Why does water shield the environment from temperature extremes?

Answer:

The wet bulb temperature if the dry bulb is 26 °C and the relative humidity is 77% is 16°C.

Relative Humidity (RH) is a ratio of the quantity of atmospheric moisture that is actually present to the amount that would be present if the air were saturated, expressed in percent.

In relation to the maximum amount of water vapor that the air can hold at a specific temperature. A value of 50% relative humidity, for instance, indicates that there is only 50% as much water vapor present as there would be if the air were saturated at that temperature.

Td = T - ( 100 - RH ) ÷ 5.)

where, Td is dew point temperature, T is observed temperature, and RH is relative humidity.

by using the above formula

Td=26 - ( 100 - 50 ) ÷ 5

=26 - 50 ÷ 5

=26-10

Td = 16°C

Thus, The wet bulb temperature if the dry bulb is 26 °C and the relative humidity is 77% is 16°C.

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Answer:

joule

Explanation:

A concentration cell is constructed of silver electrodes at 25°C . The cell potential, in units of volts is 0.043 V.

Ecell = - 0.059 / n log (C₁/C₂)

C₂ is greater than C₁

Ecell = - (0.059 /1 ) log ( 0.10 / 0.55)

Ecell = - 0.059 × log ( 0.181)

Ecell = - 0.059 × (-0.742)

Ecell =  0.043 V

Concentration cells are galvanic (or voltaic) cells that are made up of two half-cells with different concentrations of the same electrodes in each one. Fixation cells work to lay out balance by moving electrons from the cell with the lower focus to the cell with the higher focus.

Concentration cells are a crucial technology that is primarily utilized in batteries. The innovation is utilized for the transaction of substance to shape a harmony between the creations. Galvanic cells are limited to concentration cells.

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Answer:

0.044 V

Explanation:

First, we determine the number of electrons transferred in the reduction of Ag+ to Ag0. This is a one-electron transfer, so n = 1.We then calculate Q from the given concentrations. Note that we must make sure to place the smaller concentration value in the numerator to ensure that taking the logarithm of Q will produce a negative number (and thus a positive value of Ecell):

Q = [Ag+]1 / [Ag+]2 = 0.10 M / 0.55 M = 0.18

Finally, we place these values of n and Q into the equation for Ecell. Remember that E∘cell = 0 V here, because the cathode and anode are made of the same material.

Ecell = E∘cell − (0.0592 V / n) logQ

Ecell = 0 V − (0.0592 V1) log(0.18) = 0.044 V

To calculate the moles of H+ neutralized by the antacid per tablet, you need to use the formula Moles H+ neutralized = (Molarity of NaOH) x (Volume of NaOH used). The average volume of NaOH used from the two trials is 41.56 mL. Therefore, Moles H+ neutralized per tablet = (0.0885M) x (41.56 mL) / 2 = 1.86 x 10^-3 moles.

To calculate the moles of H+ neutralized per gram of the antacid tablet, you need to divide the moles of H+ neutralized per tablet by the average mass of the tablet. The average mass of the antacid tablets is (1.3027g + 1.3068g) / 2 = 1.3048g. Therefore, Moles H+ neutralized per gram of antacid tablet = 1.86 x 10^-3 / 1.3048g = 1.43 x 10^-3 moles/g.

To calculate the mass of the active ingredient per tablet, you need to use the formula Mass of active ingredient = Moles H+ neutralized x Molar mass of active ingredient. The molar mass of calcium carbonate is 100.0869 g/mol. Therefore, the Mass of active ingredient per tablet = 1.86 x 10^-3 moles x 100.0869 g/mol = 0.186 g.

The percent error can be calculated using the formula Percent error = |(Measured value - Expected value) / Expected value| x 100. The expected mass of the active ingredient per tablet from the label is 500 mg or 0.5 g. Therefore, Percent error = |(0.186 g - 0.5 g) / 0.5 g| x 100 = 62.8%.

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The volume of carbon dioxide that would be produced by this reaction if methane were consumed is: \(CH4 + 2O2 → CO2 + 2H2O\)

When methane gas and oxygen gas react, they produce water vapor and carbon dioxide gas. The volume of carbon dioxide produced by this reaction depends on the amount of methane gas that is consumed.

If 100 mL of methane gas were consumed, then the volume of carbon dioxide produced would be 44 mL. This reaction can be expressed in the following equation:
\(CH4 + 2O2 → CO2 + 2H2O\)

The mole ratio of methane gas to carbon dioxide gas produced by this reaction is 1:1. This means that if 100 mL of methane gas is consumed, then 44 mL of carbon dioxide gas will be produced. This is because 44 mL of carbon dioxide is equivalent to 1 mole of carbon dioxide gas, and 100 mL of methane gas is equivalent to 1 mole of methane gas.

Therefore, if 100 mL of methane gas is consumed in this reaction, then 44 mL of carbon dioxide gas will be produced. This can be determined by using the mole ratio of methane gas to carbon dioxide gas, which is 1:1.

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Answer:

it dosent have gravity bc it's fallen

Alternating co-polymers consist of [blank 1] different monomers and are among the most [blank 2] well-defined and structurally ordered of co-polymers.

1. The blank 1 is filled with "two" or "differently" as alternating co-polymers are composed of two different monomers that alternate in the polymer chain. Each monomer unit is repeated in a regular sequence.

2. The blank 2 is filled with "well-defined" or "ordered" as alternating co-polymers have a highly ordered structure due to the alternating arrangement of monomer units. This regular sequence provides a distinct pattern and uniformity in the polymer chain, making them more organized compared to other types of co-polymers.

In summary, alternating co-polymers are composed of two different monomers arranged in an alternating pattern, and they exhibit a high degree of structural order and uniformity.

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The correct order according to the Cahn-Ingold-Prelog system is as follows: -COOH III > -CHO IV > -CH2OH II > -CH3 I.

The Cahn-Ingold-Prelog system is a set of rules for determining the priority of groups attached to chiral centers in a molecule. The priority of each group is determined by the atomic number of the atom directly attached to the chiral center, with higher atomic numbers taking precedence over lower ones.

To apply the Cahn-Ingold-Prelog system to the given groups, we need to identify the atoms attached to the chiral center and their corresponding atomic numbers. In this case, the chiral center is the carbon atom in each group, and the attached atoms are hydrogen (H), oxygen (O), carbon (C), and iodine (I).

The atomic numbers of these atoms are: H = 1, C = 6, O = 8, and I = 53.

Using these atomic numbers, we can rank the groups in order of decreasing priority as follows:-

COOH III (O = 8) > -CHO IV (O = 8) > -CH2OH II (O = 8) > -CH3 I (H = 1)

Therefore, the correct order according to the Cahn-Ingold-Prelog system is -COOH III > -CHO IV > -CH2OH II > -CH3 I.

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One mole of pennies weighs 1.51 x 1024 g. The moon has a mass of and a penny weighs.

What does the word "mass" mean?

a way to gauge the amount of material that is present in or makes up a physical body. The mass of an item is important to Newton's equations of motion in classical mechanics because it affects the force required to accelerate it and, subsequently, how much inertia it has.

What does a mass and an illustration mean?

The best method to grasp mass is to consider how much matter each object or body is made of. There is mass in everything that we can see. A table, a chair, your bed, a football, a glass, and even air are examples of items with mass.

Briefing:

mass of 1 mole of pennies

Data: mass of 1 penny = 2.50 g

1 mole = 6.022 * 10^ 23 units

Proportion:

 1 penny      6.022 * 10^23 penny

-------------- = ----------------------------

  2.50 g                    x

Solve: x = 6.022 * 10^23 penny * 2.50g / 1 penny = 15.055* 10^23

Since 2.50 has 3 significant figures, the answer must use 3 significant figures => x = 15.1 * 10^ 23 g = 1.51 * 10^24 g

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There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the IUPAC name of the Mg\(_3\)P\(_2\) is Tri magnesium Di phosphide.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. The IUPAC name of the Mg\(_3\)P\(_2\) is Tri magnesium Di phosphide. The oxidation state of phosphide is -3.

Therefore, the IUPAC name of the Mg\(_3\)P\(_2\) is Tri magnesium Di phosphide.

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Nuclear fission is used to produce electric power in nuclear reactors. The correct option is (ii).

Nuclear fission is the basis for how nuclear reactors operate. Nuclear fission is sustained in a nuclear reactor by regulating the rate of fission and collecting the released energy. Steam is produced using the heat produced by this controlled fission reaction. The steam powers turbines, which produce electricity.

This method is widely used in nuclear power plants all over the world to produce a sizable portion of the electricity used in society. A large amount of energy is released when an atom's nucleus splits into two smaller nuclei, a process known as nuclear fission. Utilizing this power will enable nuclear reactors to produce electricity. The correct option is (ii).

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From the calculations below the quantity of heat absorbed is 74789 joules

We know that the expression for the quantity of heat is given as

Q = MCΔT --------------------1

Substituting our given data into the expression we have

Q = 325*4.184(70-15)

Q = 325*4.184(55)

Q = 74,789 Joules

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the heat of the water

Explanation:

water heat boils and starts to mske water vapor.

Answer:

18.01528 g/mol

Explanation:

Using the equation to figure this out

Answer:

18.01528 g/mol

Answer:

  D.  Polaris and Sirius are farther away than the Sun.

Explanation:

The radiation intercepted by Earth is inversely proportional to the square of the distance from the source. Polaris and Sirius are substantially farther away than the sun.

Polaris, for example, is about 27 million times farther away, so even though it is 4000 times brighter, we receive on the order of 5×10^-12 as much radiation from that star as from the sun.

We feel less heat from stars other than the Sun because they are farther away.

Answer:

Explanation:

Answer:

MgF2 magnesium fluoride

Answer:

adding an acidic solution

Explanation:

Strong acids dissociate completely in water and the H⁺ ions react with the OH⁻ ions to make H₂O. If we add an acid to our solution of Ca(OH)₂, the acid protons would react with some of the OH⁻ ions and drive the equilibrium to the right. More of the solid Ca(OH)₂ should dissolve.

The volume of 0.5 mole of oxygen gas at the given condition is 11.2 dm³.

Volume of 1 mole of oxygen at STP

The volume of one mole of oxygen at standard temperature an pressure is 22.4 dm³.

Number of moles of the oxygen gas

The number of moles of the 10 g of oxygen is calculated as follows;

n= 16/32

n= 0.5 mole

The volume of 0.5 mole of oxygen gas

V = 0.5 x 22.4 dm³

V = 11.2 dm³

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Nuclei located near electronegative atoms tend to be deshielded relative to 13c nuclei which are not. the correct answer is option(b).

When an atom of a certain chemical element forms a chemical bond, it has a propensity to draw shared electrons, which is denoted by the symbol, which stands for electronegativity. The atomic number of an atom and the separation of its valence electrons from the charged nucleus both have an impact on how electronegative that atom is.

When near proton nuclei, electronegative atoms frequently draw the chemical bonding toward themselves. Near the nucleus of a proton, there is a lower electron density. This phenomenon is often referred to as the de-shield effect.

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Answer:

Explanation:

a)  When the iron rod is heated, it expands (gets larger). That's the key to this whole procedure. It doesn't expand much -- depending on what temperature the iron rod is heated up to.

When the rod looks like it has expanded as much as it can, the rod is tightened as much as it can be tightened before damage is done. When the rod cools, it contracts (gets smaller). That brings the walls closer together or it stops the walls from bulging.

Very interesting question. I've never seen this. Thanks for asking.

Matter is found all around us and is present in all substances in the universe. Substances have a uniform composition and changes in this composition of of a substance is called chemical reaction.

The appropriate words that fill in the blanks are;

1) Mass

2) Substance

3) Properties

4) Physical

5) Density

6) Chemical

Matter has mass and occupy space. Matter with a uniform and unchanging composition is called a substance.

Substances have physical and chemical properties. The physical properties of a substance such as density can be observed without changing the composition of the substance.

Chemical properties of a substance such as rusting can only be observed when the chemical composition of the substance is altered(chemical reaction).

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Answer:

El Presidente de la República viene de un partido bien definido. El Rey queda al margen de la lucha política, en donde en las elecciones se abstiene sistemáticamente. ... El Monarca tiene carácter vitalicio, mientras que el Presidente de la República lo es durante el período de tiempo de su mandato.

Explanation:

El presidente cumple la función de representar el Estado y las funciones protocolares asociadas. Tiene exactamente el mismo papel que un rey de una monarquía constitucional o parlamentaria, donde lo único que cambia básicamente es el nombre.

Answer:

casi no hay diferencias excepto que personas le sirve al rey porque el ya dijo casi tadas las respuestas.

Explanation:

                                            te ayudo mi respuesta?

The Ca2+ concentration in a groundwater that is in equilibrium with calcite and has a PCO2 of 10-2.5 (atm) is 1.6 × 10-3 M.

The equilibrium expression for the dissolution of calcite (CaCO3) in water, assuming that CO2 is the only acidic gas present, is : CaCO3(s) + H2O + CO2(g) ↔ Ca2+(aq) + 2HCO3-(aq)

The equation for the relationship between the PCO2 of a gas and the concentration of dissolved CO2 in a solution in equilibrium with the gas is as follows : PCO2 = K(H2CO3) × [H2CO3] where,

K(H2CO3) is the Henry's law constant for CO2

H2CO3 is the concentration of dissolved CO2 in equilibrium with the gas.

We can estimate the concentration of H2CO3 as follows :

H2CO3 = α(CO2) × PCO2 where α(CO2) is the solubility coefficient of CO2 in water, which is a function of temperature, pressure, and salinity.

To solve the problem, we need to know the values of the following constants :

K(H2CO3) at 25 °C is 1.20 × 10-3 atm/(mol/L).

α(CO2) at 25 °C is 3.37 × 10-2 mol/L/atm.

Substitute the values into the equation :

PCO2 = K(H2CO3) × [H2CO3]10-2.5 atm = (1.20 × 10-3 atm/(mol/L)) × [H2CO3]

H2CO3 = (10-2.5 atm) / (1.20 × 10-3 atm/(mol/L)) = 8.33 × 10-3 M

Substitute the value of H2CO3 into the equilibrium expression and solve for the concentration of Ca2+ :

Ksp = [Ca2+][HCO3-]2 = 4.86 × 10-9

Ksp = [Ca2+][HCO3-]2[Ca2+] = Ksp / [HCO3-]2[Ca2+] = (4.86 × 10-9) / (8.33 × 10-3)2 = 1.6 × 10-3 M

Therefore, the Ca2+ concentration in a groundwater that is in equilibrium with calcite and has a PCO2 of 10-2.5 (atm) is 1.6 × 10-3 M.

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Answer:

See explanation

Explanation:

Let us recall that a negative ion is formed by addition of electrons to an atom. When electrons are added to the atom, greater interelectronic repulsion increases the size of the Te^2− hence it is greater in size than Te atom. Therefore, the ionic radius of Te^2− is greater than the atomic radius of Te.

In the second question, oxygen is positioned so far to the right because it has a far smaller nuclear charge compared to Te. Hence in the PES spectrum, the 1s sublevel of oxygen lies far to the right of that of Te.

Using principles of atomic structure, the reason why the atomic radius of Te is less than the ionic radius of Te²− is because of the Electrostatic force of repulsion between the negatively charged electrons of Te²- thereby causing the ion to be bigger than the neutral atom.

By considering the second scenario, the element oxygen is positioned so far on the right because it has a very much smaller nuclear charge compared to Te.

As a result, in the PES spectrum, the 1s sublevel of oxygen lies far to the right of the 1s sublevel of Te.

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Answer:

157 grams magnesium chloride

Explanation:

1.  We must first find the molar mass (g/mole) of magnesium chloride.  The molecular formula is MgCl2.

Add the elemental atromic weights for one molecule of the material:

1 Mg = 24.3

2 Cl = 2*(35.45) = 70.9

Total = 95.2 grams/mole

We can use this as a conversion factor by multiplying it times the moles we are asked to convert:  (1.65 moles MgCl2)*(95.2 grams/mole MgCl2).

The moles cancel, leaving us with 157 grams of magnesium chloride.

Answer: my opinion is about 5 pounds of apples that you can get with $10

Explanation:

srry if im wrong

A polymerization reaction that produces a smaller molecule as a by-product is known as a condensation polymerization.

In condensation polymerization, two monomer molecules react with each other to form a larger polymer molecule and a smaller by-product, usually water or a simple organic molecule. This type of polymerization reaction is common in the synthesis of various polymers, such as polyesters, polyamides, and polyurethanes.

To describe condensation polymerization further, it involves the formation of a covalent bond between the monomer molecules along with the elimination of a smaller molecule, such as water, methanol, or hydrogen chloride. This process can continue to produce long polymer chains, with the by-product being eliminated in each step of the reaction.

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The partial pressure of the hydrogen gas collected in this way is 710 mmHg. When collecting a gas over water, the total pressure of the system includes the vapor pressure of water at that temperature

When collecting a gas over water, the total pressure of the system is the sum of the partial pressure of the gas and the vapor pressure of water at that temperature. In this case, the total pressure is given as 742 mmHg, and the vapor pressure of water at 30°C is 31.8 mmHg.

To find the partial pressure of the hydrogen gas, we need to subtract the vapor pressure of water from the total pressure. Therefore, the partial pressure of the hydrogen gas can be calculated as:

Partial pressure of hydrogen gas = Total pressure - Vapor pressure of water

Partial pressure of hydrogen gas = 742 mmHg - 31.8 mmHg

Partial pressure of hydrogen gas = 710 mmHg

In this chemical reaction, the collected hydrogen gas exerts a partial pressure of 710 mmHg.

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Answer:

importent factors

Explanation:

The salient facts about something or qualities of something are the most important things about them: She began to summarize the salient features/points of the proposal. The article presented the salient facts of the dispute clearly and concisely. SMART Vocabulary: related words and phrases. Very important or urgent.

Answer

The answer is a/important factors. Pls subscribe to Amiredagoat Yt in return.

Explanation: