Directions for a lab require heating a reactant to a temperature of 363.6 K. However, the only thermometer available reads in degrees Celsius. What is this temperature in °C?

Answer:

b. A to E

Explanation:

The aspartic acid (aspartate) residue in the active site of the enzyme is likely critical to the catalytic mechanism because it is a charged amino acid and can participate in ionic interactions that stabilize the transition state of the catalyzed reaction. Since the alanine mutant is inactive, we need to introduce a charged amino acid at this position to restore the activity.

Out of the options given, the mutation that is most likely to restore the wild-type level of activity to the alanine mutant is (b) A to E. The glutamic acid (glutamate) amino acid is similar to aspartic acid in its chemical properties, as both are negatively charged amino acids. Therefore, introducing a glutamic acid residue at the mutated position is likely to restore the ionic interaction necessary for catalytic activity.

The answer is 290.66 mL

Explanation:

The density of any substance including styrofoam is determined by two main factors: mass (atoms in the substance) and volume (space occupied). Moreover, the volume or mass of the substance can be calculated by using the density as these variables are related. Below I show the process:

density = mass / volume

mass = density x volume

volume = mass / density

volume = 21.80 g / 0.075 g/mL

volume = 290.66 mL

The equilibrium constant expression for the given system is: Keq = [CO₂] / [C][O₂]

Equilibrium constant, Keq for a given is defined as the concentration of the products raised to their coefficient to the concentration of the reactants raised to their coefficient

For example:

eB <=> cD

The equilibrium constant for the reaction above is given as

Keq = product / reactant

Keq = [D]^c / [B]^e

With the above illustration, we can obtain the equilibrium constant for the reaction given in the question. Details below:

From the question given above, the following data were obtained:

The equilibrium constant for the reaction reaction can be obtained as follow:

Keq = product / reactant

Keq = [CO₂] / [C][O₂]

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Answer:

A) 7.83 x 10^-3 M

Explanation:

7.83 x 10⁻³ M is the solubility of barium fluoride, BaF\(_2\), in a 0.100 M solution of barium nitrate, Ba(NO\(_3\))\(_2\), given that the K sp of BaF\(_2\)is 2.45×10-5. The correct option is option A.

The ability of a material, the solute, to combine with some other substance, the solvent, is known as solubility in chemistry. Insolubility, or the solute's inability to create such a solution, is the opposite attribute. The concentration of a solute inside a saturated solution is typically used to determine how much of a substance is soluble in a certain solvent.

The two compounds are said to be just at solubility equilibrium at this time. There might not be a limit for some solutes or solvents, in which case they two are referred to as "miscible in any quantities." Whereas the solvent is often solid or liquid, the solute may be either a solid, liquid, or gas.

BaF\(_2\)=0.100 M

Ba(NO\(_3\))\(_2\)=0.100 M

K sp of BaF\(_2\)=2.45×10⁻⁵

solubility of barium fluoride=2.45×10⁻⁵×0.100 =7.83 x 10⁻³ M

Therefore, the correct option is option A.

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First let's discover which element is oxidizing and which is reducing

So first let's rewrite the equation here:

Cr2O7^2- + C2O4^-2----> Cr^3+ + CO2

Reactant side:

oxidation state for Cr:

2x + (-2x7) = -2

x = +6

oxidation state for C:

2x + [4x(-2)] = -2

x = +3

Product side:

Cr - +3

oxidation state for C:

x + [2x(-2)] = 0

x = +4

A. The mole fraction of isopropanol in the solution is 0.124

B. The mass percent of isopropanol is 12.4%

C. The molality of isopropanol is 7.86 M

Mole fraction = mole / total mole

Mole fraction of isopropanol = 0.470 / 3.79

Mole fraction of isopropanol = 0.124

Percentage = (mole / total mole) × 100

Percentage of isopropanol = (0.470 / 3.79) × 100

Percentage of isopropanol = 12.4%

Molality = mole / Kg of water

Molality of isopropanol = 0.47 / 0.05976

Molality of isopropanol = 7.86 M

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Answer: They share electrons and become bonded together.

Explanation: Most interactions among atoms take place in the outermost shell of each atom. The number of each electron in this shell determines how an atom combines with other atoms to form compounds. When atoms combine they gain, lose or share electrons in such a way that the outer shells become chemically complete.

52.6g and 23.8mL necessary 100mL of a solution that is simultaneously 15.6 mg/mL malonic acid, 3.38 mg/mL MnSO4 • H2O, and 0.03% starch to make this solution.

What is malonic acid?

The chemical formula of malonic acid is CH2(COOH)2. Malonates include the ionized form of malonic acid as well as its esters and salts. Because it interferes with respiration, malonic acid is extremely harmful, especially in cases of cancer and other degenerative disorders (the making of ATP in mitochondria). Malonic acid is a somewhat unstable substance with limited practical uses. Beetroot contains its calcium salt, however the acid itself is often made by hydrolyzing diethyl malonate.

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In this letter, express gratitude to your uncle, a university professor, for his invitation and congratulate him on his achievements.

Here are the steps to be followed:

By following these steps, you can write a thoughtful and appreciative letter to your uncle, expressing your gratitude for his invitation and congratulating him on his achievements.

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Answer:

A. Steep hillside, little vegetation, strong downpours

Explanation:

between a steep hill and a flat valley, the hill is more likely to be affected because of gravity. with a valley theres less places for the dirt to actually move to. So C and D are not correct

a lack of vegetation and heavy downpour is the perfect condition for erosion. plants' root system makes dirt and rock more stable. without a lot of roots to hold the dirt in place and absorb water before it runs over the rocks and breaks them down, heavy rain would be a lot more likely to erode the area. so B isnt right either

Answer:

Elements are placed in order on the periodic table based on their atomic number, how many protons they have. In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number.

Explanation:

Answer: Elements are placed in order on the periodic table based on their atomic number, how many protons they have. In a neutral atom, the number of electrons will equal the number of protons, so we can easily determine electron number from atomic number.

Explanation:

Sedimentation, filtration, and coagulation are the treatments that will help remove contaminants from minerals or from the pipes carrying water from a source.

Sedimentation is a process in which suspended particles settle out of water. It is one of the most basic techniques for removing particles from water. As particles settle, they become trapped in the bottom of a container or settle to the ground in an outdoor setting

Filtration is a method of removing particles from a fluid. It is a physical or chemical separation method that separates solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass.

Coagulation is the process of using chemicals to remove contaminants from water. By creating a chemical reaction, coagulation destabilizes particles and causes them to clump together. This helps to remove the contaminants from the water.

Disinfection is the process of eliminating or destroying pathogens that cause infection. Disinfection eliminates harmful microorganisms by destroying or inactivating them. The disinfectant is a chemical or physical agent that is used to destroy or inactivate harmful microorganisms.

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Answer: Molecular Weight of 4Ca(OH)2 is 296.3707 g/mol

Explanation The molar mass and molecular weight of 4Ca(OH)2 is 296.371.

The statement "Each member of a homologous series differs from its nearest neighbors by 14 amu" is true of members about a homologous series.

In organic chemistry, a homologous series unveils itself as a sequential assembly of compounds exhibiting an identical functional group, boasting akin chemical traits. Within this series, the constituents can either sport a branched or unbranched structure, or deviate through the molecular formula of CH2 and a molecular mass variation of 14u.

This divergence may manifest as the elongation of a carbon chain, as observed in the linear alkanes (paraffins), or as the augmentation in the count of monomers forming a homopolymer, such as amylose.

The entities belonging to a homologous series typically embrace a fixed assortment of functional groups, thereby conferring upon them resemblant chemical and physical characteristics.

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" Volume is the amount of space occupied by a substance, while mass is the amount of matter it contains." -What Is the Definition of Volume in Science? - ThoughtCo

The pressure gauge on a compressed air tank that reads 43.2 mmHg is equivalent to 0.057atm.

Pressure in chemistry refers to the force of all the gas particle/wall collisions divided by the area of the wall.

Millimetre of mercury (mmHg) is a unit of pressure equal to the amount of fluid pressure one millimeter deep in mercury at zero degrees Celsius on Earth.

Atmospheric pressure (atm) is the unit of measurement equal to the average air pressure at sea level at a temperature of 15 degrees Celsius. It can be converted as follows:

Divide mmHg value by 760 i.e. 43.2 ÷ 760

43.2mmHg is equivalent to 0.057atm

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Answer:

No, it isn't a spontaneous reaction.

Explanation:

A spontaneous reaction is a reaction that requires no outside intervention to start.

All chemical reactions require energy.

mark brainliest please!

Water would be expected to have lower viscosity than oil, because even though water has polar bonds between its molecules, this type of interaction is different with respect to non-polar surfaces.

Answer:

Millimeter can be used to describe the width of a small piece of metal

Explanation:

The most appropriate unit to describe the width of a small piece of metal would be millimeters (mm). Millimeters are commonly used to measure small lengths or dimensions, such as the width of objects. This unit provides a precise and accurate measurement for small-scale items.

Ounces (oz) are typically used to measure weight or volume and may not be suitable for describing the width of an object.

Moles (mol) are used in chemistry to quantify the amount of a substance, so it is not relevant for measuring dimensions.

Milliliters (ml) are used to measure volume, specifically the capacity of liquids, and are not typically used to describe the width of a solid object.

Therefore, when discussing the width of a small piece of metal, millimeters (mm) would be the appropriate unit as it specifically measures small lengths or dimensions.

AI said C. Millimeter.

I hope this helped! :)

Answer:

because it will help u

because it will make u to understand the question very well

Answer:

The answer is cell wall

Explanation:

Because it is

Answer:

shhsss×<×>×××<××××

Explanation:

4×738×8<#329×

Molecule 1 will be more water soluble due to the presence of hydroxyl group.

Molecule 1 containing -OH (hydroxyl) will likely be more water-soluble compared to molecule 2 containing -COOH (carboxyl).

The hydroxyl group (-OH) forms hydrogen bonds with water molecules, promoting solubility. These hydrogen bonds allow for strong interactions between the polar hydroxyl group and the polar water molecules.

On the other hand, the carboxyl group (-COOH) is less soluble in water due to its additional carbonyl group (-C=O), which is less capable of forming hydrogen bonds.

Consequently, the presence of the carboxyl group reduces the overall solubility of the molecule compared to the hydroxyl group.

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Answer:

my increasing the amount of input force inorder to lift the load

Answer:

ok, here is your answer

Explanation:

AI-generated answer

To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.

First, we need to find the number of moles of hydrogen that reacted:

Molar mass of hydrogen (H₂) = 2.016 g/mol

Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol

Next, we need to use the balanced chemical equation to find the number of moles of water produced:

hydrogen + oxygen → water

2H₂ + O₂ → 2H₂O

From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:

Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol

Finally, we can find the mass of oxygen that reacted by using its molar mass:

Molar mass of oxygen (O₂) = 32.00 g/mol

Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g

Therefore, the mass of oxygen that reacted is 366.72 g.

Answer:

b

Explanation:

Answer:

b

Explanation:

Answer:it is 5 square c

Explanation:

because c is the best