determine the concentration of a naoh solution if 27.80 ml of naoh is required to neutralize 10 ml of a 1 m h2so4 solution

Answer:

Chlorine (Cl)

Explanation:

Bromine: 2.96 electronegative

Chlorine: 3.16 electronegative

3.16 > 2.96

Hope this helps!!

Taking into account the definition of density, the density of the glucose is 1.03 \(\frac{g}{mL}\).

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

\(density=\frac{mass}{volume}\)

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

In this case, you know that:

Replacing in the definition of density:

\(density=\frac{20.6 g}{20 mL}\)

Solving:

density= 1.03 \(\frac{g}{mL}\)

In summary, the density of the glucose is 1.03 \(\frac{g}{mL}\).

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According to the given information CaCl₂(s) are the particles arranged in a crystal structure.

The correct option is A.

A crystal system is composed of a number of axes. Or, to put it another way, the structure is an arranged grouping of atoms, ions, or molecules. The crystal structure is made up of bonded atoms, atom clusters, or molecules. Due to the constituent particles' innate propensity to arrange themselves in symmetrical patterns, this structure forms.

This inorganic salt is crystallized calcium cations and chlorine anions. Ions are grouped in a systematic way.

Ethane (C₂H₆) is a gas; the symbol for a gas in chemistry or its physical state is g. Gases lack a solid structure.

Methanol (CH₃OH) is a liquid; the symbol for liquids in chemistry is l, and it lacks a structural structure.

Since water dissolves calcium iodide, the resulting aqueous solution (aq) lacks a crystal structure.

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Answer:

b. Malic Acid

Explanation:

Malic (organic) Acid is found in apple.

GL

Colloids are particles that measure between 1 and 1000 nanometers in size and scatter light. They are relatively stable particles that remain suspended in a solvent and do not settle over time.

Because of their small size, colloids have a large surface area, which is a key factor in their reactivity with ions, including cations.The attraction of ions towards a colloid surface is based on their size, charge, and concentration. The charge of a cation plays a vital role in the interaction of a colloid's surface. This is because a colloid's surface carries an opposite charge to that of the cation.

Small cations have a higher charge density than larger ones, which means they are attracted more strongly to colloid surfaces.The high charge density of small cations can interact with the colloid's surface at a closer range than large cations. Because of their size, large cations cannot come as close to the colloid's surface as small cations. Hence, small cations are attracted to colloid surfaces more strongly than large cations.As a result, smaller cations are more attracted to the surface of the colloids than larger ones. This suggests that the stability of colloidal systems is affected by the size of the cation involved.

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Answer:

The presence of drugs or chemicals in an organisms environment can also influence gene expression in the orgains.

1.

\(1.20 \: mol \times \frac{6.02 \times {10}^{23} }{1 \: mol} = 7.224 \times {10}^{23} atoms\)

2.

\(9.25 \times {10}^{25 \:} molecules \times \frac{1 \: mol}{6.02 \times {10}^{23} } \)

\( = 153.654485 \: moles\)

3.

molar mass = 3(24.31) + 127.60 + 5(32.07)

molar mass = 360.88 g

4.

molar mass = 3(58.93) + 2(30.97) + 8(16.00)

molar mass = 366.73 g

5.

molar mass = 98.09

\(125 \: g \times \frac{1 \: mol}{98.09 \: g} = 1.274339892 \: moles\)

//

I'm too lazy to do the rest but you should get a general idea of how to do it.

Also, round as you wish!

Ayo, thanks for my points

The trend in atomic radii on the periodic table is that atomic radii increase from right to left and from top to bottom.

Therefore, the element with the largest atomic radius and the weakest bond in citrate would be found towards the bottom left corner of the periodic table. As for the lowest bond dissociation energy, this means that it is easiest to break this bond. Based on this information, we can conclude that the bond in citrate that is the longest and weakest with the lowest bond dissociation energy is likely the carbon-oxygen (C-O) bond.
The longest and weakest bond in citrate with the lowest bond dissociation energy, consider the trends in atomic radii on the periodic table.
As you move across the periodic table from left to right, atomic radii generally decrease due to the increase in the effective nuclear charge. Meanwhile, as you move down a group on the periodic table, atomic radii increase because additional electron shells are being added.

In the case of citrate, the longest and weakest bond would be the one involving elements with the largest atomic radii. Larger atomic radii generally correspond to weaker bonds and lower bond dissociation energy because the electrons are farther from the nucleus, making them less strongly attracted to the protons in the nucleus.
Taking these trends into account, the bond in citrate that is the longest and weakest with the lowest bond dissociation energy is the bond between two elements with the largest atomic radii involved in the molecule.

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The false statement is Option (d)

d) Suppose you were 60ft beneath the surface of ocean scuba diving and took a deep breath of air from your tank and held your breath. It is a good idea to start ascending without exhaling.

If you hold your breath while ascending to the surface, your lungs and the air within them expands as the water pressure weakens. since the air has no place to get out it will be pressurized between the wall of the lungs. It gets keep on swelling between the walls of the lungs .

Frequent changes in the pressure of the air which is present in the walls of the lungs during the ascending or descending without exhaling can cause a serious lung injury.

When a scuba diver descends to deeper depths in the oceans he has to breathe air through a device the compressed air consists of 71% nitrogen and 28% oxygen.

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Answer:

Neutral

Explanation:

Neutralization reaction gets its name from the fact that the products of the reaction are _____.

neutral

Answer: I believe it would be B. Genus

Explanation:

I looked up the definitions for you and genus is defined as the group above species. Picture of definition attached.

The functional group found in methanol is as follows: R single bond OH (R-OH). Details about methanol can be found below.

A functional group is a specific grouping of elements that is specific to a class of compounds, and determines the chemical properties of that class.

Each hydrocarbon or organic compound have a specific functional group characteristics of its group.

Alcohol (OH) is the functional group of certain organic compounds like methanol, ethanol etc. Therefore, the functional group found in methanol is as follows: R single bond OH (R-OH).

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Answer:

R single bond O single bond R.

Single bond N H Subscript 2

Single bond O H.

R single bond X.

Explanation:

The activation energy of the reaction is approximately 71.46 kJ/mol, rounded to 2 decimal places.

To find the activation energy (Ea) of the reaction, we can use the Arrhenius equation, which relates the rate constant (k) to the temperature (T) and activation energy. The Arrhenius equation is given by:

k = A * e^(-Ea/RT)

Where:

k is the rate constant

A is the pre-exponential factor (frequency factor)

Ea is the activation energy

R is the gas constant (8.314 J/(mol·K))

T is the temperature in Kelvin

We have two sets of data:

At 600 K, k1 = 3.4 m^(-1)s^(-1)

At 750 K, k2 = 31.0 m^(-1)s^(-1)

Taking the natural logarithm (ln) of both sides of the Arrhenius equation, we can rearrange the equation to solve for the activation energy:

ln(k) = ln(A) - (Ea/RT)

We can create two equations using the given data:

ln(k1) = ln(A) - (Ea/(R * 600))

ln(k2) = ln(A) - (Ea/(R * 750))

Subtracting the second equation from the first eliminates the ln(A) term:

ln(k1) - ln(k2) = (Ea/R) * ((1/600) - (1/750))

Simplifying further:

ln(k1/k2) = (Ea/R) * ((750 - 600) / (600 * 750))

Now we can solve for Ea:

Ea = (R * (ln(k1/k2))) / ((750 - 600) / (600 * 750))

Using the given values and the appropriate units:

Ea = (8.314 J/(mol·K) * ln(3.4/31.0)) / ((750 - 600) / (600 * 750))

Converting the units from J to kJ:

Ea = (8.314 × 10^(-3) kJ/(mol·K) * ln(3.4/31.0)) / ((750 - 600) / (600 * 750))

Ea ≈ 71.46 kJ/mol

Therefore, the activation energy of the reaction is approximately 71.46 kJ/mol, rounded to 2 decimal places.

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Answer:

hola no ablo inalgun moderador puede acabar a este otro este me borró respuesta que no debió borrar

In order to find a name of a Hydrocarbon molecule, we need to look for the main carbon chain first, this will be the chain with the highest number of carbon atoms, and in this molecule, we have 4 carbon atoms, therefore we have a 4 carbon molecule, the prefix for this type of molecule is But.

We also have a triple bond in the first carbon, the suffix for triple bonds is "yne"

Therefore, if we add all these informations, we will have 1-butyne, letter A

The frequency of the photon of light is 4.4 * 10¹⁶ Hz

Where h is Planck's constant = 6.626 * 10⁻³⁴

f is frequency

E = energy

making f subject of the formula

f = E/h

f = 2.95 × 10⁻¹⁷/6.626 * 10⁻³⁴

f = 4.4 * 10¹⁶ Hz

Therefore, the frequency of the photon of light is 4.4 * 10¹⁶ Hz

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Answer:

16

Explanation:

2 per molecule X 8 molecules in total

Answer:

there it is fella tried on ma own consciousness

Answer:

Reasons water is important

Imagine earth without water. The soil, with no water in it and nothing growing on it, would be lifeless, dead, collapsed into dust, sand, clay or rock.

-Water consumption helps lubricate and cushion your joints, spinal cord, and tissues. This will help you enjoy physical activity and lessen discomfort caused by conditions like arthritis.

-Water is a main component of saliva. Saliva also includes small amounts of electrolytes, mucus, and enzymes. It’s essential for breaking down solid food and keeping your mouth healthy.

The pH of the solution is 7.

The hydrogen ion concentration of a solution with a given pH can be calculated using the following equation:

[H+] = 10^(-pH)

Where [H+] is the hydrogen ion concentration in moles per liter (M) and pH is the pH of the solution.

For example, if the pH of a solution is 4, the hydrogen ion concentration would be:

[H+] = 10^(-4)

[H+] = 0.0001 M

Therefore, the hydrogen ion concentration of a solution with a pH of 4 is 0.0001 M.

Similarly, if the pH of a solution is 7, the hydrogen ion concentration would be:

[H+] = 10^(-7)

[H+] = 0.0000001 M

Therefore, the hydrogen ion concentration of a solution with a pH of 7 is 0.0000001 M.

In general, the lower the pH of a solution, the higher the hydrogen ion concentration and the more acidic the solution is. Conversely, the higher the pH of a solution, the lower the hydrogen ion concentration and the more basic the solution is.

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Work is entropy free and it does transfer entropy but the claim is not valid, the entropy of a fluid passing through an adiabatic steady state system with a single outlet and inlet can change due to irreversibilities present in the system during the process.

What is entropy?

Why doesn't entropy change when there is a work transfer?

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The krypton-83 isotopes below is formed when rubidium-83 undergoes electron capture.

What is isotopes?

isotopes are defined as atoms with a constant number of protons but a variable number of neutrons. Despite having different masses and hence having different physical qualities, they have nearly identical chemical properties.

What is stable nuclide?

Since stable nuclides are not radioactive, they do not spontaneously decay into radioactive elements as happens with radionuclides. They are commonly referred to as stable isotopes when such nuclides are discussed in connection to particular elements.

The electron capture process will turn rubidium-83 into krypton-83. When a proton in the nucleus catches an inner electron and creates a neutron, this process is known as electron capture.

Therefore, krypton-83 isotopes below is formed when rubidium-83 undergoes electron capture.

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Explanation:

The given compound is:  

       AlCl₃

A cation is the positively charge specie and the anion is the negatively charged one.

              Al³⁺  + 3Cl⁻ → AlCl₃

Explanation:

thermal changes are those in which heat exchange is involved like endothermic and exothermic

while in chemical changes collision between the reactant occurs which result into product

Answer:

Brainliest pls

Explanation:

Although the information for the trial was not given, we can offer a summed-up reply in that while playing out an analysis to accomplish outright zero temperatures, the worth won't ever match the specific worth.

What is absolute zero?

Absolute zero is the lower furthest reaches of temperature. Considered the coldest conceivable temperature that can exist. Nonetheless, any endeavor to arrive at this temperature in a controlled climate has fizzled, researchers don't think reproducing this temperature is conceivable.

In this way, we can affirm that the worth of indisputably the zero tests didn't match the acknowledged worth. Assuming the speculation was that it would be troublesome or difficult to accomplish, then the information would uphold the theory, if not, it would neglect to do as such.

In outline, outright zero is a temperature that can't be reproduced in a lab, so the worth in this analysis doesn't match the acknowledged worth and there could be no further investigation to be done on this.

moles of C2H5OH are needed to generate 106.7 g of H2O IS 1.975 g

A mole is simply a number whose price is the same as Avagadro's variety i.e. 6.022 * 1023. 1 mole in quantity,

balancing chemical equation:-

C2H5OH(ℓ) + 3 O2(g) → 2 CO2(g) + 3 H2O(ℓ) balanced

1mole of C2H5OH(ℓ) produces = 3 mole of water

                                                    = 3*18 (mass of 1 mole of water is 18)  

                                                   = 54 g  

54g of h20 needed=1mole of C2H5OH

106.7 g of h20=106.7/54 g

                   = 1.975 g answer

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