15 is the last one for the second problem

In comparison to the solute concentration inside cells, a hypotonic has a larger solute concentration. Red blood cells should never be placed in hypertonic solutions.

The major job of the red blood cell is to transport oxygen from our lungs and distribute it all throughout our body. Additionally, red blood cells carry wastes like atmospheric co2 back to the lungs for exhalation. Hemoglobin is a protein found in red blood cells that allows them to transport oxygen.

From our lungs, red blood cells transport oxygen to the rest of their systems. The carbon dioxide is then transported back to our lungs, where it is expelled.

To know more about Hypertonic visit:

https://brainly.com/question/13210811

#SPJ4

The boiling point of CH4 is −162 °C

What is boiling point?

The temperature at which a liquid's vapor pressure equals the pressure of the gas above it is known as the boiling point of the liquid. The temperature at which a liquid's vapor pressure equals one atmosphere is known as the typical boiling point of that substance.

At the same concentration, ionic solutes raise the boiling point more than nonionic solutes do. One of the collective properties is boiling point elevation. Only the quantity of particles in the solution is relevant. Because the intermolecular forces of attraction between methane molecules are so minimal, it has a low boiling point.

To learn more about temperature use link below:

https://brainly.com/question/4735135

#SPJ4

There are 80 oxygen atoms present in 20 molecules of dinitrogen tetroxide, N₂O₄.

Steps to be followed to calculate the number of atoms.

In one molecule of N₂O₄, 4 oxygen atoms are present.

In 20 molecules of N₂O₄, there are 20 x 4 = 80 oxygen atoms

Learn more about number of atoms from the link given below.

https://brainly.com/question/24675919

#SPJ4

The cycle begins with the conversion of the molecule acetyl-CoA into citrate molecules.

After this, a series of eight enzyme-catalyzed reactions occur, which result in the production of two molecules of carbon dioxide, one molecule of NADH and FADH2, one molecule of ATP, and one molecule of the intermediate compound oxaloacetate. The NADH and FADH2 molecules are then used in the electron transport chain, which produces a large amount of ATP. This ATP is used to power a variety of cellular processes, such as protein synthesis, cell growth, and transport of molecules across the cell membrane.

The cycle continues by reconverting the oxaloacetate back into acetyl-CoA so that the cycle can begin again. This cycle is able to produce large amounts of energy due to the multiple electron carriers and the efficient use of energy in each step of the cycle.

Read more about Metabolism:

https://brainly.com/question/14422941

#SPJ4

The policy's likely beneficiaries could turn out to be suspicions.

Term life insurance can be the best option if staying within your financial means is your top priority. if you are a parent to many children.

To learn more about policy's refer to:

https://brainly.com/question/6583917

#SPJ1

(B) HCN. According to the VSEPR theory, HCN species is linear. It features a triple bond between the C and N atoms and a bond angle of 180 degrees. It is a linear molecule.

According to the theory, electron pairs organize themselves to reduce their magnetic attraction to one another. Lone pair-lone pair > lone pair-bond pair > bond pair-bond pair are the electron pair repulsions in decreasing order. Examples of molecules that follow the VSEPR model include 1.

Because they are negatively charged, electron pairs will go as far apart as they can. Space is taken up by lone pairs rather than bonded electron pairs. Compared to single bonds, double bonds take up more room.

Because it ignores the relative sizes of the substituents and stereochemically inactive lone pairs, the VSEPR model also fails to predict the structure of some compounds. The d-block elements tend to contain electron pairs that are stereochemically inactive and have relatively high atomic masses.

To know more about VSEPR theory visit:

https://brainly.com/question/14225705

#SPJ4

The liquids formed three distinct layers because of different densities.

Ice has a density less than 1 g/cm3

We have to note that if the density of the liquids are not the same then the liquids would have to separate based on the density of each of the liquids. We have to also note that none of the liquids can be found to be miscible at all.

We know that the object that is less dense is the object that is going to float so the fact that ice was floating on the water means that the ice is less dense than water.

Learn more about density:https://brainly.com/question/29775886?

#SPJ1

Answer: the answers are A, B, D, E, and F

The compound CaCl₂ is made up of the ions : the cation is Ca²⁺ and the anion is 2Cl⁻.

The dissociation of the compound , calcium chloride ( CaCl₂) :

CaCl₂  ------>    Ca²⁺   +  2Cl⁻

The ions present in the compound , calcium chloride is :

The cation is Ca²⁺

The anion is 2Cl⁻

The calcium chloride is an ionic compound. The ionic compound is the compound is formed between the positively charged species cation and the negatively charged species called as anion. The ionic compound is formed by the complete transfer of electrons from the one atom to the other atom.

To learn more about ions here

https://brainly.com/question/14235169

#SPJ4

Answer:

Oxygen

Explanation:

This element has 8 protons (it doesn't matter if x or y are the protons, they both still have 8 of them), which means that the element is 8, otherwise known as Oxygen.

70 ml of 10% of fungicide solution to be mixed with,30 ml of 60% of fungicide solution to get 100 ml,of 25% of fungicide solution.

Pesticides known as fungicides work to eradicate or stop the development of fungi & their spores.They are effective against rusts, mildews, and other plant-damaging fungi.They could also be applied elsewhere to manage mold and mildew.

According to Mueller, the most popular class of fungicides worldwide is the triazole family.These locally systemically fungicides are not absorbed by the leaf but rather travel up and down the plant.Triazole pesticides (Folicur, Domark) block an enzyme involved in the formation of fungal sterol.

to know more about fungicide solution visit:

https://brainly.com/question/4390444

#SPJ4

In order to go from a solid to a liquid, heat must be added to the matter. This process is called melting.

Melting is the process of changing from a solid state to a liquid state. This process occurs when the temperature of the material increases and it can no longer remain in its solid form. During this process, the molecular structure of the material is disrupted, allowing the molecules to move around and form a liquid. Melting can occur with a wide range of materials, including metals, plastics, and even some organic compounds. The temperature at which a particular material melts depends on its composition and structure, as well as the surrounding environment. In many cases, melting can be a beneficial process, allowing materials to be reshaped or combined into new forms.

Melting occurs when the kinetic energy of the particles in the solid increase to the point where they can move past each other, forming a liquid. To transition from a liquid to a gas, more energy must be added. This process is called boiling. Boiling occurs when the kinetic energy of the liquid particles increase to the point where they can escape the surface of the liquid, forming a gas.

To learn more about melting
https://brainly.com/question/1079154
#SPJ4

The compound has the lowest boiling point is the correct option is (a) CH₃CH₂CH₃ compound.

The boiling point depends on the intermolecular force of the attraction. The stronger the intermolecular force of the attraction , the higher will be the boiling point of the compound.  The intermolecular force present in the methanol and the ethanol present is the hydrogen bonding. The hydrogen increases the boiling point of the compound.

The hydrogen bonding is absent in the CH₃CH₂CH₃ that is propane, therefore this compound has the lowest boiling point. The ethanol has the higher boiling point.

Thus , propane has the lowest boiling point among the other compounds.

To learn more about boiling point here

https://brainly.com/question/28174660

#SPJ4

The molar mass of magnesium is 24g/mol. The mass with one mole of a chemical in grams is known as its molar mass.

The mass with one mole of a chemical in grams is known as its molar mass and molecular mass. The term can also mean "mass per mole." The total mass of the atoms in one mole of a material is its molar mass.

Grams/mol is the measurement of molar mass. A mole of any material (atoms, molecules, etc.) has a standard value of 6.023 1023 units, which is the unit used as a reference in chemistry. It is sometimes referred to as Avogadro's number and is denoted by the symbol NA. A key formula inside the mole notion is molar mass. The molar mass of magnesium is 24g/mol.

Therefore, the molar mass of magnesium is 24g/mol.

To learn more about  molar mass, here:

https://brainly.com/question/7585012

#SPJ1

4 hybrid sp3 orbitals

Four sp3 hybrid orbitals emerge from the hybridization of a s orbital with each of the three p orbitals (px, py, and pz).

The binding angle between the sp3 hybrid orbitals is 109.5 degrees. Tetrahedral molecular structure can be explained via sp3 hybridization. It produces four sp3 orbitals, each of which is made up of 75% p character and 25% s character, by the hybridization of the two 2s orbitals and all three of the two 2p orbitals. We shall use carbon as an example because of how important it is to organic chemistry. The three 2p orbitals and the two 2s orbitals of carbon combine to generate four sp3 orbitals. Following an sp3-s orbital overlap, these orbitals join with four hydrogen atoms to form methane. The outcome shape is tetrahedral, since that minimizes electron repulsion.

To know more about hybridization click here:

brainly.com/question/14140731

#SPJ4

Isotopes.

Atoms of the same element that have different numbers of neutrons but the same number of protons are called Isotopes.

Ammonia has a dipole moment (1.47D) that is greater than NF 3's dipole moment (0.24D). For both molecules, the molecular geometry is pyramidal. Each molecule has one lone pair on the N atom. F is more electronegative than H, and the link between them is more polar.

Thus, it is anticipated that NF 3 will have a substantially greater dipole moment than NH 3. However, the contrary is true because, in the case of ammonia, the bond pair and lone pair dipole moments have the same direction, whereas, in the case of NF 3, they have the opposite direction.

Individual dipole moment vectors add in the ammonia molecule but cancel in the NF 3 molecule.

Learn more about Ammonia here:

https://brainly.com/question/14672082

#SPJ4

One of the postulates of the kinetic molecular theory that fails at low temperatures is the assertion that there are no attractive or repulsive forces between the gas particles.

According to the kinetic molecular theory, collisions between gas particles occur in perfect elastic motion and are always in motion. Boyle's and Charles's laws can both be explained by the kinetic molecular theory. Only absolute temperature directly affects a group of gas particle's average kinetic energy.

A gas's molecules do not interact with one another in an attractive or repelling manner. The volume of a gas's molecules is quite little in comparison to the void that exists between them.

To know more about kinetic molecular theory visit:-

https://brainly.com/question/15013597

#SPJ4

CO, CO₂ compounds do not have the same empirical formula among the followings.

Option B is correct.

The chemical formula of a compound known as an empirical formula only reveals the ratios (proportions) of the elements that are contained within the compound and not the actual number or arrangement of atoms. This would be the element in the compound with the lowest whole number ratio.

The empirical formula, which is defined as the ratio of subscripts to the smallest possible whole number of the elements in the formula, is the simplest formula for a compound.

Most of the time, the empirical formula is used to just show what elements are in a molecule. When someone wants to quickly see what they're dealing with, this is helpful. When determining the number of elemental atoms in a compound, the molecular formula is most useful.

Learn more about empirical formulas:

brainly.com/question/1603500

#SPJ4

The molarity of the solution that contains 200.0 g of naoh is 5.00 mol / 2.00 L = 2.50 M.

The molarity of a solution can be calculated by dividing the number of moles of solute by the volume of solution in liters. To find the number of moles of NaOH, we first need to find its molar mass:

NaOH = Na (23 g/mol) + O (16 g/mol) + H (1 g/mol) = 40 g/mol

So, 200.0 g of NaOH is equal to 200.0 g / 40 g/mol = 5.00 mol of NaOH

And the molarity of the solution is 5.00 mol / 2.00 L = 2.50 M.

The molarity of a solution is the number of moles of solute present in 1 liter of the solution. To calculate the molarity of a solution, divide the number of grams of solute by the molar mass of the solute and then divide that by the volume of the solution in liters. In this case, divide 200.0 g of NaOH by its molar mass, divide the result by 2.00 L to find the molarity.

Learn more about molarity here: brainly.com/question/8732513

#SPJ4

lower than. The moles per unit volume represent the concentration. Less moles exist in the same volume of the solution when it is diluted, resulting in a lower concentration.

Dilutions. The concentration of an aqueous solution falls when more water is added to it. This is due to the fact that while the total volume of the solution grows, the number of moles of the solute does not.

Dilution is the process in question. The following equation, M1V1 = M2V2, can be used to compare the concentrations and volumes before and after a dilution:

M1 and V1 stand for the molarity and volume of the initial concentrated solution, while M2 and V2 stand for the molarity and volume of the final diluted solution.

To know more about molarity, click the below link

https://brainly.com/question/8732513

#SPJ4

These nuclear processes also produce subatomic particles like protons or neutrons.

To learn more about nuclear processes refer to:

https://brainly.com/question/28541683

#SPJ1

Researchers frequently employ radiocarbon dating to establish an archaeological site's age.

The basis for this technique is the radioactive decay of carbon-14 (14C) into nitrogen-14 (14N). The best results from radiocarbon dating come from materials that are older than 50,000 years.

If an isotope with a half-life longer than carbon-14 were to exist, it would probably be based on the decay of a radioactive isotope that was suitable for dating materials older than 50,000 years. For this reason, isotopes like aluminum-26 and beryllium-10 are being researched. These isotopes haven't been employed for dating in a lot of places, though.

In conclusion, there isn't a single "optimal" isotope for dating archaeological sites that are 50,000 years or older. The most popular technique for this is radiocarbon dating, however other approaches are being researched for use in dating ancient materials.

Learn more about radiocarbon dating:

brainly.com/question/12693872

#SPJ4

Brass is the solution in which a solid is dissolved in a solid

If we talk about a solution we know that something have been dissolved in another. This is the key conscept when we talk of a solution. We often think of teh dissolution of a solid olr a gas in a liquid when the word solution does pop up.

Has it ever occured to you that a solid can also be dissolved ion a solid? Oh yes! This is what we call the alloys. There is an alloy when there is the solution of a solid in a solid such as brass.

Learn More about solution:https://brainly.com/question/7932885

#spj1

Brass is the solution in which a solid is dissolved in a solid and is therefore denoted as option D.

This is one of the four fundamental states of matter and the molecules  are usually closely packed together and contain the least amount of kinetic energy.

Brass is a solution of zinc in copper. Brass is proposed by mixing molten zinc with molten copper and cooling their mixture which brings about them being homogenous.

Read more about Solids here https://brainly.com/question/752663

#SPJ1

The full question:

brass is the solution in which a solid is dissolved in a(n)Select one:

a. gas

b. liquid

c. water

d. solid

A) In a solution, the solvent is often the component that is present in the highest concentration.

The remover The substance(s) present in the greatest amount in any solution, whether gaseous, liquid, or solid, are the solvent(s), and the substance(s) present in the lower amount(s) are the solute(s) (s).

Term in this set (6) A liquid that dissolves things is called a solvent. Solvable substances are those that can dissolve in a certain solvent. A substance is said to be insoluble if it cannot dissolve in a specific solvent.

To learn more about gaseous here:

https://brainly.com/question/4594811

#SPJ4

First and second statements are correct regarding different types of mixtures. A heterogeneous mixture contains two or more different phases, and the composition of any mixture is variable.

The first statement, "A heterogeneous mixture contains two or more different phases" is true because heterogeneous mixtures consist of two or more different phases, such as solids, liquids, and gases. Each phase has its own distinct properties, such as viscosity, density, and boiling point, which are determined by the components that make up each phase.

The second statement, "The composition of any mixture is variable" is also true. Mixtures can consist of any combination of the various components that make up the mixture, and the proportions of each component can vary. The different components of a mixture can be combined in a variety of ways, and the proportions of each component can be adjusted to obtain the desired properties of the mixture.

Differences in particle size do not account for the main differences between solutions and colloids, as solutions contain particles that are small enough to be completely dissolved, while colloids contain particles that are larger and remain suspended in the mixture. The main difference is that solutions are homogeneous mixtures, while colloids are heterogeneous mixtures. Solutions are composed of molecules that are small enough to be evenly distributed throughout the mixture, while colloids contain particles large enough to remain suspended in the mixture, creating a heterogeneous mixture.

To know more about colloids please refer:

https://brainly.com/question/11640006

#SPJ4

The  350 mM Tris is needed to make the 2 liters of the 0.1 M solution, The volume of the  water is 0.571 L.

The initial molarity , M1 = 350 mM = 0.350 M

The final molarity , M2 = 0.1 M

The final volume , V2 = 2 L

The initial volume , V1 = ?

The expression is :

M1 V1 = M2  V2

Where ,

M1 = 0.350 M

M2 = 0.1 M

V1 = ?

V2 = 2 L

V1  = M2 V2 / M1

V1 = ( 0.1 × 2 ) / 0.350

V1 = 0.571 L

Thus, the volume of the Tris is 0.571 L.

To learn more about molarity here

https://brainly.com/question/8732513

#SPJ4

Answer:

B

Explanation:

B. The outer outer electron (valence electrons)... It is more important to an atom's chemical properties.

Therefore, 96.768 grams of carbon dioxide is the theoretical yield.

Stoichiometry is largely used in chemistry to balance chemical reactions. The relationship between the physical alterations of two or more chemical elements during a chemical reaction is also determined using this method.

Given data

Mass of the ethane = 20.2 g

Mass of oxygen gas is m。 = 125 g

The molar mass of the ethane is Me = 30.07 g/mol

The molar mass of the oxygen is M = 16 g/mol

The number of moles of ethane is calculated as,

nm = me/Me

= (20.2g)/(30.07g / m * ol) = 0.672mol

The necessary chemical process is illustrated below.

2C2H6 + 702 → 4CO2 + 6H2O

Two moles of ethane and seven moles of oxygen are reacting in the reaction shown above to produce four moles of oxygen and six moles of water. Because there are fewer moles of ethane than there are of oxygen in this chemical reaction, it acts as the limiting reagent. Therefore, the amount of ethane is exactly equal to the amount of carbon dioxide in moles.

Consequently, the theoretical carbon dioxide yield is determined as follows:

Yield equals = ne(4 Mc + 6 Mo).

= (96.768 g) (0.672 mol) (4 12 g/mol + 6 16 g)

=96.768 grams

To learn more about chemical reaction visit,

https://brainly.com/question/29039149

#SPJ4

Gaseous ethane (CH3CH3) reacts with gaseous. oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). What is the theoretical yield of cartoon dioxide formed from the reaction of 20.2 g of ethane and 125 g of oxygen gas? Be sure your answer has the correct number of significant digits in it.