If a piece of aluminum has a heat capacity of 314 j/°c, how much will its temperature rise when it absorbs 8,291 j of heat?

When two amino acid monomers are positioned so that the carboxyl group of one is adjacent to the amino group of the other, they can be joined through a reaction.

It is True.

Amino acid molecules make up proteins. Proteins and amino acids are essential to life. After proteins have been digested or broken down, amino acids are still present. To maintain the body, the human body makes proteins from amino acids: Prepare food.

Taking a supplement containing essential amino acids is wonderful because you can do so anytime you choose. While some athletes prefer to take it with meals or a protein shake, others prefer to take it on an empty stomach in between meals.

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Answer:Cutting, tearing, shattering, grinding, and mixing are further types of physical changes because they change the form but not the composition of a material. For example, mixing salt and pepper creates a new substance without changing the chemical makeup of either component.

Explanation:

you decide to test your pillbugs' preference for an acidic environment versus a nonacidic environment. on one side of the chamber you place filter paper moistened with water. Dry filter paper is appropriate to place on the other side to test this variable.

Armadillidiidae (Pillbugs) is a family of woodlice, a terrestrial crustacean group in the order Isopoda. Unlike members of some other woodlice families, members of this family can roll into a ball, an ability they share with the outwardly similar but unrelated pill millipedes and other animals. This ability gives woodlice in this family their common names of pill bugs or roly polies.Other common names include slaters, potato bugs, and doodle bugs. Most species are native to the Mediterranean Basin, while a few species have wider European distributions. The best-known species, Armadillidium vulgare, was introduced to New England in the early 19th century and has become widespread throughout North America.

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Answer:

noun. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. a region or area characterized by a given climate: to move to a warm climate.

Explanation:

Answer:

Explanation:Balance equation:

2 FeBr3 + 3 Na2S → Fe2S3 + 6 NaBr

Al(NO3)3 solution concentration and the concentration of H3O+ ions in the solution following the addition of HNO3 are given in the problem. We can determine the presence of [Al(H2O)5(OH)2+] in the solution using this knowledge along with the known equilibria for the hydrolysis of Al3+.

For Al3+, the hydrolysis process may be expressed as follows:

Al(H2O)63+ + water becomes Al(H2O)5(OH)2+ + H3O+.

The reaction's equilibrium constant expression is as follows:

Al(H2O)5(OH)2+) = K

Al(H2O)63+ / [H3O+]

We must take into account the dissociation of Al(NO3)3 in water in order to determine [Al(H2O)5(OH)2+] in a 0.15 M solution of Al(NO3)3:

Al3+ (aq) + 3NO3- Al(NO3)3 (s) (aq)

Al3+ has a concentration of 0.45 M (3 times that of the Al(NO3)3 solution) in an Al(NO3)3 solution with a concentration of 0.15 M. H3O+ is present in the solution at a concentration of 0.10 M.

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Answer:

4 enzymes responsible for digestion:

1. Salivary amylase ---- substrate: Starch ---- end-product: Maltose  

2. Lipase  ---- substrate: Lipids (fats and oils) ---- end-product: Fatty acids and glycerol

3. Maltase ---- substrate: Maltose ---- end-product: Glucose

4. Protease ---- substrate: Protein ---- end-product: Amino acids

Answer:

riding a bicycle or running!

Explanation:

You can not use energy driving! riding a bike is exercise and running is also♡

Hope it helped luv♡ ;)

A chemical property is a characteristic of a substance that is observed during a chemical reaction, as opposed to a physical property, which is a characteristic that can be observed without altering the substance's chemical makeup.

A detailed explanation:

Chemical properties describe how a substance reacts with other substances. For example, a substance's flammability, or its ability to burn, is a chemical property. Other examples of chemical properties include a substance's reactivity, toxicity, and acidity or basicity.

Chemical reactions involve changes in the chemical makeup of a substance, and these changes can often be observed through changes in color, temperature, or other physical properties. For example, when iron rusts, it changes from a shiny silver color to a dull red-brown color, indicating a change in the chemical makeup of the iron.

Chemical properties can also be used to identify a substance. For example, a substance's reactivity with certain chemicals or its ability to conduct electricity can be used to identify it. Additionally, the chemical properties of a substance can be used to predict how it will react with other substances.

It's important to note that chemical properties are different from physical properties, which are characteristics of a substance that can be observed without altering its chemical makeup. Examples of physical properties include a substance's color, density, and melting point. While chemical properties describe how a substance reacts with other substances, physical properties describe the substance itself.

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Concentration of Fe2+ ions: 2.08 M, Concentration of Cl- ions: 4.16 M

To calculate the concentration of each ion in a compound like FeCl2, we need to consider the dissociation of the compound into its constituent ions.

FeCl2 dissociates into one Fe2+ ion and two Cl- ions.

Since FeCl2 has a concentration of 2.08 M, the concentration of Fe2+ ions will also be 2.08 M. This is because there is a 1:1 ratio between FeCl2 and Fe2+ ions.

The concentration of Cl- ions will be twice the concentration of Fe2+ ions because there are two Cl- ions for every Fe2+ ion in FeCl2.

Therefore, the concentration of Cl- ions in FeCl2 is 2 * 2.08 M = 4.16 M.

To summarize:

- Concentration of Fe2+ ions: 2.08 M

- Concentration of Cl- ions: 4.16 M

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The distribution of electrons among orbitals in a many-electron atom is known as its electron configuration.

The electron configuration describes how electrons are distributed in the various energy levels and orbitals around the nucleus of an atom. It is represented using a series of numbers and letters that indicate the principal energy level (n), the type of orbital (s, p, d, f), and the number of electrons in each orbital.

For example, the electron configuration for carbon (C) is 1s^2 2s^2 2p^2, which shows that carbon has two electrons in the 1s orbital, two electrons in the 2s orbital, and two electrons in the 2p orbital.

The electron configuration provides important information about the arrangement and organization of electrons within an atom, which in turn affects the atom's chemical properties and reactivity.

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The molecular shapes in order of appearance are as follows:

Molecular geometry also known as the molecular structure, is the three-dimensional structure or arrangement of atoms in a molecule.

The shape of a molecule is determined by the location of the nuclei and its electrons.

In a linear molecule, the electron pairs take up opposite sides of the central atom, however, in a trigonal molecule, three pairs are evenly spaced around the central atom.

In a tetrahedral molecule, the four electron pairs get further away from each other by leaving the flat plane and separating in 3 dimensions.

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The activities of chromatography adsorbents (stationary phases) such as silica and alumina are greatly affected by their water content. The most active adsorbents are those that contain the least amount of moisture.                       The reason why this is the case is given below:

Chromatography adsorbents: Chromatography adsorbents or stationary phases are the materials in a chromatography column that play a significant role in separating the components of a mixture. The stationary phase interacts with the analyte molecules to bind them selectively and separate them based on the different affinities for the stationary phase.

The importance of water content: Water content is essential for the activity of chromatography adsorbents. The water molecules participate in hydrogen bonding with the surface groups of the adsorbent, allowing for enhanced selectivity of adsorption.

However, a large amount of water reduces the activity of the adsorbent due to the following reasons:

1. The presence of too much water can cause the polar and nonpolar properties of the adsorbent surface to be weakened, making it less active .

2.The polar groups on the adsorbent surface become saturated with water, making it more difficult to interact with the solute molecules and limiting the capacity of the adsorbent for adsorption.

3. The polar properties of the solute molecules are also reduced by the presence of excess water, reducing their affinity for the adsorbent.

Therefore, the most active adsorbents are those that contain the least amount of moisture.

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Answer:

it's broken down into  carbon dioxide and water

Explanation:

The answer is A. It gets broken down.

Answer:

Explanation:

Balanced forces  are opposite in direction and equal in size.

Balanced forces are  in a state of equilibrium.

Answer:

Balanced forces are forces whose net amount remains zero.

This can take place when two equal forces are acting in opposite direction.

Balanced forces don't make any  change in the position of objects

C, 0.746 mol Ag.

1 mol Ag = 6.022 x 1023 atoms of Ag -> 4.49 x 1023 atoms of Ag x 1mol Ag/6.022 x 1023 atoms -> 0.746 mol Ag

The moles of Ag that contain 4.49  \(\rm \times\;10^2^3\) atoms have been 0.745 moles.

The number of atoms in a mole can be given by the Avagadro number. The Avagadro number has been equal to the number of atoms in a mole of compounds. The Avagadro number has been constant with a value of 6.023 \(\rm \times\;10^2^3\).  

6.023 \(\rm \times\;10^2^3\) atoms = 1 mole

So, for the given 4.49  \(\rm \times\;10^2^3\) atoms:

4.49  \(\rm \times\;10^2^3\) atoms = \(\rm \dfrac{1}{6.023\;\times\;10^2^3}\;\times\;4.49\;\times\;10^2^3\) moles

4.49  \(\rm \times\;10^2^3\) atoms = 0.745 moles.

The moles of Ag that contain 4.49  \(\rm \times\;10^2^3\) atoms have been 0.745 moles.

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The correct answer is Gasoline [Homogeneous], soil[Heterogeneous], cranberry juice [Homogeneous], salt water [Homogeneous].

A mixture is a substance made up of two or more dissimilar chemical compounds that are not chemically linked in chemistry. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids. One or more pure components of differing compositions make up a combination. Heterogeneous and homogeneous mixtures are the two types of mixtures. While homogeneous mixtures seem consistent throughout, heterogeneous mixtures have clearly discernible components. A solution, which can be a solid, liquid, or gas, is the most typical kind of homogenous mixture.

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The answer is- Gasoline - homogeneous, Soil- heterogeneous, Cranberry juice - homogeneous and Salt water-homogeneous.

Mixture: The substance that has two or more elements or compounds mixed together without binding them chemically is known as mixture.

The constituents of mixture can be separated by various methods.

What are homogeneous and heterogeneous mixture?

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Answer:

V2= 531.4 ml

Explanation:

T1= 273+45 °C= 318 Kelvin

T2= 273+65 °C= 338 Kelvin

V1= 500ml *( 0.001L/1ml)= 0.5 Liters

V2= \(\frac{V1 * T2}{T1}\)= \(\frac{0.5 L * 338K}{318K}\) = 0.5314465409 Liters* (1 ml/0.001 L)= 531.4 ml

Answer:

Sunlight hits the solar panels, and creates an electric field. The electricity generated flows to the edge of the panel, and into a conductive wire. The conductive wire brings the electricity to the inverter, where it is transformed from DC electricity to AC, which is used to power buildings.

Answer:

Sunlight hits the solar panels, and creates an electric field. The electricity generated flows to the edge of the panel, and into a conductive wire. The conductive wire brings the electricity to the inverter, where it is transformed from DC electricity to AC, which is used to power buildings.

Explanation:

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Acetic acid and sodium hydroxide used to make a buffer solution.

What is buffer solution?

buffer solution is a waterproof solvent based solution in  which consists of a mixture of  containing a weak acid and  the conjugate base of the weak acid, or a weak base of the solution and the conjugate acid of the weak base. They resist to a  change in pH upon to the  dilution or upon the addition of small amounts of a  acid/alkali to them. Buffer solution resist of a  change in pH when smallest amounts of a stronger acid or a stronger base are added.

Sol-Acetic acid is a weaker acid and  its conjugate base is the acetate anion. That's why the addition of the strong base, hydroxide, which neutralized half of a  acetic acid created a buffer and  solution because we are having  significant amounts of both acetic acid and its conjugate base, the acetate anion, in the solution.

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During the electrolysis of water oxygen is reduced at the anode and hydrogen is oxidized at the cathode, option A.

The process of electrolyzing water involves utilising electricity to separate the liquid into oxygen (O₂) and hydrogen (H₂) gas. This releases hydrogen gas that may be used as hydrogen fuel or combined with oxygen to produce oxyhydrogen gas, which can be used for welding and other purposes.

A minimum potential difference of 1.23 volts is necessary for water electrolysis, albeit at that voltage external heat is also necessary. Usually, 1.5 volts are supplied. Due to the more affordable production of hydrogen using fossil fuels, electrolysis is rarely used in industrial applications.

Two electrodes, or two plates, normally formed of an inert metal like platinum or iridium and submerged in the water, are linked to a DC electrical power supply. At the cathode, hydrogen is visible, while oxygen is at the anode. Assuming optimum faradaic efficiency, the amount of hydrogen and oxygen produced are both proportional to the overall electrical charge carried by the solution, with hydrogen being produced at a rate double that of oxygen. However, competing side reactions frequently take place in cells, which leads to extra products and subpar faradaic efficiency.

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Answer:

Explanation:

To make it stronger you simply need to add more powdered drink mix or add less water. Concentration is basically the amount of something in something else. In this case, the more powdered mix is in the mixture per liter of water, the higher the concentration. Therefore, increasing the amount of powder mix while maintaining the same amount of water increases the concentration, as well as maintaining the same amount of powder mix but in less water. Anything else would decrease the concentration.

Answer: °32= 0 °C.

Explanation:

Answer:

Explanation:

Please add the temperature readings from all three trials for both thermometers. Will do the calculation with readings.

Answer: 15 L of \(N_2\) gas will have same numer of molecules as 15L of \(CO_2\) gas at the same temperature and pressure,

Explanation:

According to avogadro's law, equal moles of gases occupy equal volume at same conditions of temperature and pressure.

\(\text{Number of moles}=\frac{\text{Given volume}}{\text{Molar volume}}\)

\(\text{Number of moles of} CO_2=\frac{15L}{22.4L/mol}=0.67mol\)

\(1 mole of CO_2\) contains=\(6.022\times 10^{23}\)  molecules of \(CO_2\)  

Thus 0.67 moles of \(CO_2\) contains=\(\frac{6.022\times 10^{23}}{1}\times 0.67=4.03\times 10^{23}\) molecules

Now molecules of \(N_2\) = molecules of \(CO_2\) = \(4.03\times 10^{23}\)

\(6.023\times 10^{23}\) molecules of \(N_2\)  = 22.4 L

Now \(4.03\times 10^{23}\)  molecules of \(N_2\) = \(\frac{22.4}{6.023\times 10^{23}}\times 4.03\times 10^{23}=15L\)

Equilibrium is first reached at point 4.  Therefore, the correct option is option B among all the given options.

A chemical reaction occurs when the bonds between reactant molecules are broken and new bonds are established between product molecules to form a new substance. Chemical reactions can be found everywhere about us, form the metabolism of food in our bodies to the light we receive from the sun. Before starting with chemical reactions, it is necessary to understand physical and chemical changes. Equilibrium is first reached at point 4.

Therefore, the correct option is option B.

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Your question is incomplete but most probably your full question was,  

The graph represents the reaction 3H2 + N2 2NH3 as it reaches equilibrium. Based on the graph, which two statements about this reaction are true?

Answer:

Explosive eruptions occur when magma, which is molten rock in the ground, contains gas. ... The most dangerous features of these events are volcanic ash flows  swift, ground-hugging avalanches of searing hot gas, ash and rock that destroy everything in their path.

Explanation:

An engineer need to introduce heat pump systems when designing a heating/cooling system for a home in a cooler or warmer climate.

For all climates, heat pumps provide a more energy-efficient furnace and air conditioner replacement. Heat pumps, like your refrigerator, use power to move heat from a cold space to a warm space, warming the warm space and making the cool space cooler. Therefore, an engineer may introduce heat pump systems while designing a house in any kind of climate.

In the winter, heat pumps transfer heat from the chilly outside to your comfortable home. In the summer, heat pumps transfer heat from your home to the outside.

Heat pumps can effectively supply your home with acceptable temperatures since they transfer heat rather than producing it.

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Answer:

B. Free water