How do acid and base react with each other reaction?

Identify the main organs of the brain that are responsible in control the following activities:

The medulla oblongata is the lowest part of the brainstem which is directly connected to the spinal cord. This part of the brainstem controls autonomic functions of the body such as breathing, heart rate, blood pressure, digestion, swallowing, and sneezing.

The main function of the cerebellum is to control movement. That's why damage or disruption to the cerebellum will result in disturbances in fine movement, balance, posture, and motor learning.

The temporal lobes are located on the sides and are responsible for processing information from the senses of smell, taste, and hearing. This part of the brain also has an important role in memory storage.

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If a sample of carvone gives a specific rotation of 0 ° and the specific rotation of pure R- carvone is -61 ° , the enantiomer is the unknown sample, the correct option is C. racemic mixture.

The carvone gives a specific rotation =  0 °

The  specific rotation of pure R- carvone =  -61 °

The racemic mixture is formed when an equal amount of mixture of the R enantiomer and the S enantiomer of the carvone is formed. In  racemic mixture, the R enantiomer rotates the plane polarized light in the one direction and the S enantiomer rotates the plane polarized light in the another direction.

It will cancels out the rotation . The  each enantiomer equal in magnitude but opposite in the direction and have specific rotation of 0 ° for the racemic mixture.

This question is incomplete, the complete question is :

If a sample of carvone gives a specific rotation of 0 and the specific rotation of pure R- carvone is -61, which enantiomer is the unknown sample?

A. R

B. S

C. Racemic

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After completing the task experiment, the velocity of the cart does not change is referred to as a true statement.

This is referred to as the rate of change of the object's position with respect to a frame of reference and time.

Since we were told that the experiment had been completed , then we can assume that the cart is at a state of rest which therefore means that there will be no change in its velocity and is therefore the reason why true was chosen as the correct choice.

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Considering the least stable object in the figure above, hydrogenation requires greater heat. B>A>C>D is the order in which heat evolved.

When hydrogen molecules are utilized to saturate organic compounds, the process is known as hydrogenation. Regardless of the type of hydrocarbon, this process works best under specific catalytic conditions and under controlled temperatures.

Introduction. Processes like hydrogenation are an illustration of just an alkene addition reaction. An alkene undergoes a hydrogenation reaction, which produces a saturated alkane by adding two hydrogen atoms across the double bond.

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The mole ratio of hydrogen to water in the given balanced chemical equation is 2:2.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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We can calculate the concentration by using Molar formula. So we can conclude that the concentration of bam's solution in units of g solute/100 g solvent  is  1,3043 Molar.

In the term of chemistry, concentration generally can be defined as the abundance of a constituent divided by the total volume of a mixture.

If Bam added 8,05 g of CsCl to 36,66 ml of [tex]H_2O[/tex], so we can calculate the concentration with formula:

M = [tex]\frac{mass of solute}{Mr solute}x\frac{1000}{volume solvent in ml}[/tex]

M (concentration) of solute in  g solute/100 g solvent = [tex]\frac{8,05 g}{168.36 g/mol} x\frac{1000}{36,66 ml}[/tex]

M (concentration) of solute in  g solute/100 g solvent = 1,3043 Molar

So we can conclude that he concentration of bam's solution in units of g solute/100 g solvent is  1,3043 Molar.

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The temperatures between two items are falling as the energy of something like the two blocks ceases to move.

Temperature is a unit used to represent hotness or coolness on any of a number of scales, includes Fahrenheit as well as Celsius. The direction of spontaneous heat transfer from either a region of high temperature with a temperature higher to a cooler body is indicated by temperature.

The three temperature scales that are now in use are Kelvin, Celsius, and Fahrenheit. The Fahrenheit temperature scale divides the distance between the temperature of water, 32, and the normal boiling of water, 212, into 180 parts.

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The solution is the homogenous mixture that contains the two or more substances. The Solutions contain a solvent and a solute.

The substances that is dissolve is called as the solute. The substance that dissolve the substance is called as the solvent. The solution is the homogeneous mixture. The everyday example of the homogeneous mixture is as follows :

coffee or tea

1) The sweet tea or the  coffee (sugar is added to the solution)

2) The  juices

3) The  saltwater

4) The bleach in which the sodium hypochlorite dissolved in water.

5) The carbonated beverages in which the carbon dioxide is dissolved in the water.

6) The powdered drinks

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Alkenes are useful in the production of polymers. They create polymers when smaller molecules are arranged end to end. The smallest molecules are known as monomers. The polymer's tensile strength grows as chain length and cross-linking do.

A monomer is a molecule from a group of substances, primarily organic compounds, that can combine with other molecules to produce much larger molecules, or polymers. A monomer's ability to create chemical interactions with at least two other monomer molecules, known as polyfunctionality, is its primary characteristic.

Monomers include substances like ethylene, amino acids, vinyl chloride, and glucose. Each monomer has a different manner of linking to create a variety of polymers.

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There are 1.806 x 1024 Cl- ions in 400.5 grams of AlCl3.

AlCl3 has an Avogadro number of 6.022 x 1023 molecules per 400.5 grams. AlCl3 molecules each contain three Cl- ions. Avogadro's number can therefore be multiplied by three to determine how many Cl- ions are present in 400.5 grams of AlCl3. We get about 1.806 x 1024 Cl- ions as a result. Since they are evenly distributed throughout the 400.5 grams of AlCl3, it is possible to determine their concentration by dividing the total number of ions by the volume of the solution.

A molecule is a smallest unit of a chemical substance that still retains its chemical properties. It is made up of two or more atoms that are chemically bonded together. The atoms in a molecule can be the same or different elements.

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Answer:

he heat generated when water reacts in contact with the cement powder

Explanation:

430 mL of water is found in a 455 mL bottle of vinegar.

The bottle of vinegar is labeled as 5.00% solution of acetic acid, meaning that 5% of the solution is acetic acid and the rest is water.

To find the amount of water in the bottle, we can subtract the portion that is acetic acid from the total volume.

This can be done by multiplying the volume of the bottle by the percentage of acetic acid, and then subtracting this result from the total volume:

Volume of water = Total volume - (Total volume * % acetic acid)

Volume of water = 455 mL - (455 mL * 5%) = 455 mL - (455 mL * 0.05) = 455 mL - 22.75 mL = 432.25 mL

So, there is approximately 432.25 mL of water in a 455 mL bottle of vinegar.

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In reaction, the temperature in the troposphere falls with height.

In essence, the atmosphere is a shield of gases that protects all life on Earth by keeping temperatures within a narrow range and obstructing the sun's damaging rays. In essence, there is no distinction between the atmosphere and the outside world. The five separate layers of the atmosphere are created by the variations in temperature that occur with height. Following is a list of the five different layers:

Exosphere, Thermosphere, Mesosphere, Stratosphere, Troposphere

The troposphere, which starts at the ground and rises to an altitude of roughly 10 kilometres above sea level, is the lowest layer of the atmosphere. It makes up 75% of the atmosphere's total air. The atmosphere distributes itself according to gravity, thus generally speaking, the temperature drops as you go up in height. With height, temperatures in the troposphere drop. This is due to the gas's low solar radiation absorption rate. Additionally, the ground takes in this radiation and heats the atmosphere through conduction and convection.

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Ammonium chloride (NH4Cl), also known as 'sal ammoniac', is a salt of ammonia and hydrogen chloride. Its most common applications are as a nitrogen source in fertilisers and as an electrolyte in dry cells.

What are the uses of Ammonium chloride (NH4Cl)?

Ammonium chloride (NH4Cl) has several uses, including:

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The bond angle assigned to molecular geometry is based upon the positions of the bonded atoms in the molecule and the arrangements of the bonds between them, including both sigma and pi bonds.

What are Sigma bonds?

Sigma bonds are formed by the overlapping of atomic orbitals along the internuclear axis and are stronger and more directional than pi bonds. Pi bonds are formed by the lateral overlap of p orbitals and are weaker and less directional than sigma bonds.

In molecular geometry, the bond angles are determined by the arrangement of the sigma and pi bonds in the molecule. For example, the bond angles in a molecule with a trigonal planar geometry, such as BF3, are determined by the arrangement of the three sigma bonds between the central atom and the peripheral atoms. In a molecule with a tetrahedral geometry, such as CH4, the bond angles are determined by the arrangement of the four sigma bonds between the central atom and the peripheral atoms.

In general, the bond angles in a molecule are influenced by both the arrangement of the sigma and pi bonds and the electronic properties of the bonded atoms, such as their electron configuration and the hybridization of their orbitals.

The bond angle assigned to the molecular geometry is an important factor in determining the physical and chemical properties of a molecule, such as its reactivity, stability, and reactivity.

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To make 500.0 mL of a 1.30 M solution of KBr, you need to determine the number of moles of KBr that would be required, and then convert that number to grams.

The number of moles of KBr can be determined using the formula:

moles = concentration (M) * volume (L)

where the volume is in liters and the concentration is in moles/liter.

For this case, we have:

moles = 1.30 M * 0.500 L = 0.650 moles

Finally, to determine the number of grams of KBr needed, we can use the formula:

grams = moles * molar mass

where the molar mass of KBr is 119.0 g/mol.

For this case, we have:

grams = 0.650 moles * 119.0 g/mol = 77.35 g

Therefore, 77.35 g of KBr should be used to make 500.0 mL of a 1.30 M solution of KBr.

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Mass of sulfur is 3.45g. Mole, often abbreviated as mol, is a commonly used unit of measurement in chemistry.

Mole, often abbreviated as mol, is a commonly used unit of measurement in chemistry for vast amounts of tiny objects like molecule, atoms, or other specific particles. In addition, starting on May 20, 2019, the General Conference on Measures and Weights declared the mole as the quantity of the International System of Units. Additionally, practically all compounds have the same amount of additional particles or atoms in a mole.

2 Al + 3S [tex]\rightarrow[/tex] Al[tex]_2[/tex]S[tex]_3[/tex]

moles of Al[tex]_2[/tex]S[tex]_3[/tex]=5.53/150.16=0.036moles

The mole ratio between sulfur and  Al[tex]_2[/tex]S[tex]_3[/tex] is 3:1

moles of sulfur= 3× 0.036=0.108moles

mass of sulfur= 0.108×32=3.45g

Therefore, mass of sulfur is 3.45g.

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The structure shown in the question is of a polysome.

The polysome is a structure that is formed in the prokaryotes when it's genes are being transcribed. As the transcription progress the mRNA that is being synthesised are acted by ribosomes simultaneously and protein synthesis starts. Many ribosomes can bind to the mRNA simultaneously making a polysome.

This process is not possible in eukaryotes as the process of transcription occurs in the nucleus and the process of translation occurs in the cytoplasm. The mRNA synthesized by transcription has to travel out of the nucleus for being translated. Therefore ribosomes cannot bind the mRNA while it is being synthesized.

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The proper waste container/area will be:

Solid waste;

Sink

Glass waste;

We must keep in mind that waste refers to a substance that is no longer in use. while we are discussing a waste. We refer to items that we will eventually discard or that we won't be able to put out.

The waste can then be separated according to the type of waste that it is, as demonstrated above.

Your question is incomplete but most probably your full question was

Sort the following into the proper waste container/area. Solid Waste Container Liquid Waste Container Glass Waste Container Trash Sink used filter paper acetone rinse broken waterless condenser leftover water from ice bath leftover starting material reaction filtrate melting point tube

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Enantiomers differ in biological activity, So correct option is c.

It means that they have the same number of atoms of each element, but the atoms are arranged differently in the molecule. Structural isomers have a different connectivity of their atoms, meaning that the bonds between the atoms are different. Stereoisomers, on the other hand, have the same connectivity but differ in the spatial arrangement of their atoms. Stereoisomers can be further divided into two categories: geometric isomers and optical isomers. Geometric isomers differ in the arrangement of their atoms in space, whereas optical isomers, also known as enantiomers, are mirror images of each other that are not superimposable.

Enantiomers are a type of isomer that are mirror images of each other but not superimposable. They have the same molecular formula and connectivity but differ in the arrangement of their atoms in three-dimensional space, leading to differences in their biological activity. Structural isomers differ in the order of attachment of the atoms in a molecule and can also have different biological activities, while cis-trans isomers differ in the arrangement of functional groups in a molecule around a double bond, which can affect its physical and biological properties.

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The mass of KBr needed to prepare 100 mL of a 1.5M KBr solution can be calculated using the formula: mass = concentration * volume * molecular weight.

So, the required mass would be 1.5 mol/L * 0.1 L * 119 g/mol = 178.5 g. So, the answer is C- 178.5 g KBr.

The molarity of the KBr answer that desires to be organized is 1.Five M. Molarity is defined as the wide variety of moles of solute in line with liter of answer. In this situation, we need to put together one hundred mL of answer, so the number of moles of KBr required may be calculated as follows:

Moles = molarity * volume (in liters)

Moles = 1.5 M * 0.100 L = zero.15 moles

Once the wide variety of moles of KBr is decided, we will then use the formulation weight of KBr to calculate the mass of KBr needed to prepare 100 mL of one.5M KBr solution.

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There are 8.25 x [tex]10^{22}[/tex] atoms per cubic centimeter of solid Cr.

First, find the number of moles of Cr per cubic centimeter by using the density of Cr The formula for density is:

density = mass/volume

Now, by rearranging this formula to find the mass, and then use the molar mass of Cr to find the no. of moles:

mass = density x volume

moles = mass / molar mass

The volume of 1 cubic centimeter = [tex]1 cm^3[/tex].

The molar mass of Cr is 51.9961 g/mol.

So,

mass = [tex]7.15 g/cm^3[/tex] x [tex]1 cm^3[/tex] = 7.15 g

moles = 7.15 g / 51.9961 g/mol = 0.1373 mol

Next, we can find the number of atoms per mole of Cr. One mole of Cr contains Avogadro's number of atoms, which is 6.022 x [tex]10^{23}[/tex] atoms/mol. So,

number of atoms = Avogadro's number x moles

= 6.022 x [tex]10^{23}[/tex] atoms/mol x 0.1373 mol

= 8.25 x [tex]10^{22}[/tex] atoms

Therefore, there are 8.25 x [tex]10^{22}[/tex] atoms per cubic centimeter of solid Cr.

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1. Calculate the required mass of ammonia:

Mass of ammonia = (0.3 g/100 mL) * (1000 mL) = 30 g

2. Calculate the volume of 2 M ammonia solution required to make 0.3% solution:

Volume of 2 M ammonia solution = (30 g/14 g/mL) = 2.14 mL

3. Calculate the volume of methanol required:

Volume of methanol = (1000 mL) - (2.14 mL) = 997.86 mL

4. Prepare the solution:

Add 2.14 mL of 2 M ammonia solution in 997.86 mL of methanol. Stir the solution until homogeneous. The solution is ready for use.

What is solution?

A solution is a homogeneous mixture composed of two or more substances. In a solution, the solute is dissolved in the solvent. Solutions are formed when the molecules of the solute separate from each other and spread out evenly throughout the solvent. Examples of solutions include salt water, rubbing alcohol, and sugar dissolved in water.

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Oil spills that happen in rivers, bays and the ocean most often are caused by accidents involving tankers, barges, pipelines, refineries, drilling rigs and storage facilities, but also occur from recreational boats and in marinas.

Spills can be caused by:

people making mistakes or being careless

equipment breaking down

natural disasters such as hurricanes, storm surge or high winds

deliberate acts by terrorists, acts of war, vandals or illegal dumping.

Most oils float on the oceans’ saltwater or freshwater from rivers and lakes. Oil usually spreads out rapidly across the water’s surface to form a thin oil slick. As the oil continues spreading, the slick becomes thinner and thinner, finally becoming a very thin sheen, which often looks like a rainbow. (In rare cases, very heavy oil can sometimes sink.)

Depending on the circumstances, oil spills can be very harmful to marine birds, sea turtles and mammals, and also can harm fish and shellfish. Oil destroys the insulating ability of fur-bearing mammals, such as sea otters, and the water-repelling abilities of a bird's feathers, exposing them to the harsh elements. Many birds and animals also swallow oil and are poisoned when they try to clean themselves or when eating oiled prey.

Fish and shellfish can also digest oil, which could cause changes in reproduction, growth rates or even death. Commercially important species such as oysters, shrimp, mahi-mahi, grouper, swordfish and tuna also could suffer population declines or become too contaminated to be safely caught and eaten.

Depending on just where and when a spill happens, from a few up to hundreds or thousands of birds, fish, mammals, reptiles, corals and other animals and plants can be killed or injured.

The natural processes injecting particulate matter into the atmosphere are Volcanic Eruption, Dust Storms, Forest Fires, Sea Spray, Biomass Burning, and Biogenic Emissions

There are several natural processes that can inject particulate matter into the atmosphere, including:

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The name of the element is Arsenic (As). Atomic number of arsenic is 33 and its mass number is 77.

Atomic number is defined as the number of a chemical element located in the periodic system, where the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the total number of electrons in the neutral atom, is also known as the atomic number.

Mass number is defined as the the total number of protons and neutrons present in an atom. Mass number can be calculated by adding the number of neutrons and the number of protons (atomic number) together.

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The answer to the questions are given below;

1. Cleopatra was famous for taking a bath in camel's milk to help her keep her beauty.

2. The German lady stole a camel because she wanted to be a modern Cleopatra. / The German lady stole a camel because she wanted to be the same as Cleopatra.

3. She felt disappointed because the camel turned out to be a male that can't produce milk.

In the text, it is stated that Queen Cleopatra bathed in camel's milk to help her keep her beauty and a German lady tried replicate this, but she stole a male camel.

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Answer:

49.63 grams of CO2 is produced from the reaction of 3 moles of CO2 and 4 moles of Fe. Therefore, 4 moles of Fe is produced, which is equal to 192.16 grams of Fe.

Answer:49.63 grams of CO2...  the girl on top is correct

Explanation:

Assuming complete combustion, the mass of carbon dioxide that's produced in the reaction would be 132 grams.

Combustion is a chemical reaction that involves the complete oxidation of the hydrocarbon. These reactions usually release carbon dioxide and water as products.

Combustion of methane or CH₄ can be written as follows:

 CH₄ + 2 O₂ -> CO₂ + 2 H₂O

Based on the question, the amount of methane is 48 g.

That means, in that reaction, 16 grams of methane produces 44 grams of carbon dioxide.

Therefore, 48 grams of methane would produce:

  (44 / 16) * 48

= 132 grams

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A. 1. Benzonitrile 2. p-methylbenzonitrile 3. p-methoxybenzonitrile

B. o-bromotoluene >  bromobenzene > bromochlorobenzene

Alkyl,-OR,-NH2, and other activation groups on benzophenone make it more responsive to electrophilic substitution.

These are all electron density donating groups which will increase the electron density of the whole compound

Deactivating groups in benzene, such as halide, -CN, and -CHO, make it less reactive to electrophilic substitution.

These are all electron density  withdrawing  groups which will decrease the electron density of the whole compound

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