Although the extracellular environment has a high sodium ion concentration and the intracellular environment has a high potassium ion concentration, both must be neutralized by negatively charged molecules. In the extracellular case, what is the principal anion?.

Answer:

The atomic mass is a measure of the mass of one atom of a particular elements

Answer: relative atomic

In this reaction, for every 4 moles of potassium, 2 moles of potassium oxide will be formed. Therefore, if 1.52 moles of potassium react with oxygen, 0.76 moles of potassium oxide will be formed.

Potassium is an important mineral, essential for the proper functioning of cells, tissues, and organs. It is an electrolyte, meaning it helps to regulate the balance of fluids in the body and helps to transmit nerve impulses. Potassium is also involved in muscle contraction, energy production, and digestion. Foods high in potassium include fruits, vegetables, dairy products, legumes, and nuts. A diet rich in potassium may help to prevent hypertension, stroke, and kidney stones. Additionally, low levels of potassium can cause muscle weakness, fatigue, and decreased mental alertness. It is important to maintain a healthy balance of potassium in the body and speak to a doctor or registered dietitian if levels become too low or too high.

To learn more about potassium

https://brainly.com/question/25380525

#SPJ1

For an isothermal process, the entropy change of the surroundings is given by the equation ΔS_surr = -ΔH_sys / T

An isothermal process is a thermodynamic process that takes place at constant temperature. In this process, the internal energy of the system does not change, but energy is transferred between the system and its surroundings, resulting in a change in entropy

For an isothermal process, the entropy change of the surroundings is given by the equation :

ΔSuniv = ΔSsys + ΔSsurr

Where, ΔSuniv is the total entropy change of the universe

ΔSsys is the entropy change of the system

ΔSsurr is the entropy change of the surroundings.

According to the Second Law of Thermodynamics, the total entropy of a closed system always increases. Therefore, the entropy change of the universe (ΔSuniv) is always positive.

In an isothermal process, the temperature of the system and its surroundings are constant, so ΔSsys = 0. Hence, the equation can be simplified to ΔSuniv = ΔSsurr, which means that the entropy change of the surroundings is equal to the negative of the entropy change of the system.

Therefore, for an isothermal process, the entropy change of the surroundings is given by the equation ΔS_surr = -ΔH_sys / T.

To learn more about isothermal process :

https://brainly.com/question/28199016

#SPJ11

Answer:

C

Explanation:

Answer:

8 mol of hydrogen will react with 1 mol of sulfur.

Explanation:

We'll begin by writing the balanced equation for the reaction.

This is given below:

8H2 + S8 —> 8H2S

Now, let us carefully observe the mole ratio of the reactants.

This is illustrated:

The mole ratio of the reactants ( i.e H2 and S8) is 8 : 1

From the balanced equation above,

We can thus, concluded that:

8 moles of H2 will reacted with 1 mole of S8.

Answer:

b

Explanation:

edge 2021

ANSWER

EXPLANATION

Ammonia (NH3) is a base that does not contain hydroxyl ion but dissolved in water to produce ammonium ion and hydroxyl ion.

Recall, that pH scale is one of the tool used in determining a strong base and a weak base

The pH of ammonia is 11 and this make ammonia (NH3) to fall under the category of weak base

Therefore, ammonia is a weak base

Answer:

Huh.

Explanation:

Condensation or evaporation

Answer:

Thx Have a fantastic day! :)

Explanation:

Answer:

filtration and Chromatography

Explanation:

The first method used for separation of solids from the mixture is filtration. Filtration is used to separate different solids in a mixture which has particles of different sizes. Other method is Chromatography in which the compounds in the mixtures are separated from each other by moving the mixture at high speed. Due to high speed, the compounds are separated from each other because different compounds have different speeds so it is separated easily.

Answer:

Explanation:

Nitrogen has an atomic number of 7

2 in the K shell

7 in the L shell(instead of 8)

8-1=7

When NH3(aq) is added to CuSO4 or NiCl2 solutions, the metal-ammonia bond is stronger than the metal-water bond, causing ammonia substitution and forming metal-ammonia complex ions. The equilibrium shifts right due to this stronger bond.

For example:
Cu²⁺(aq) + 4NH3(aq) ⇌ [Cu(NH3)4]²⁺(aq) (deep blue)
Ni²⁺(aq) + 6NH3(aq) ⇌ [Ni(NH3)6]²⁺(aq) (violet)
When a strong acid like HCl(aq) is added, it reacts with ammonia (a base) present in the solution, removing ammonia from the equilibrium:
NH3(aq) + H⁺(aq) → NH4⁺(aq)
This causes the equilibrium to shift left, reforming the original aqueous Cu²⁺(sky blue) and Ni²⁺(green) solutions. This is because the removal of ammonia relieves the stress caused by the reaction between ammonia and the strong acid.

When CuSO_4 or NiCl_2 is dissolved in water, the resulting solution is sky blue or green in colour, respectively, due to the presence of Cu^2+ or Ni^2+ ions in an aqueous solution. However, when NH_3(aq) is added to the solution, the metal-ammonia bond is stronger than the metal-water bond, leading to ammonia substitution and the formation of metal-ammonia complex ions:
Cu^2+ + 4NH_3 ⇌ [Cu(NH_3)_4]^2+
Ni^2+ + 6NH_3 ⇌ [Ni(NH_3)_6]^2+
The addition of HCl(aq) affects these equilibria by reacting with the ammonia (a base) on the left side of the equations, removing ammonia from the equilibria and causing the reactions to shift left to relieve the stress caused by the removal of ammonia.

As a result, the metal-ammonia complex ions dissociate and reform the aqueous Cu^2+ and Ni^2+ solutions. This can be represented by the following equation for Cu^2+:
[Cu(NH_3)_4]^2+ + 4H^+ ⇌ Cu^2+ + 4NH_4^+
Overall, the effects of NH_3(aq) and HCl(aq) on the CuSO_4 or NiCl_2 solution can be explained by the metal-ammonia complex ion formation and the subsequent dissociation caused by the addition of H^+ ions.

Learn more about metal ammonia here: brainly.com/question/23717672

#SPJ11

Answer:he final equation will be C3H8 + 502 ----> 3CO2 + 4H20.

Explanation:There will be 10 oxygens on the products side and 2 on the reactants so to balance these out, we multiply the 02 on the reactants side by 5. The final equation will be There will be 10 oxygens on the products side and 2 on the reactants so to balance these out, we multiply the 02 on the reactants side by 5. The final equation will be C3H8 + 502 ----> 3CO2 + 4H20.

Answer:

12

Explanation:

Answer:

1.168888g/ml

Explanation:

2.63 divided by 2.25 gives as 1.1688888

Answer:

For example, when magnesium reacts with oxygen to form magnesium oxide, the magnesium atom loses two electrons to form the Mg2+ cation, which has electronic configuration 2,8. The oxygen atom gains these electrons to form the O2– anion, with electronic configuration 2,8.

1. Soil serves as a:

medium for plant growth,

regulator of water supplies,

recycler of raw materials,

habitat for soil organisms, and.

landscaping and engineering medium.

2. Soil organisms, which range in size from microscopic cells that digest decaying organic material to small mammals that live primarily on other soil organisms, play an important role in maintaining fertility, structure, drainage, and aeration of soil.

3. Advances in watershed, natural resource, and environmental sciences have shown that soil is the foundation of basic ecosystem function. Soil filters our water, provides essential nutrients to our forests and crops, and helps regulate the Earth's temperature as well as many of the important greenhouse gases.

The name of this compound using IUPAC rules is  3,4-dimethylhexane.

Option D is correct.

the IUPAC nomenclature of organic chemistry is described as a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry.

Option A, 2,3-diethylbutane, is incorrect because it has a different carbon chain length and different substituent positions.

Option B, 2-ethyl-3-methylpentane, is incorrect because it has a different carbon chain length and one of the substituents is incorrectly placed.

Option C, 3-methyl-4-ethylpentane, is incorrect because it has a different carbon chain length and the substituent positions are reversed.

Learn more about  IUPAC rules at: https://brainly.com/question/28872356

#SPJ1

5 Signs of dehydration are chills, dry mouth, muscle cramps, dark urine, and lightheadedness.

When the body loses more fluid than it takes in, it becomes dehydrated and is unable to function normally. This can result in a number of problems if it isn't treated, like losing strength and stamina, brain damage, or even death.

In addition to thirst, these are the top five symptoms of dehydration:

Know more about dehydration here: https://brainly.com/question/12261974

#SPJ4

Answer

Molarity of the solution = 2.81 mol/L

Explanation

Given:

Mass of lithium carbonate = 38 grams

Volume of solution = 183 mL

What to find:

Molarity of the solution.

Step-by-step solution:

The molarity of the solution can be calculated using the molarity formula, which is;

First, you need to convert 38 grams of lithium carbonate to mole using the mole formula.

Molar mass of lithium carbonate = 73.891 g/mol

Also, Volume in L = (183/1000) = 0.183 L

Putting the values of mole and volume in L into the molarity formula above, we have;

Hence, the molarity of the solution is 2.81 mol/L.

\(NO_{2} (OH)\) is a base and \(Ni(OH)_{2}\) is a basic oxide that dissolves only in an acidic solution. Option D is correct.

In light of the given data, we can presume that \(NO_{2} (OH)\) is a base and \(Ni(OH)_{2}\) is an essential oxide.\(NO_{2} (OH)\) is probably going to be a feeble base that goes through halfway ionization in water, prompting the development of hydronium particles \((H_{3} O^{+} )\) and nitrite particles (\(NO_{2}^{-}\)).

Since the arrangement is acidic, this proposes that the centralization of \(H_{3} O^{+\)particles is more prominent than that of the \(OH^-\) particles.Then again, \(Ni(OH)_{2}\) is an essential oxide that responds with an acidic answer for structure nickel particles \((Ni_{2} ^{+} )\) and water (\(H_{2} O\)). This response demonstrates that \(Ni(OH)_{2}\) is a base that can kill a corrosive.

In this manner, we can presume that \(NO_{2} (OH)\) is a base and \(Ni(OH)_{2}\) is an essential oxide, which is a sort of base that responds with a corrosive to frame water and a salt. In light of this, choice D is the right response.

To learn more about acidic solution, refer:

https://brainly.com/question/30186503

#SPJ4

Answer:

2.38x10²³ atoms oxygen

Explanation:

To solve this question we need to convert the mass of sand to moles using its molar mass (Molar mass SiO₂ = 60.08g/mol). Twice these moles are the moles of Oxygen and using Avogadro's number we can find the amount of atoms of Oxygen in the mixture:

Moles SiO₂:

11.87g * (1mol / 60.08g) = 0.1976moles SiO₂

Moles Oxygen:

0.1976moles SiO₂* 2 = 0.3951moles oxygen

Atoms oxygen:

0.3951moles oxygen * (6.022x10²³atoms / 1mol O₂) =

Answer:

Your answer is ATOM

Explanation:

Atoms consist of a nucleus made of protons and neutrons orbited by electrons. Atoms are the basic units of matter and the defining structure of elements.

Basically, they are the building block of life because everything made of matter has atoms

Adding Mg and waiting five minutes, a substantial number of F-actin filaments have formed, which suggests that the initial concentration of G-actin in the solution was likely above the critical concentration required for actin polymerization to occur.

Electron microscopy is a powerful imaging technique that uses beams of electrons to visualize the structure and morphology of specimens with very high resolution. Unlike light microscopy, which uses visible light to image samples, electron microscopy uses a beam of electrons that can be focused to much smaller sizes, allowing for much higher-resolution imaging.

There are two main types of electron microscopy: transmission electron microscopy (TEM) and scanning electron microscopy (SEM). In TEM, a beam of electrons is transmitted through the sample, producing an image that reveals the internal structure of the specimen, while in SEM, a beam of electrons scans across the surface of the specimen to create a detailed, three-dimensional image of the surface. Electron microscopy is widely used in fields such as biology, materials science, and nanotechnology to investigate the structure and properties of a wide range of materials and specimens.

To learn more about Electron microscopy visit here:

brainly.com/question/17083896

#SPJ4

Answer:

See explanation

Explanation:

We all know that noble gases are quite stable. The stability of noble gases is the reason why they do not participate in chemical bonding. This stability stems from their possession of a stable duplet or octet structure.

Atoms of other elements attain this stable duplet or octet structure by chemical combination (chemical bonding).

There are two main ways that elements can bod with each other;

Answer:

Yes.

Explanation:

Electric charge cannot change the elemental composition of a substance.

The application of charge to the aluminium foil does not change the composition of the foil and hence the foil will still be made up of aluminium atoms.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

Learn more about atom,here:

https://brainly.com/question/14214017

#SPJ2

Answer:

The answe is 1, arrow B

Explanation:

The initial volume of the argon sample was 42.7 L.

To solve this problem, we can use the combined gas law:

(P1V1)/T1 = (P2V2)/T2

where P1, V1, and T1 are the initial pressure, volume, and temperature, respectively, and P2, V2, and T2 are the final pressure, volume, and temperature, respectively.

Since the temperature is constant, we can simplify the equation to:

P1V1 = P2V2

Plugging in the given values, we get:

P1 = 1.83 atm

V2 = 11.7 L

P2 = 6.67 atm

So, rearranging the equation to solve for V1, we get:

V1 = (P2V2)/P1 = (6.67 atm x 11.7 L)/1.83 atm = 42.7 L

to know more about combined gas law refer here:

https://brainly.com/question/30458409#

#SPJ11

Answer:

i think your answer is d  

Explanation:

sorry if it is wrong

Step 1

The reaction must be completed and balanced as follows:

C3H8 + 5 O2 => 3 CO2 + 4 H2O

-------------

Step 2

Information provided:

20.0 g of C3H8

10.0 g of O2

----

Information needed:

1 mole of C3H8 = 44.1 g

1 mole of O2 = 32.0 g

(use your periodic table please)

-------------

Step 3

By stoichiometry,

C3H8 + 5 O2 => 3 CO2 + 4 H2O

44.1 g C3H8 ---------- 5 x 32.0 g O2

20.0 g C3H8 ---------- X

X = 20.0 g C3H8 x 5 x 32.0 g O2/44.1 g C3H8

X = 72.6 g O2

For 20.0 g of C3H8, 72.6 g of O2 is needed, but there is only 10.0 g of O2.

Therefore,

Answer:

The limiting reactant = O2

The excess = C3H8