Which of the following is not a property of water?

1) Hydrogen bonding causes a high surface tension.

2) Hydrogen bonds exist only in the solid state.

3) Water can dissolve ionic and polar molecules.

4) Water's solid state is less dense than its liquid state.

ITS CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Answer:

Porque las moléculas de glucosa son salvajes

Explanation:

Answer:

Glucose cannot move across a cell membrane via simple diffusion because it is simple large and is directly rejected by the hydrophobic tails. Instead it passes across via facilitated diffusion which involves molecules moving through the membrane by passing through channel proteins.

Explanation:

The sponge is unsaturated when it is taking in more water. It becomes saturated when it stops taking in water. It is supersaturated when water starts oozing out from the sponge.

A saturated solution contains just as much solute as it normally hold at a particular temperature. An unsaturated solution contains less solute than it can normally hold at a particular temperature. A supersaturated solution contains more solute than it can normally hold at a particular temperature.

We can use a sponge to model these three scenario as follows;

Water continues to enter into the sponge when it is unsaturated, this continues until the sponge becomes saturated with water and takes in no more water. When the sponge becomes supersaturated, water begins to ooze out from the sponge because it can no longer hold more water.

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There are 3.00 molecules of CO2 in 132.03 grams of CO2.

Mass is quantitative measure of interia a fundamental quantity of all matter.

Mass of CO2 = 132.03 grams

Number of molecules of CO2 = ?

Molar mass of CO2 = ?

For the molar mass of CO2: Atomic mass of Carbon = 12; Oxygen = 16

= 12 + (16 x 2)

= 12 + 32 = 44g/mol

Apply the formula:

number of molecules = (mass in grams/molar mass)

N = (132.03 grams/44g/mol)

N = 3.00 molecules

Thus, there are 3.00 molecules of CO2 in 132.03 grams of CO2.

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Answer:

I believe it is platinum

Explanation:

I think it is, haha

Answer:

zinc

Explanation:

kwkejnrkewnrkwe

The relative changes in concentration of the substances involved in an equilibrium as the system equilibrates can be determined by looking at the: C. Stoichiometry of the equilibrium

C. Stoichiometry of the equilibrium. The relative changes in concentration of the substances involved in an equilibrium as the system equilibrates can be determined by looking at the stoichiometry of the equilibrium, which tells us the ratios in which the reactants and products are consumed and produced.

This allows us to predict how the concentrations of the substances will change as the equilibrium is established.

The temperature and pressure of the system may also affect the equilibrium, but they do not directly determine the relative changes in concentration of the substances.

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One method of obtaining these nutrients from the shrub is through the branches of the Dodder plant penetrating the tissues of the shrub. This is an illustration of a partnership in which only one creature benefits.

Tissue is a collection of cells with a common structure and function that work as a single unit. The brain give it shape and help it retain heat and energy. ibrocartilage, epithelial tissue, muscle tissue, and nervous tissue are the four different types of tissues.

Your organism is made up of cells, and tissues are created when groupings of cells carry out similar tasks. Your body consists mostly of four different tissue types: connective, epithelial, muscular, and nervous tissue. Organs are cushioned and joined together by connective tissue. The skin's outer layer is made up of epithelial tissue.

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The coordination number around the central metal atom in ammonium diaquabis(oxalato)nickelate(II) is 6.

In the given compound, ammonium diaquabis(oxalato)nickelate(II), the nickel (Ni) ion is the central metal atom. The coordination number refers to the number of ligands (atoms or molecules) that are directly bonded to the central metal atom. In this case, there are two oxalate ligands (C₂O₄²⁻) and two water ligands (H₂O) bonded to the nickel ion, resulting in a coordination number of 6.

Each oxalate ligand contributes two oxygen atoms, and each water ligand contributes one oxygen atom, giving a total of six ligands surrounding the central nickel atom.

Therefore, in the compound ammonium diaquabis(oxalato)nickelate(II), the central metal atom has a coordination number of 6.

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Answer:

c

Explanation:

the map shows water near the factories go into moth lake so all of the waist will end up there

Kilocalorie is a unit of measuring the amount of energy of a reaction, but this is not the only unit, we can also have Joules as a unit, and the conversion is:

1 Kcal = 4184 Joules

Therefore if we have 3.25 Kcal, we will have:

3.25 * 4184 = 13600 Joules of energy, therefore letter D

Answer:

The chemical energy in a substance is determined by the potential energy of the bonds of the products formed when it reacts

Explanation:

It's five minutes before your lab period begins and you realize that you are not properly dressed for lab. You could F. A, B and D

Return to your residence to get the proper clothing, if time permits. This is a good option if you live close to the campus and can quickly change into the appropriate clothing without wasting too much time. However, if you live far away or have a long commute, this may not be a practical option.

Go to the Student Stores to purchase the proper clothing. This is a good option if the Student Stores are nearby and if they carry the clothing that you need. However, this may not always be the case, and you may end up wasting time and money trying to find suitable clothing.

Ask a friend to bring proper clothing, if time permits, is a good option if you have a friend who is nearby and willing to help. However, this may not always be the case, and you may end up causing inconvenience to your friend by asking them to drop everything and bring you the clothing that you need.

Overall, the best option is to plan ahead and ensure that you are properly dressed for lab well in advance. This will help you avoid any last-minute emergencies and ensure that you are able to focus on your lab work without any distractions. Therefore, the correct option is F.

The Question was Incomplete, Find the full content below :

It's five minutes before your lab period begins and you realize that you are not properly dressed for lab. You could (choose all correct options):

A. Return to your residence to get the proper clothing, if time permits.

B. Go to the Student Stores to purchase the proper clothing.

C. Try to sneak into lab while your TA is not looking.

D. Ask a friend to bring proper clothing, if time permits.

E. All of the above

F. A, B and D

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When an electron passes through the magnetic field of a horseshoe magnet, the electron's direction is changed.

Path of an electron in a magnetic field

The force (F) on wire of length L carrying a current I in a magnetic field of strength B is given by the equation:

F = BIL

But Q = It and since Q = e for an electron and v = L/t you can show that :

Magnetic force on an electron = BIL = B[e/t][vt] = Bev where v is the electron velocity

In a magnetic field the force is always at right angles to the motion of the electron (Fleming's left hand rule) and so the resulting path of the electron is circular.

Therefore :

Magnetic force = Bev = mv2/r = centripetal force

v = [Ber]/m

and so you can see from these equations that as the electron slows down the radius of its orbit decreases.

If the electron enters the field at an angle to the field direction the resulting path of the electron (or indeed any charged particle) will be helical. Such motion occurs above the poles of the Earth where charges particles from the Sun spiral through the Earth's field to produce the aurorae.

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NADH carries electrons and hydrogens to the electron transport chain.

The main role of NADH and FADH₂ is to donate electrons and hydrogen to the electron transport chain. NADH stands for Nicotinamide Adenine Dinucleotide (NAD) + Hydrogen (H). It also plays an important role of generating energy in the body. During the electron transport chain both NADH and FADH₂ donate electrons by providing hydrogen molecules to the oxygen molecules to create water. Both Kreb's cycle and glycolysis produces NADH.

The NADH that are produced by the body are used for generating energy for the body. Supplements are also taken for NADH but they have some side effects like blood pressure and other effects.

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Answer:

approximately 0.51 moles

Explanation:

gram of Nacl= numberof moles/RMM

relative molecular mass of NaCl=1×23+1×35.5=23+35.5=58.5

gram of NaCl =29.7/58.5=0.5076mole=approximately 0.51 mole

Explanation:

We need to convert 42.0 microliters into liters. Liters and microliters are the units to find the volume. Volume is the space occupied by an object. We must know 1 micro equals to what. So,

\(1\ \mu =10^{-6}\)

So,

\(42\ \mu L=42\times 10^{-6}\ L\)

So, there are \(42\times 10^{-6}\ L\) in 42 microliters.

Answer:

F. 6

Explanation:

When solid surfaces slide over each other, the kind of friction that occurs is called Sliding Friction.

NiCO₃, which is nickel(II) carbonate, has a Ksp of 1.42 x 10⁻⁷. Determine the compound's molar solubility, S. NiCO₃(s) + Ni₂₊ + CO₃²⁻(aq) chemical reaction. Ksp = 1.42·10⁻⁷.

The equilibrium constant for a solid material dissolving in an aqueous solution is the solubility product constant, Ksp. It stands for the degree of solute dissolution in solution. A substance's Ksp value increases with how soluble it is.

NiCO₃, the nickel(II) carbonate, has the following Ksp expression:

Ksp = [Ni₂₊][CO₃²⁻]

where [Ni₂₊] and [CO₃²⁻] are the concentrations of nickel and carbonate ions, respectively, in the solution.

Fe(OH)₂, the iron(II) hydroxide, has the following Ksp expression:

Ksp = [Fe₂₊][OH⁻]²

where [Fe₂₊] denotes the amount of iron(II) ions in the solution and [OH⁻] denotes the amount of hydroxide ions in the solution.

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Answer: Soil

Explanation:

Wind, rain, water, and glaciers are all agents of weathering because they can erode materials. Even though Glaciers need certain conditions they can still do damage to the surface of the earth. While soil is what gets eroded or sometimes is the product of erosion occurring.

Answer:

There were originally 8 atoms of Potassium-40.

Explanation:

The half-life of a radioactive material is the time taken for half the original material to decay or the time required for a quantity of the radioactive substance to reduce to half of its initial value.

If the original material formed without any Argon-40, it means that the atoms originally present were Potassium-40 atoms.

Presently, there are 7 Argon-40 atoms for every 1 of Potassium-40, we can deduce the number of half-lifes the Potassium-40 has undergone as follows :

After one half-life, (1/2) there will be one Potassium-40 atom for every Argon-40 atom.

After a second half life, 1/2 × 1/2 = 1/4: there will be one Potassium-40 atom for every three atoms of Argon-40.

After a third half-life, 1/4 × 1/2 = 1/8: there will be one Potassium-40 atom for every 7 atoms of Argon-40.

Since there are 1/8 atoms of Potassium-40 presently, there were originally 8 atoms of Potassium-40.

Answer:

\(density \: = \frac{mass}{volume} \\ density = \frac{16212}{840} \\ = 19.3g {cm}^{ - 3} \)

Since the density is 19.3g/cm^3, then the substance is gold.

Explanation:

Hope that this is helpful.

Have a great day.

Answer:

The answer is  Muscle, Stomach, chews or sucks.

Explanation:

These are the roles they play.

Each neutral element has a unique number of electrons and protons. Therefore, each element releases specific electrons when jumping down from an excited state. Each chemical element produces a unique set of neutrons.

Any of the numerous self-contained particles of matter or energy that make up the building blocks of all matter. Also known as an elementary particle. Both the heavier constituents of the atom's small but extremely dense nucleus, the positively charged protons as well as the electrically neutral neutrons, as well as the electrons, the negatively charged, nearly massless particles that still make up the majority of the atom's size, are examples of subatomic particles.

These fundamental atomic building blocks, however, are not the only subatomic particles that have been identified. For example, quarks are the fundamental building blocks of protons, neutrons, and other basic particles. The electron is only one of these particles, along with the muon and neutrino, that belong to this class.

Therefore, each neutral element has a unique number of electrons and protons. Therefore, each element releases specific electrons when jumping down from an excited state. Each chemical element produces a unique set of neutrons.

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The concentration of Cu2+(aq) in the solution is approximately 2.70x10^-7 M in 1.00 L solution contains 4.00×10-4 M Cu(NO3)2 and 3.000×10-3 M ethylenediamine.

To solve for the concentration of Cu2+(aq), we need to first find the concentration of Cu(en)22+ by using the Kf value and the concentration of ethylenediamine.
Kf = [Cu(en)22+]/([Cu2+][en]2)
1.00x10^20 = [Cu(en)22+]/(4.00x10^-4)(3.000x10^-3)^2
[Cu(en)22+] = 2.70x10^-7 M
Now we can use the stoichiometry of Cu(en)22+ and Cu(NO3)2 to find the concentration of Cu2+(aq).
2Cu(NO3)2 + 3en -> Cu(en)22+ + 4NO3-
Since the concentration of Cu(NO3)2 is known, we can set up an equation:
(2 mol Cu(NO3)2/1 L) x (1 mol Cu(en)22+/2 mol Cu(NO3)2) x (2.70x10^-7 M Cu(en)22+) = 2.70x10^-7 M Cu2+(aq)
Therefore, the concentration of Cu2+(aq) in the solution is 2.70x10^-7 M.

By using the Kf value and the stoichiometry of Cu(en)22+ and Cu(NO3)2, we were able to find the concentration of Cu2+(aq) in the solution.

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Answer:

It's explained below.

Explanation:

An everyday situation is when we raise an object.

Now, when we raise an object, energy is transferred to the Earth object system and thus the gravitational field energy of the system will increase.

Now, this energy is usually released when the object falls. The mechanism of this release is known as gravitational force.

In the same manner, two magnetic and electrically charged objects that are interacting at a distance will exert forces on each other and this can lead to transfer of energy between the interacting objects.

The acid dissociation constant (Ka) is a measure of the strength of an acid in solution. It is the equilibrium constant for the dissociation of a weak acid into its conjugate base and a proton. For the given reaction:

HF(aq) + H2O(l) ⇌ H3O+(aq) + F-(aq)

The equation for the acid dissociation constant (Ka) is:

Ka = ([H3O+][F-]) / [HF]

Ka represents the acid dissociation constant, and for the reaction involving HF and H2O, the equation is Ka = ([H3O+][F-]) / [HF].

The acid dissociation constant (Ka) helps determine the strength of a weak acid in solution. For the dissociation of HF in water, the Ka equation is given by Ka = ([H3O+][F-]) / [HF].

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Considering the Gay-Lussac's law, if the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by \(\frac{4}{3}\).

Gay-Lussac's law states that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of shocks against the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

In summary, when there is a constant volume, with increasing temperature, the pressure of the gas increases. And when the temperature is decreased, gas pressure decreases.

Gay-Lussac's law can be expressed mathematically as follows:

\(\frac{P}{T} =k\)

Studying an initial state 1 and a final state 2, it is fulfilled:

\(\frac{P1}{T1} =\frac{P2}{T2}\)

In this case, you know:

Replacing in Gay-Lussac's law:

\(\frac{3 atm}{T1} =\frac{4 atm}{T2}\)

Solving:

\(T2\frac{3 atm}{T1} =4 atm\)

\(T2=\frac{4 atm}{\frac{3 atm}{T1} }\)

\(T2=\frac{4 atm}{3 atm }T1\)

\(T2=\frac{4 }{3 }T1\)

Finally, if the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by \(\frac{4}{3}\).

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Answer:

A

Explanation: