What is the balanced equation for the reaction between acetic acid and NaOH?

Answer:

hydrogen is a non-metal and it has 1 valence electron

Explanation:

You can find the valence electrons on the bottom left of your periodic table, it is under the atomic number. Hydrogen is a non-metal because hydrogen conducts heat and electricity poorly.

Based on the pressure information in the data table, the pressure of light and heavy particle related to the pressure of the mixed particle having same pressure and same volume.

The lighter H₂ molecules will hit the walls more frequently and with less force because they move faster and collide with them more frequently. Because both light and heavy molecules hit the walls with roughly the same average kinetic energy at the same T, their pressure and consequent volume will be equal.

As the temperature increases, the particles gain energy and accelerate their motion. The movement of heavier particles is slower than that of lighter ones at the same temperature. Both the environment and the particles' mass affect their actual average speed.

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Complete question is" Based on the pressure information in the data table, how are the pressure of light and heavy particle related to the pressure of the mixed particle?".

a) The sphere emits thermal radiation at a rate of 139.75 Watts.

b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.

c) The sphere's net rate of energy exchange is 102.09 Watts.

To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.

a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:

Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))

Plugging in the given values:

Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)

Emitting Rate ≈ 139.75 Watts

b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:

Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))

Plugging in the given values:

Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)

Absorbing Rate ≈ 37.66 Watts

c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:

Net Rate = Emitting Rate - Absorbing Rate

Net Rate = 139.75 Watts - 37.66 Watts

Net Rate ≈ 102.09 Watts

Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.

Note: The units for all the rates are Watts.

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Answer:

which elements??? more info please

A compound containing iron and sulfur was formed by combining 2.233 g of iron with 1.926 g of sulfur. Fe\(_2\)S\(_3\) is the empirical formula of the compound.

While the molecular formula provides the precise number of each unique atom present in a molecule, the empirical formula for a compound provides the simplest ratio for the total amount of different atoms present. It constitutes an empirical formula if it has been simplified. The empirical formula is multiplied by the widely used molecular formula.

number of moles of sulfur =  1.926/ 32=0.06

moles of iron = 2.233/56=0.04

the simplest atomic ratio of the sulfur and iron atoms

S=0.06/0.04=1.5

Fe = 0.04/0.04=1

the whole number atomic ratio

S=1.5×2=3

Fe=1×2=2

empirical formula is Fe\(_2\)S\(_3\).

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Answer: Rising temperatures can lead to deadly pathogens in freshwater sources, making the water dangerous for people to drink. Contaminated water poses a huge threat to children's lives. Water and sanitation-related diseases are one of the leading causes of death in children under 5 years old

Explanation:

Answer:

Sodium is an alkali metal so it needs to lose an electron to fill it's outer shell.

That is an ion. When an element loses or gains an electron but in this case, sodium needs to lose an electron.

The quantity of sulfuric acid may not be used because sulfuric acid is excessive and aluminum is limiting.

Limiting reactants in reactions are reactants that are present in lower stoichiometric quantities in comparison with other reactants.

Thus, limited reactants determine how far the reaction can go in terms of producing products.

Thus, the percent yield of alum might have been calculated based on the starting quantity of aluminum because the latter is the limiting reactant of the reaction.

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Transmission is referred to as the uninterrupted passage of insolation through the atmosphere or water.

This can be defined as the process in which solar energy is incident onto objects which are usually in the form of waves. This is made possible through the process of heat transfer which is referred to as radiation in a medium such as air, water etc.

This is transmitted to the environment as it serves as a source of energy for the organisms which are present in the ecosystem. It is usually uninterrupted and are absorbed by plants during the process of photosynthesis.

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Answer:the plants received more sunlight

Explanation:

This problem is providing the equilibrium reaction between magnesium and carbon and asks for a way to increase the amount of magnesium oxide, a product. Thus, the answer turns out to be decrease the carbon.

In chemistry, when a chemical reaction attempts to go to completion, it might experience a limitation known as equilibrium; a condition where it is not able to proceed any further.

In such a way, for the given reaction:

\(2Mg+CO_2\rightleftharpoons2MgO+C\)

One can see that the increase of magnesium oxide, as required, can be accomplished by either increasing any reactant or removing any product in order to shift the equilibrium towards it.

In such a way, one concludes that the correct choice is decrease carbon as it will shift the reaction towards the product; however, we must keep in mind that neither solid nor liquid species contribute to the equilibrium.

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C₅H₁₁OH (1-pentanol) would have the higher boiling point, and C₅H₁₁OH (1-pentanol) would have the larger enthalpy of vaporization.

Alcohols are polar molecules because of differences in the electronegativities of carbon and oxygen. As a result, alcohols and other polar compounds interact through hydrogen bonding and dipole-dipole interactions.

This is because dispersion force. As the size and mass of molecules increase, the Vander Waals dispersion forces increase. Hence, boiling point and enthalpy of vaporization increase.

As the size and mass of molecules decrease, the Vander waals dispersion forces decrease. Hence, boiling point and enthalpy of vaporization decrease.

Hence, a) C₅H₁₁OH will have the higher boiling point. b) C₅H₁₁OH will have the larger enthalpy of vaporization.

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Yes, I am agree with the evaporating dish is not preheated, then the mass of the anhydrate will be heavier, resulting in a greater value for the anhydrate and a smaller value for "z" in this formula:

CuxCly • zH2O

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Answer:

A. to cure human diseases

Explanation:

Answer:

A

Explanation:

To cure human diseases.

When a fixed amount of ideal gas goes through an isochoric process, it means that the volume of the gas is held constant while its temperature and pressure are allowed to vary.

This process is also known as a constant volume process. Since the volume is held constant, any work done on or by the gas during the process is zero. The heat added to or removed from the gas is equal to the change in internal energy. This is because the change in volume is zero, so the gas cannot do any work on its surroundings. The isochoric process is often used in experiments where a specific amount of gas needs to be kept at a constant volume, such as in bomb calorimetry.

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*Complete question

What does it mean when a fixed amount of ideal gas goes through an isochoric process?

Answer:

Autosexuality means people are more attracted to themselves than to others and may prefer masturbation to sex with a partner.

Answer: autosexual people are people who are attracted to themselves rather than other people.

Explanation:

Answer:

Li₂CO₃ ⇒ Li₂O + CO₂ is a decomposition reaction.

Explanation:

In a decomposition reaction, a single substance decomposes, producing two or more different substances. In other words, in this type of reaction two or more substances are formed from a compound. The atoms that form a compound separate to give the products according to the formula:

AB → A + B

It can occur spontaneously, or be aided by a catalyst, heat, or electrolysis.

In this case:

Li₂CO₃ ⇒ Li₂O + CO₂ It is a type of chemical reaction in which a single compound decomposes into two or more compounds. So it is a decomposition reaction.

Answer:

A. Li2CO3 Right arrow. Li2O + CO2

Explanation:

Correct answer on edge 2022.

of water can be electrolytically broken down to yield 5 moles or oxygen gas. 1.64x1023 = 1677.72 if 1.64 moles or sodium chloride were produced.

A mole (6.021023 typical particles) of the any gas takes up 22.4L at STP (figure below). A comparison of various gases' molar volumes is shown in the image below. At STP, there exist samples containing helium (He), nitrous (N2), or methane (CH4). Each has a mole content of 1 or 6.02 1023 particles.

1.64x1023 = 1677.72

if 1.64 moles or sodium chloride were produced

One mole of the a material is equivalent to 6,022 x 1023 molecules of that substance.  The Avogadro number, also referred to as the Avogadro constant, is 6.022 x 1023. The definition of a mole can be used to the conversion between mass and particle count.

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Answer:

i no now dethankyou

Explanation:

3.20 grams mass of oxygen gas is released in the reaction if 8.06 g of magnesium oxide decomposes to form 4.86 g of magnesium.

A chemical reaction that results in the breakdown of one reactant into two or more products is known as a decomposition reaction.

Decomposition reaction = 2Mg0= O2 + 2Mg

In order to get two moles or 48.6 grammes, and one mole, or 32 grammes, of oxygen, you must break down two moles, or 80.6 grammes, of magnesium.

The result of 8.06 grammes of MgO is (8.06 32) / 80.6.

= 3.2 grammes of oxygen gas

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The mass of oxygen gas released is 3.2grams.

From the above decomposition reaction, the chemical notation of reaction is given by,

2MgO = 2Mg + O₂

From above reaction, we can say that 2 moles or 80.6 grams of Mg decomposes to give 2 moles or 48.6 grams of Mg and 1 mole or 32 grams of O₂.

So 8.06 gram of MgO will give (8.06 × 32) / 80.6

= 3.2 grams of oxygen gas.

Thus the amount of oxygen gas released is 3.2grams.

Decomposition reaction occur when complex chemical entities breakdown into smaller components. Decomposition reactions often demand energy input.

The digestion of food in our bodies is a typical illustration of the decomposition response. Here, food components including proteins, lipids, and carbs will break down into a variety of easier and more compact parts.

Decomposition reaction is classified into three types, they are thermolysis, electrolysis and photolysis.

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The agar concentration of the Mueller-Hinton agar used for the Kirby-Bauer test has a lower concentration than other agar media used in microbiology.

The reason why Mueller-Hinton agar used for the Kirby-Bauer test have a lower agar concentration than we normally use is to maintain the ideal depth of 4 mm.

The depth of the agar is critical to the test's accuracy.

The Kirby-Bauer test is a laboratory technique that assesses the efficacy of antibiotics.

The test's sensitivity and specificity are determined by a range of variables, including the depth of the agar, the inoculum density, and the type of medium used.

Kirby-Bauer test uses the Mueller-Hinton agar, which is a nonselective medium, unlike some agar media such as MacConkey agar. The Mueller-Hinton agar is perfect because it's hard enough to allow consistent diffusion of the antibiotics and provides nutrients for the bacterial growth.

The depth of the agar is essential for the test's accuracy because the antibiotic's diffusion capacity and microbial growth will be affected by the agar's depth.

Hence, to maintain the ideal depth of 4mm, the agar concentration must be lowered. A lower agar concentration guarantees that the depth of the agar remains at 4mm.

Therefore, the agar concentration of the Mueller-Hinton agar used for the Kirby-Bauer test has a lower concentration than other agar media used in microbiology.

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The shelf-life of the reconstituted ampicillin suspension remains unchanged at 16 days when stored at room temperature (25°C) compared to storing it in the refrigerator at 5°C.

To calculate the shelf-life of the reconstituted ampicillin suspension at room temperature, we'll assume that the degradation follows an Arrhenius relationship.

Shelf-life at 5°C (T₁) = 16 days

Temperature at 5°C (T₁) = 5°C

Temperature at room temperature (T₂) = 25°C

To find the shelf-life at room temperature, we can use the Arrhenius equation:

k₁ / k₂ = exp((Ea / R) * (1/T₂ - 1/T₁))

Since we don't have specific values for Ea and the reaction rate constants, we'll assume that they are the same for simplicity. Thus, we can write:

k₁ / k₂ = exp((Ea / R) * (1/25 - 1/5))

Simplifying the equation, we get:

exp((Ea / R) * (4/125)) = 1

To satisfy this equation, the exponential term must be zero, which implies:

(Ea / R) * (4/125) = 0

Solving for Ea, we find:

Ea = 0

Since Ea is zero, it means the reaction rate constants and degradation rates are the same at both temperatures. Therefore, the shelf-life at room temperature (25°C) is the same as the shelf-life at 5°C, which is 16 days.

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How does the size of a magnesium ion with a 2+ charge compare with that of a sodium ion with a single (+) charge?Magnesium has a larger ionic radius than sodium. The magnesium ion has a 2+ charge, while the sodium ion has a 1+ charge.

The ionic radius of an ion is determined by the number of electrons it contains, which is directly related to its atomic number. Sodium has an atomic number of 11, with 11 electrons in the atom. When one electron is removed from the outermost shell, it forms a sodium ion with a 1+ charge. The ionic radius of sodium ion is 95 picometers.Magnesium, on the other hand, has an atomic number of 12, with 12 electrons in the atom. When two electrons are removed from the outermost shell, it forms a magnesium ion with a 2+ charge. The ionic radius of the magnesium ion is 66 picometers.

Magnesium and sodium are two alkali metals that are very different from each other in terms of their properties. Magnesium is an alkaline earth metal with an  of 12, while sodium is an alkali metal with an atomic number of 11. The two metals differ in terms of the number of electrons they have, as well as in terms of the size of their ions when they are charged.Magnesium has a larger ionic radius than sodium because it has more electrons in its outer shell, which creates a greater electrostatic attraction between the electrons and the nucleus. As a result, the magnesium ion has a greater size than the sodium ion. The magnesium ion has a 2+ charge, while the sodium ion has a 1+ charge. The ionic radius of the sodium ion is 95 picometers, while the ionic radius of the magnesium ion is 66 picometers.

the size of a magnesium ion with a 2+ charge is smaller than that of a sodium ion with a single (+) charge. The difference in size can be attributed to the number of electrons in the outer shell of the ions, which determines the electrostatic attraction between the electrons and the nucleus. Magnesium has more electrons in its outer shell than sodium, which results in a greater electrostatic attraction and a larger ionic radius.

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