uses and modes of action.

It is untrue that all over-the-counter (OTC) medications require a doctor's prescription because some OTC medications can be purchased without a doctor's prescription. These medications are referred to as OTC medications. Some analgesics and first aid supplies used immediately or during emergencies are medications that don't require a prescription.

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Answer:

If you're on plato edmentum this is the answer, if not then it's not.

Post Test: Government

Economics

Question #6

This answer is 100% correct:

Explanation:

I took the test and this is 100% it

Hope this helped!

The mass of the water of crystallization is 0.7475 g.

We know that a hydrated compound is a compound that contains in it the water of crystallization. This is the water that becomes attached to the structure of the compound that is in question.

In this case, we have that the salt that is question is a hydrate of magnesium sulfate and we have.

Mass of the hydrated salt =  2.5000 g

Mass of the anhydrous salt =  1.7525 g

Mass of water present = 2.5000 g - 1.7525 g

= 0.7475 g

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Missing parts;

A  2.5000 g sample of epsom salt (maghesiun sulfate hydrate) is heated until the crystals arereduced to a dry powder. after cooling the residue was found to weigh 1.7525 g. calculate the mass of the water.

Balance the following equation:

A chemical equation is a symbolic writing of a chemical reaction. The chemical formulas of the reactants are written to the left of the equation and the chemical formulas of the products are written to the right

In basic solution:

In acidic solution:

in neutral solution:

It doesn't involve any proton or hydroxide ion in the reaction. There is no 2S₂O₃²⁻ ion and S₄O₆²⁻, the correct form is S₂O₃²⁻ and S₄O₆²⁻. This reaction comes in the third series of the Winkler method of determining Dissolved Oxygen.

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The properties of starch are that they are colorless and tasteless in nature and are the source of carbohydrates in our diet.

Starch are insoluble in cold water, alcohol, and other solvents.

Starch is composed of long chains of sugar molecules which are linked together linked together forming bonds and linkages. The most basic type of starch is amylose it is  a linear polymer and another example is  amylopectin which is a branching polymer.

Starch is the storage part in a plant where they store the excess energy in the form of glucose. This glucose is an important part of human diet and it provides energy as taken in the form of sugar.

Amylase is a starch-breaking enzyme found in saliva and the pancreas the first step in the digestion process is the breaking down of starch by enzymes.

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Geothermal energy is the use of earth heat to produce electrical energy through geothermal power plants. With the corrosive chemicals of geothermal energy come some drawbacks.

The contamination of the air is one such issue. Heavy metals like sulphur, radon salts, and harmful gases that harm the ecosystem are brought up by steam from the earth. Hazardous sludge is created throughout the energy generation process, contaminating the soil and water. Heavy metals present cause pipes to corrode. Construction of geothermal facilities must be done with the utmost care to minimise influence on the local environment. In the first possibility, the chemical's hue is a physical characteristic of a substance. In the presence or absence of a specific chemical, a substance's hue serves as physical identification. Consider sulphur .

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In the picture representation of electromagnetic waves,

a) Lowest frequency - C

b) Second Highest energy - A

c) Highest energy - B

d) Shortest wavelength - B

Wavelength can be defined as the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire. In wireless systems, this length is usually mentioned in meters (m), centimeters (cm), or millimeters (mm).

If the wavelength of electromagnetic waves is low, the frequency of a wave is also low and the energy is low.

If the wavelength of electromagnetic waves is short, the frequency of a wave is also high and the energy is high.

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The equilibrium constant expression for this reaction is:

K = [C]2[D] / [A]4[B]2

We can rearrange this expression to solve for [B]:

[B] = √([A]4[C]2[D] / K)

Plugging in the given values, we get:

[B] = √((2.60 M)4(2.70 M)2(3.10 M) / 0.0964)

= √(6.76 M)

= 0.26 M

The initial concentration of B is 2.60 M, so the change in concentration of B is 2.60 M - 0.26 M = 2.34 M.

Since the reaction takes place in a 5.00-liter container, the number of moles of B that were removed is 2.34 M * 5.00 L = 11.7 moles.

Therefore, 11.7 moles of B were removed.

Answer:

The element that only has 3 electrons is Lithium

Here is an example

Explanation:

From n = 5 , the electron can drop to n =

4, 3, 2, 1. Thus, there will be 4

possibilities

Now, the electron that dropped to n = 4 can drop to n =3,2,1 This will give 3 possibilities

The electron at n = 3 can drop to n =2,1 This gives 2 possibilities

Finally, the electron at n = 2 can drop to n = 1 . This gives 1 possibility

Thus in total the number of ways in which the electron can de-excite is :

4 + 3 + 2 + 1 = 10

10 different wavelengths of light can be emitted as the electron loses energy

from n = 5 level

The purpose of the absorption and radiation by land and water lab is to analyze the earth's surface.

The Land and Water Absorption and Emission Laboratory evaluate how different surface materials on Earth absorb heat, and how the angle of separation affects how the planet's surface heats up. Designed to show you what to do. It took me about an hour to complete the lab. Earth's surface absorbs much more solar radiation than water. This is because most land surfaces are darker than water. This of course means that it absorbs more solar radiation and heat. Water reflects most of the solar radiation that reaches its surface back to the atmosphere. , the portion of the Earth's surface covered in ice and snow that affects how much of the Sun's solar radiation is absorbed, warmed or reflected by the planet.

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When a carbon atom bonds with one s-orbital and two p orbitals, it becomes sp2 hybridised. Between the three atoms, two single bonds and one double bond are formed. The hybrid orbitals are arranged in a triangle with bonds at 120° angles.

Four sp3 orbitals are created when the 2s and all three of the 2p orbitals of carbon combine. Through an overlap of the sp3 and s orbitals, these orbitals subsequently form a link with four hydrogen atoms to form methane.

Carbon consists of six electrons. In the 1s orbital, just outside the nucleus, there will be two of them. The following two will enter the orbital phase 2s. The rest will be split into two distinct 2p orbitals.

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False; Chromium can help you build bigger muscles and stay lean when you are lifting weights.

With an atomic number of 24 and the chemical symbol Cr, chromium is a chemical element. It is the first part of group 6. It is a steely-gray, strong, brittle transition metal that is shiny. [4]

The great corrosion resistance and hardness of chromium metal make it valuable. It was a big development in the production of steel when it was realised that steel could be converted into stainless steel, which has a high resistance to rust and discolouration. 85% of commercial use is made up of chrome plating (chromium electroplating) and stainless steel combined. Chromium is highly valued as a metal because it can be polished to a high degree while maintaining its brilliance. Polished chrome reflects about 70% of the visible spectrum and over 90% of infrared radiation.

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That creates a Na concentration gradient in the proximal convoluted tubule is Na⁺ / K⁺ pump.

The proximal convoluted tubule is the site of the reabsorption of the electrolytes , the electrolytes examples are sodium , potassium, calcium and the chloride.  the proximal tubule is the one of the major element of the kidney and is responsible for the reabsorption. That creates a Na concentration gradient in the proximal convoluted tubule is Na⁺ / K⁺ pump.

The Na⁺ / K⁺ pump is the sodium potassium pump is the active transport. The sodium / potassium pump helps to maintains the higher concentration of the sodium ( Na ) extracellularly and potassium level of intracellularly.

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The electron-poor groups are the ones that make up the majority of the electrons in the material.

This is why it is critical that you divide compounds by the number of electrons they contain. In other words, if you have a compound with two electrons, you want to look at the two-electron group, not the three-electron group. So, if you have a compound with two electrons, you should look at where the two electrons are rather than where they were. Start with the group containing the two electrons and work your way down. Essentially, we want to divide compounds into three groups, three electron groups. The first group has a low electron density, the second has a high electron density, and the third has no electrons. The first group is the easiest to distinguish, but you can see that the first group contains the most electron-rich compounds. The second group is more difficult to distinguish. Because the compounds in the group will have two electrons, it is electron rich. The third group is the most difficult to enter, and it's clear that the second group contains the most electron-free compounds.

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Answer:

59.46 g

Explanation:

To answer this question, the molecular weight of ammonium sulfate must be computed.  To accomplish this, the weights of the individual elements must be noted.
N=14.01[tex]\frac{g}{mol}[/tex]

H=1.01[tex]\frac{g}{mol}[/tex]

S=32.07[tex]\frac{g}{mol}[/tex]

O=16.00[tex]\frac{g}{mol}[/tex]

To compute the molecular weight:

[tex]2[14.01\frac{g}{mol}+4(1.01\frac{g}{mol})]+32.07\frac{g}{mol}+4(16.00\frac{g}{mol})=132.14\frac{g}{mol}[/tex]

To calculate the mass:

[tex]0.45 mol(\frac{132.14g}{1mol})=59.463g[/tex]

Helium is the noble gas out of the following options given.

The amount of protons an atom contains determines its atomic number.

The atomic number of a neutral atom with 30 protons and 34 neutrons is 30.

An isotope of sodium with a mass value of 25 has 11 protons.

Gases that are noble or inert. Helium, neon, argon, krypton, xenon, and radon are the noble gases, or inert gases, that make up group 8A (or VIII A) of the periodic table. The name of these elements refers to how little they react with other elements or compounds.

The atomic number is determined by the number of protons, which is always equal to the number of electrons in a neutral atom.

Sodium has an atomic number of 11. Since the atomic number in this instance is 11, the number of protons is likewise 11. The number of protons is equal to the atomic number.

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Answer:

ionic

Explanation:

compounds that are ionic are formed as a result pf a transferring of electrons that creates ions; which exert an electrostatic force upon each other.

Because both treatments are non-electrolytes and produce this very same proportion of solute particles, the freezing point elevation will be identical in both solutions.

A substance is referred to as a nonelectrolyte if it doesn't conduct electricity in either the molten or watery form. Many molecules, including ethanol and sugar, include nonelectrolytes. These substances do not release ions when they mix with water.

A material is a nonelectrolyte if it does not ionize at all in water. Explanations: The majority of carbon compounds lack electrolytes. The majority of contribution of natural are fats, carbohydrates, and alcohols.

⧍T ∝ molality,

molality=mole solute/weight solvent

weight of solvent = density *volume

=1000*1 kg

= ⧍T ∝ moles

moles =given mass(m) / molecular mass(M)

=0.1/M

M of sugar(sucrose)=342

M of glucose=180

⧍T∝1/M,

= ⧍T(sugar) /⧍T(glucose)

= [1/M(sugar)] / [1/M(glucose)]

= 180/342<1

therefore,

⧍T(sugar)/⧍T(glucose)<1

⧍T(sugar)<⧍T(glucose)

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The solution to the preceding equation is: 6C6H6 + 6O2 + 6CO2 + 6H2O = 7C6H12O6 + 3O2 + -18H2O

Negative coefficients indicate that the matching chemicals should be placed on the reaction's opposing side.

Water, Dioxygen, and Glucose are equal to Benzene, Dioxygen, Carbon Dioxide, and Water.

Response Type

Combustion

Redox (Oxidation-Reduction) (Oxidation-Reduction) It's possible that the reaction C6H12O6 + O2 + H2O = C6H6 + O2 + CO2 + H2O is a redox one.

C6H12O6 Glucose, O2 Dioxygen

H2O, or water

C6H6 Benzene

CO2, or carbon dioxide

A simple sugar called glucose is a key source of energy for living things and is found in many different types of carbohydrates.

Combustion: A fuel and an oxidant, often atmospheric oxygen, engage in a high-temperature exothermic (heat-releasing) redox (oxygen-adding) chemical process that results in the production of oxidized, frequently gaseous products in a mixture known as smoke.

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The numerical value of x is 4 for the elements belonging to group 16.

The outermost shell or orbital of an atom is called its valence shell. The electrons in these shells take part in bonding with other atoms. It may be fully filled or half-filled. The group 16 elements have the general electronic configuration ns2 npx. The general valence electron configuration of group 16 elements is ns2 np4. Group 16 elements have six electrons in their valence shell. Thus, the value of x=4.

The group 16 elements are oxygen (O), Sulfur (S), Selenium (Se), Tellurium (Te), Polonium (Po) etc.

Thus, the valence electrons will be same for the elements is ns2 np4 and therefore the numerical value of x is 4.

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