as an electron gets closer to the nucleus the _____ (attraction/repulsion) to the nucleus gets _____ (stronger/ weaker).

An acid-base imbalance can result in various physiological and clinical manifestations. Some of the effects of acid-base imbalances include:

1. Respiratory Acidosis: This occurs when there is an excess of carbon dioxide (CO2) in the blood due to inadequate removal through respiration. Symptoms may include hypoventilation, shortness of breath, confusion, and fatigue.

2. Respiratory Alkalosis: This condition arises when there is a decrease in carbon dioxide levels in the blood, often caused by hyperventilation. Symptoms may include rapid breathing, dizziness, lightheadedness, and tingling sensations.

3. Metabolic Acidosis: Metabolic acidosis occurs when there is an excess of acid or a deficit of bicarbonate (HCO3-) in the blood. Causes may include kidney disease, diabetes, excessive alcohol consumption, or certain medications. Symptoms may include deep and rapid breathing (Kussmaul respirations), nausea, vomiting, fatigue, and confusion.

4. Metabolic Alkalosis: This condition results from an excess of bicarbonate (HCO3-) in the blood, often caused by prolonged vomiting, use of diuretics, or excessive intake of alkaline substances. Symptoms may include muscle twitching, hand tremors, nausea, vomiting, and confusion.

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The molecular structure of water is bent. The physical and chemical properties are given in the explanation part.

Water is a substance (of molecular formula H₂O) found at room temperature and pressure as a clear liquid.

A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent.

Water is a unique molecule with outstanding physical and chemical properties as follows:

PHYSICAL PROPERTIES:

CHEMICAL PROPERTIES:

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Answer:

1

Explanation:

single displacement replaces one element with another and it's product is a pure element.

The reactivity of epoxides in nucleophilic substitution reactions depend on the high steric strain of the 3-membered ring.

Epoxides' reactivity in nucleophilic substitution processes is influenced by the 3-membered ring's high steric strain. In comparison to a 3-membered ring, a 5-membered ring experiences less steric strain. As a result, its reactivity is more comparable to that of noncyclic ether.

One nucleophile substitutes another in a family of organic reactions known as nucleophilic substitution reactions. It closely resembles the typical displacement reactions we observe in chemistry, in which a more reactive element displaces a less reactive element from its salt solution. The "leaving group" is the group that accepts an electron pair and displaces the carbon, while the "substrate" is the molecule on which substitution occurs. In its final state, the leaving group is a neutral molecule or anion.

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Complete question:

Would you expect the reactivity of a five-membered ring ether such as tetrahydrofuran to be more similar to the reactivity of an epoxide or to the reactivity of a noncyclic ether? Why?

The reactivity of tetrahydrofuran (THF), a five-membered ring ether, to be more similar to the reactivity of an epoxide than to the reactivity of a noncyclic ether.

This is because both THF and epoxides have a strained three-membered ring that is highly reactive due to ring strain, whereas noncyclic ethers do not have this strain.

Additionally, the oxygen atom in THF and epoxides is more electrophilic due to the ring strain, making them more reactive in nucleophilic reactions. Therefore, THF is likely to react more quickly and selectively in reactions that involve the opening of the ether ring compared to noncyclic ethers.

Based on the terms provided, I would expect the reactivity of a five-membered ring ether such as tetrahydrofuran (THF) to be more similar to the reactivity of a noncyclic ether rather than an epoxide.

This is because THF has a larger ring size compared to an epoxide, which reduces the ring strain and makes it less reactive. Noncyclic ethers also have reduced strain compared to epoxides, making their reactivities more similar.

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Since hydrogen peroxide is both acidic and basic, it serves as both an oxidizing and a reducing agent.

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Answer:

câu trả lời trong hình ảnh

Answer:

I'm terribly sorry but the download is not working for me! All it says is Download pdf, and when I click it, It does nothing except for refreshing the page!

Explanation:

Answer:

1

Recall that at STP, 1 mole of any ideal gas occupies 22.4 liters. Volume O2 gas = 0.0510 moles O2 x 22.4 L/mole = 1.14 liters (3 sig.

Explanation:

hope this helps

Answer:

nếu có 40g dung dịch NaOH 20% phairn dùng hết bao nhiêu gam dung dịch HCl 25% để trung hoà

Answer:

60%

Explanation:

En la reacción:

2SO₂ + O₂ → 2SO₃

Donde 2 moles de SO₂ reaccionan por mol de O₂.

El peso atómico del SO₂ es:

1S = 32g/molₓ1 = 32g/mol

2O = 16g/molₓ2 = 32g/mol

SO₂ = 32g/mol + 32g/mol = 64g/mol

Y el peso atómico de O₂ es:

2O = 16g/molₓ2 = 32g/mol

Las moles de SO₂ y O₂ son:

SO₂: 40g ₓ (1mol / 64g) = 0.625 moles

O₂: 25g ₓ (1mol / 32g) = 0.7813 moles

Para una completa reacción de SO₂ se necesitan:

0.625 moles SO₂ ₓ (1mol O₂ / 2 mol SO₂) = 0.3125 moles de O₂

Así, las moles en exceso de O₂ son:

0.7813 moles - 0.3125 moles = 0.4688 moles O₂

En gramos:

0.4688 moles O₂ ₓ (32g / mol) = 15g O₂ están en exeso.

El porcentaje en exceso es:

15g / 25g ₓ 100 =

Answer:

0.002

Explanation:

The significant figures of a number are digits that are meaningful in trying to resolve a given value. These are actually digits that carry meaning in a given number.

Let s look at  0.002, the zero before the decimal  point carries no real meaning in the number. However, the zeros that precede 2 are all meaningful because the occupy the tenth and hundreth place values.

Hence, there are three significant figure in  0.002.

Answer:

Explanation:

Boi

Answer:

Energy

Explanation:

energy is defined in science as the ability to move matter or change matter in some other way energy can also be Eefined as the ability to do work which means using force to move an object over a distance when work is done energy is transferred from one object to another.

because they run out of energy.

EXPLANATION:

when it is transferred and to other objects, or their kinetic energy is converted into gravitational energy.

Answer:

4.8x10⁻³ Liters are required

Explanation:

Molarity is an unit of concentration in chemistry defined as the ratio between moles of solute (In this case, silver nitrate) and liters of solution.

The 0.50M solution contains 0.50 moles of silver nitrate per liter of solution.

To provide 2.4x10⁻³ moles Silver nitrate are required:

2.4x10⁻³ moles * (1L / 0.50 moles) =

Answer:

I'm not 100% sure of this butit could be the result of over watering a plant or could be the result of killing insects that actually help the plant. Again not 100% sure but hope it helps

Answer:

Well, SCl2 is known, so is disulfur dichloride… Cl−S−S−Cl …and BOTH these species are molecular… On the other hand, lithium chloride, an ionic salt, is decidedly non-molecular, and consists of an infinite array of lithium and chloride ions held together by strong electrostatic forces ….. and thus we would expect the salt to have the much higher melting point….

Among the given gases, the gas that shows the greatest deviation from ideal behavior at 25 degrees Celsius and 1 atm is likely to be H2 (hydrogen).

1. Size and shape of molecules: Hydrogen gas (H2) consists of diatomic molecules that are very small in size. The size of the hydrogen molecule is relatively larger compared to other gases such as CH4 (methane), SO2 (sulfur dioxide), and O2 (oxygen). The small size of hydrogen molecules leads to a higher probability of molecular interactions and deviations from ideal behavior.

2. Intermolecular forces: Hydrogen gas has relatively weak intermolecular forces compared to other gases. Although it exhibits London dispersion forces, these forces are not as strong as the dipole-dipole interactions in molecules like SO2 and CH4 or the formation of double bonds in O2. The weaker intermolecular forces in hydrogen contribute to larger deviations from ideal behavior.

Based on the size and shape of molecules as well as the strength of intermolecular forces, hydrogen gas (H2) is expected to show the greatest deviation from ideal behavior among the given gases at 25 degrees Celsius and 1 atm.

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Answer:

Because you don't want 2 different things mixing together unless their supposed to be mixed together

Explanation:

The hand cream used as a separating agent when the flubber was handled because it is not about 2 different things mixing together unless their supposed to be mixed together.

What is separating agent ?

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According to the beer-lambert law when its concentration increases  so does the absorbance increase.

beer-lambert law states that the amount of energy absorbed or transferred by a solution is proportional to the molar absorptivity of the solution and the concentration of the solute.

This means that concentrated solutions absorb more light than dilute solutions.

so the According to the beer-lambert law concentration increases, so does the absorbance. Therefore, absorbance is directly proportional to concentration.

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Answer: Thermal Energy

Explanation:

Answer:2

Explanation:

The number of valence electrons for a helium atom is 2. This can be confirmed by looking at the electronic configuration.

Helium is placed in the noble gas series as it has certain properties of it. The atomic number of helium is 2. Thus, it has two electrons in its outermost shell but it has completely filled orbital.

Electronic configuration of He = 1s2

Thus, for drawing the electron dot structure, there are two valence electrons.

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The fundamental nature of strategic management requires the awareness & understanding of outside forces & encourages strategic managers to adopt new ideas is known as Adaptation.

Three definitions of adaptability are connected. First, natural selection, a dynamic evolutionary process, adapts organisms to their environments, improving their evolutionary fitness. Second, it is a state that the populace has attained along that process. Thirdly, it is a phenotypic characteristic or adaptive trait that has been preserved and has evolved via natural selection and has a functional purpose in each individual organism.

History has recorded descriptions of adaptation going back to the time of the ancient Greek philosophers Empedocles and Aristotle. Natural theology of the 18th and 19th centuries saw adaptation as proof of the presence of a deity.

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Answer: ;)

Explanation:

Molarity of a salt solution with a volume of 250 mL that contains 0.70 mol NaCl is 2.8.

Molarity = (No. of moles of solute ÷ Volume of solution in liters)

Molarity = (0.70 ÷ 0.250)

Molarity = 2.8

Molarity of a given solution is known as the total number of moles of solute per litre of the solution.  A solution that is 1.00 molar (written 1.00 M) contains 1.00 mole of solute for every liter of solution.

Therefore, Molarity of a salt solution with a volume of 250 mL that contains 0.70 mol NaCl is 2.8.

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Answer:

Sunspots are cooler and darker than the rest of the Sun's surface. They are marked by intense magnetic activity. Solar prominences are the plasma loops that connect two sunspots. Solar flares and coronal mass ejections are eruptions of highly energetic particles from the Sun's surface.

Explanation:

Answer:

Sunspots are dark areas on the surface of the Sun that are cooler than surrounding areas. They appear in groups, vary in size, and cycle in number over an 11-year period. Solar flares are sudden eruptions of energy from a small area of the Sun's surface. They are extremely hot (10 to 20 million degrees Celsius) and extend into the corona. Solar flares occur near sunspots and can disturb radio communications on Earth.

Explanation:

Answer: Why exacly am i a rat

Explanation:

,....

but thanks

Answer:

what!!!??????

Answer: potential hydrogen

Explanation:

Potential hydrogen is what pH stands for. Based on the concentration of hydrogen ions (H+) in the solution, it determines the acidity or basicity (alkalinity) of a solution.

A solution's pH, which ranges from 0 to 14, with 7 denoting neutrality, indicates how acidic or basic it is. It also represents the amount of hydrogen ions that are present.

The negative logarithm (base 10) of the hydrogen ion concentration, written as [H+], is used to calculate a solution's pH.

[H+] = 10-pH can be used to compute the hydrogen ion concentration in a solution, which is expressed in moles per litre (mol/L). For instance, a pH 4 solution has a hydrogen ion concentration of 10-4 mol/L, which is 10 times more than a pH 5 solution.

In several disciplines, including biology, chemistry, environmental science, and food science, the pH of a solution is significant. In biology, the blood pH normally ranges from 7.35 to 7.45, and the pH of the human body is tightly controlled to maintain a healthy balance. A shift in blood pH, also referred to as acidosis or alkalosis, can have detrimental effects on one's health.

Since pH has an impact on a substance's solubility and reactivity, it plays a significant role in many chemical reactions. For instance, many industrial processes, including the manufacture of fertilisers and paper, rely on controlling the pH of the used solutions. This is because the pH of a solution can impact the rate at which enzymes function.

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Answer:

PLZ FOLLOWING ME.........................

Answer:

37×na

Explanation:

37× 6.022×10²³

37×na

By filtering wastes out of the bloodstream and maintaining fluid balance, the urinary system helps to maintain homeostasis.

Homeostasis refers to the maintenance of stable internal conditions within an organism, despite changes in its external environment. It involves the coordination of multiple physiological processes that work together to maintain a steady state. Homeostasis is important for the survival of all living organisms, as it ensures that vital biological functions can continue to operate within an optimal range, even in the face of external stressors. The urinary system is just one of many systems in the body that contributes to maintaining homeostasis.

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Answer:

B

Explanation:

Because the electrons are greater than the protons which makes the atom negative charged.

And when you minus 6-8=-2

Hope this helped!

The charge of an atom with 6 protons and 8 electrons is -2. Because the number of electrons dominates by 2 units.

Atoms in their neutral state have equal number of electrons and protons. Electrons are negatively charged particles and protons are positively charged particles.

Hence, all the positive charges are neutralized with equal number of negative charges. When atoms loss or gain electrons they gets charged and this charged atom is called ions.

When electrons dominates in number or atoms gain electrons they acquire negative charge and form anions. Similarly if atoms loss  electrons they form positive ions.

Here, the number of electron is 2 greater than protons. Hence the charge of the atom is -2.

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