Where is DNA found?

a. cell membrane

b. vacuole

c. chromosomes

d. Golgi body

Answer:

Explanation:

Is that the question

Answer:

If it's between human and tennis ball, human and dog, human and building, human and earth.

It would be HUMAN AND EARTH

Explanation:

I took the test and got that.

shell3=2×3^2=18

shell one =2

shell 2=8

2+8+18=28

28 electron all together one the 3rd shell

35-28=7

7 electrons on the 4th shell

In bromine's n=4 shell, we have a a total of 2 + 5 = 7 electrons.

In bromine's (atomic number 35) electron configuration, the next outer shell after the third shell (n=3) is the fourth shell (n=4).

We will subtract the total number of electrons in the previous shells, in order to determine the number of electrons in the n=4 shell

The electron configuration of bromine (Br) is:

\(1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5\)

We then count the electrons in the n=4 shell, we consider the electrons in the 4s and 4p subshells.

In the 4s subshell, we have  2 electrons (\(4s^2\)).

In the 4p subshell, there are 5 electrons (\(4p^5\)).

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The amount of NaOH produced when 20.0 g of Na(s) reacts with excess oxygen is 38.4 grams.

To find the amount of NaOH produced when 20.0 g of Na reacts, we first need to convert the mass of Na to moles using the molar mass of Na, which is 22.99 g/mol.

Number of moles of Na = 20.0 g / 22.99 g/mol = 0.870 mol

Since the balanced equation shows that 2 moles of Na react to produce 2 moles of NaOH, we can use stoichiometry to find the number of moles of NaOH produced.

Number of moles of NaOH = 0.870 mol Na x (2 mol NaOH/2 mol Na) = 0.870 mol NaOH

Now, we can convert the number of moles of NaOH to grams using the molar mass of NaOH, which is 40.00 g/mol.

Mass of NaOH produced = 0.870 mol NaOH x 40.00 g/mol = 34.8 g

Therefore, 34.8 grams of NaOH are produced when 20.0 g of Na(s) react with excess oxygen.

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The density of that substance will always be the same. if you cut the object into a million pieces, they would still each have the same density.

Because a material that dilates takes up a larger volume, its density decreases. This occurrence occurs in pieces in all forms of matter: for example, solids, liquids, and gases. The size, mass, and disposition of atoms affect the density of a substance.

The density of an object can convert if either the mass or volume of the object is changed. This means that the density of the general object will decrease and be more likely to float.

So we can conclude that The density of a liquid is a computation of how heavy it is for the amount measured.

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The molecular formula of Ascorbic acid is C6H8O6 having the molar mass of 176.14 g/ mole.

Ascorbic acid is known as the chemical name for Vitamin C. Ascorbic acid is commonly found in high concentrations in citrus fruit. This acid is also found in tomatoes, broccoli, and many other fruits and vegetables. Vitamin C is a nutrient of the body needs to form blood vessels, cartilage, muscle and collagen in bones. This vitamin is also vital to the body's healing process.

A molecular formula is defined as a chemical formula of a molecular compound that shows the kinds and numbers of atoms present in a molecule of the compound. This is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule using chemical element symbols and numbers.

A molecule of the ascorbic acid will have a mass of 176.124 atomic mass units.

This is determined by adding 6 X 12.011 for carbon + 8 X 1.008 for hydrogen + 6 X 15.999 for oxygen.

This is equals to the 72.066 for carbon + 8.064 for hydrogen + 95.994 for oxygen. Added together, these equal 176.124 molecular mass.

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The final electron acceptor in aerobic respiration is oxygen (O2).The electron transport chain (ETC) in cellular respiration relies on a final electron acceptor to help oxygen get reduced into water. This is why oxygen is considered the final electron acceptor in cellular respiration.

During cellular respiration, glucose is broken down into pyruvate. Pyruvate is then transformed into acetyl CoA and enters the citric acid cycle, where it is oxidized and generates ATP, NADH, and FADH2. The final stage of aerobic respiration involves the electron transport chain, in which electrons from NADH and FADH2 are passed through a series of proteins and coenzymes in the inner mitochondrial membrane, ultimately reducing oxygen to form water.

This process is known as oxidative phosphorylation.In conclusion, the final electron acceptor in aerobic respiration is oxygen (O2), and carbon dioxide is generated in the link reaction (pyruvate oxidation) and the citric acid cycle.

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Answer:

hemoglobin to become bicarbonate

Explanation:

When carbon dioxide enters the blood it combines with hemoglobin to form carbamino hemoglobin or carboxyhemoglobin but most of it becomes carbonate ions and diffuse into the blood plasma.

Hemoglobin is a blood protein giving red colour to the blood. It helps to transport oxygen everywhere. When oxygen fills in the air sack, it combines with oxygen and form oxyhemoglobin.

However, hemoglobin have more affinity towards carbon dioxide and and they combines to form carbaminohemoglobin which prevents the transportation of oxygen through blood.

The carbon dioxide will be converted into carbonic acid by combining with water. This acid then forms its carbonate ions and these ions helps to maintain the blood pH to be constant.The carbonate ions, CO₃²⁻can easily diffuse into blood plasma.

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A) The differential equation is dy/dt = (3/50) * 5 - (y/50) * 5.

B) Equilibrium point: y = 30g. It represents the steady-state chlorine concentration where the inflow rate matches the outflow rate.

C) The chlorine amount will approach and stabilize at 30g. No net change occurs as the inflow matches the outflow.

In part A, we are given the information about the rate at which clean water with chlorine is flowing into the drum and being pumped out to maintain the liquid level. The differential equation dy/dt = (3/50) * 5 - (y/50) * 5 models the rate at which chlorine accumulates in the drum over time. The first term represents the inflow rate of chlorine, and the second term represents the outflow rate. By subtracting the outflow rate from the inflow rate, we get the net rate of accumulation of chlorine in the drum.

In part B, we find the equilibrium point(s) by setting the rate of accumulation (dy/dt) to zero and solving for y. The equation (3/50) * 5 - (y/50) * 5 = 0 simplifies to 3 - y/10 = 0, and solving this equation gives y = 30. This means that when the concentration of chlorine in the drum reaches 30 grams, the inflow rate of chlorine matches the outflow rate, resulting in a steady-state concentration.

The practical meaning of this equilibrium value is that the drum will maintain a constant chlorine concentration of 30 grams in the long run, as long as the inflow and outflow rates remain unchanged.

In part C, using the concept of a phase line, we can expect that the amount of chlorine in the tank will approach and stabilize at the equilibrium value of 30 grams in the long run. Since the inflow rate of chlorine is balanced by the outflow rate, there will be no net change in the concentration over time. The system will reach a stable state where the chlorine concentration remains constant. Thus, the chlorine amount will remain at 30 grams indefinitely.

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Answer : The volume of kristas rock is 30 mL.

Explanation :

From the given image we conclude that:

Initial volume of liquid = 150 mL

Final volume of liquid = 180 mL

Now we have to determine the volume of kristas rock.

Volume of kristas rock = Final volume of liquid - Initial volume of liquid

Volume of kristas rock = 180 mL - 150 mL

Volume of kristas rock = 30 mL

Therefore, the volume of kristas rock is 30 mL.

The complete biological unit required for the reaction is called a holoenzyme.

A holoenzyme is an active enzyme consisting of both the protein part (called the apoenzyme) and the non-protein components, which can be cofactors or coenzymes.

In this case, the particular oxidoreductase requires FAD (flavin adenine dinucleotide) as an essential component for its activity. FAD serves as a coenzyme, helping the enzyme to carry out its function by facilitating the redox reaction.

These proteins are involved in a variety of cellular processes, including oxidation-reduction reactions, electron transport, and metabolism.
To sum up, the complete biological unit required for the reaction involving the particular oxidoreductase and FAD is known as a holoenzyme, which consists of the apoenzyme and the coenzyme FAD.

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Total heat generated by 2 mole of TiO2(s) is 4.963kJ.

The amount of heat released in the reaction of 2.89 mol of TiO2(s) can be calculated using the following equation: q = nCΔT, where n is the number of moles, C is the specific heat capacity of TiO2, and ΔT is the change in temperature.

The specific heat capacity of TiO2 is 683. 697. J/kgK. and the change in temperature is is 25k. By plugging in the values and converting J to kJ,

q = 2.89 * 25 * 683.697

=> 4963.35

In brief, the amount of heat released by 2.89 mol of TiO2(s) is 4.963kJ.

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Complete question :

determine how much heat (in kj) of 2.89 mol of tio2(s) with a temperature difference of 25k

In the given reaction, nickel (Ni) has been oxidized while bromine (Br2) has been reduced.

In the given reaction, nickel (Ni) has been oxidized while bromine (Br2) has been reduced because nickel has lost electrons while bromine has gained electrons.

The oxidizing agent in the reaction is bromine (Br2) because it has gained electrons, which means it has undergone reduction. Bromine has a higher electronegativity than nickel, which allows it to pull electrons away from nickel and cause it to undergo oxidation.

The reducing agent in the reaction is nickel (Ni) because it has lost electrons, which means it has undergone oxidation. Nickel has a lower electronegativity than bromine, which makes it more likely to lose electrons and undergo oxidation.

Overall, the reaction represents a redox reaction, where one species (nickel) loses electrons and undergoes oxidation while the other species (bromine) gains electrons and undergoes reduction. This is an important process in many chemical reactions, including combustion, rusting, and many biological processes.

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From the rate law, the information that is given by the rate constant is: C. It tells how much the reaction rate is affected by activation energy.

Rate law is also referred to as rate equation and it can be defined as a chemical equation that is typically used to relate the initial (forward) chemical reaction rate with respect to the concentrations or pressures of the chemical reactants and constant parameters.

Mathematically, the rate law is given by this formula:

\(R = k[A]^x[B]^y\)

Where:

In Chemistry, the rate constant is typically used to tell the reaction rate or rate of a chemical reaction that is affected by activation energy.

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800cm x 6.45 s =51600 cm s will be the conversion value  after multiplying .

Unit conversion is a multi-step process that involves multiplication or division by a numerical factor to convert one unit into another form of unit .

Uses of conversion of unit -:

51600 cm s is the conversion value obtained after converting the units .

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If we added concentrated nitric acid (hno3) instead of hydrochloric acid to each test tube in step 7 Both NaCl(s) and NaC,H,O,(s) would precipitate out of solution.

Salt is another name for sodium chloride. It occurs in sea and inland waters. Additionally, rock salt is obtainable. Seawater contains 1% to 5% sodium chloride. It is a crystalline, white substance. When it is in an aqueous state, it is referred to as a saline solution. This substance is water soluble and contains sodium cation and chloride anion. Sodium and chloride ions are present in a 1:1 ratio. It is commonly known as table salt and is primarily used in the food industry for flavouring and preservation. The pH of sodium chloride is 7.

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0.1495 moles of Fe2O3 are formed when 16.7 g of Fe reacts completely with oxygen. The calculation is based on the balanced chemical equation.

The substance condition for the response among Fe and O2 is:

4Fe + 3O2 → 2Fe2O3

This condition lets us know that 4 moles of Fe respond with 3 moles of O2 to create 2 moles of Fe2O3. In this manner, the mole proportion of Fe to Fe2O3 is 4:2 or 2:1.

To work out the quantity of moles of Fe2O3 framed when 16.7 g of Fe responds totally with oxygen, we first need to change the given mass of Fe over completely to moles utilizing its molar mass:

molar mass of Fe = 55.845 g/mol

moles of Fe = 16.7 g/55.845 g/mol = 0.299 mol

Since the mole proportion of Fe to Fe2O3 is 2:1, the quantity of moles of Fe2O3 framed is a portion of the quantity of moles of Fe that responded:

moles of Fe2O3 = 0.299 mol/2 = 0.1495 mol

In this way, 0.1495 moles of Fe2O3 are framed when 16.7 g of Fe responds totally with oxygen. This computation shows that stoichiometry, the connection between the amounts of reactants and items in a substance response, is significant in deciding how much item framed.

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Answer:

His phraseology and his turns of invention are too empirically pseudoscientific for the simplicity of nature.

Answer:

Sodium bromide is a chemical combination of bromine and iodine while sodium iodide is made up of sodium and iodine,you can also look at the difference in terms of boiling and melting poins

Answer:

can only form one hydrogen bond each

Explanation:

can only form one hydrogen bond each

4.032 g of hydrogen are found in two moles of water.

In order to determine how many grams of hydrogen are found in two moles of water (H2O), we must use the following equation:

1 mole of H2O = 2 moles of hydrogen atoms = 2(1.008 g/mol) = 2.016 g of hydrogen.

Therefore, two moles of water, H2O, would contain 4.032 g of hydrogen.

The molecular formula of water is H2O, meaning there are two hydrogen atoms for every one oxygen atom.

The molar mass of hydrogen is 2.016, so for every mole of water, there are two moles of hydrogen.

By multiplying two moles of hydrogen (2 x 2.016) by the number of moles of water (2), the total amount of hydrogen in two moles of water is 4.032 grams.

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Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:

Cells from the air would have fallen into the sterilized growth medium in the flask and grown there if Pasteur had broken off the swan neck of the flask one week after boiling the nutrient broth to sterilize the flask.

He was referred to as a microbiologist who was responsible for many advances in science through experiments and an example is the one which was done using broth.

He heated the flask after it was sealed to kill microbes present in it and the result was nothing grew in the sample. However, if he had broken off the swan neck of the flask one week after boiling, cells from the air would have fallen into the sterilized growth medium in the flask and grown there.

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Cis- and trans-2-butene can both be hydrogenated to butane; thus their energies can be compared. the trans isomer releases less energy upon hydrogenation therefore cis-2-butene higher in energy.

The process of addition of hydrogen atom to another compound in the presence of catalyst such as nickel, cobalt etc. is termed as hydrogenation process.

As in trans- isomer, similar atoms or group of atoms are on opposite side. Due to which there is less repulsion between the atoms which results in more stability of trans isomer. On the other hand in cis- isomer, similar atoms or group of atoms are on same side, due to which there is more repulsion between the atoms which results in less stability of cis-isomer.

Due to more stability of trans- isomer less energy is released to add hydrogen to the trans butene as compared to cis butene for the formation of butane.

Thus we concluded that the trans isomer releases less energy than cis isomer in hydrogenation process.

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Answer:

A dunes windward side is the side where the wind is blowing and pushing material up. A dunes slip face is simply the side without wind. A slipface is usually smoother than a dunes windward side. A collection of dunes is called a dune belt or dune field.

Explanation:

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The compounds BaO, Fe₂O₃, ZnO, they all are ionic compounds.

Ionic compounds are compounds made up of positive and negative ions. Electrostatic forces hold them together. The following elements commonly form ionic compounds: nonmetals and metals, polyatomic ions, and transition metals.

Covalent compounds are compounds made up of two or more non-metallic elements. They join together by sharing electrons to achieve a stable electron configuration

BaO: Ba is a metal, while O is a nonmetal, therefore it's an ionic compound

Fe2O3: Fe is a metal, while O is a nonmetal, therefore it's an ionic compound

ZnO: Zn is a metal, while O is a nonmetal, therefore it's an ionic compound

Thus, all of the above compounds i.e. BaO, Fe₂O₃, ZnO are ionic compounds.

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Answer:

very reactive non metals

Explanation:

keep working on her class

Answer:

very reactive non metals

Explanation:

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In predicting molecular geometries, both unshared electron pairs and double bonds play crucial roles in determining the arrangement of atoms in a molecule.

a. Unshared electron pairs, also known as lone pairs or nonbonding electron pairs, refer to the electrons that are not involved in bonding between atoms. These electron pairs exert a significant influence on molecular geometry as they repel other electron pairs, including bonded electron pairs, creating regions of electron density around the central atom. According to VSEPR theory (Valence Shell Electron Pair Repulsion theory), the arrangement of these electron pairs and bonded electron pairs determines the shape of the molecule. The presence of unshared electron pairs affects bond angles and can lead to distortions in the idealized bond angles based on the number of bonded electron pairs. For example, in a molecule with one unshared electron pair, the bond angle might be smaller than the ideal angle due to the repulsion between the unshared pair and the bonded pairs.

b. Double bonds, on the other hand, involve the sharing of two pairs of electrons between two atoms. These double bonds influence molecular geometry by constraining the rotation and movement of atoms around them. The presence of a double bond introduces rigidity to the molecule, as the double bond prevents free rotation around the bond axis. Consequently, the atoms on either side of the double bond are fixed in position, affecting the overall shape of the molecule. For instance, a molecule with a double bond might exhibit a planar geometry or a bent geometry, depending on the number and arrangement of the other atoms or electron pairs in the molecule.

In summary, unshared electron pairs and double bonds both impact the molecular geometry of a compound. Unshared electron pairs contribute to the repulsion and affect bond angles, while double bonds introduce rigidity and limit the molecular flexibility, thereby influencing the arrangement of atoms in the molecule. Understanding the role of these factors is crucial for predicting and explaining the three-dimensional structure of molecules.

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Answer:

OJ.J. Thomson

Explanation: