10. There are two bears that both have the same proteins for ear shape in their cells. The bears have
different parents. What can you say about the bears' ear shape?

the concentration of glucose in the unknown solution is 9.23 x 10^-5 mol/L. The absorbance of a mixture containing 1 ml of hexokinase reagent and 10 μl of a glucose solution with an unknown concentration was measured at 340 nm and found to be 0.575.

Convert the absorbance value to the molar concentration of NADH Since the molar extinction coefficient for NADH we can use the Beer-Lambert law, which states that A = εlc, where A is the absorbance, ε is the molar extinction coefficient, l is the path length.
 

Convert the molar concentration of NADH to the concentration of glucose. The hexokinase reaction converts glucose to glucose-6-phosphate, while consuming NADH in the process. Therefore, the ratio of NADH consumed to glucose consumed is 1:1. it is also the molar concentration of glucose in the solution.

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Answer:

You are correct however there is also potential energy because the energy is released over a period of time.

Hope this helps!

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

Answer:

3 HNO₃ + Fe(OH)₃ → H₂O + Fe(NO₃)₃

Explanation:

An acid reacts with a base producing water and a salt. Having this in mind the reaction of nitric acid (HNO₃) and Iron (III) hydroxide (Fe(OH)₃) is:

HNO₃ + Fe(OH)₃ → H₂O + Fe(NO₃)₃

The H⁺ of the acid reacts with the OH⁻ to produce H₂O. The other ions (Fe³⁺ and NO₃⁻) produce the salt

There are 3 nitrates in products. To balance the nitrates:

And this is the balanced reaction

a)  The volumetric flow rate of air entering the furnace is approximately 20.78 \(m^3/h.\)

b) the rate of heat transfer from the furnace is approximately 15,600 kJ/h.

To solve this problem, we need to apply the principles of stoichiometry and energy balance. Let's break it down step by step:

a.)  To determine the volumetric flow rate of air, we'll use the stoichiometry of the combustion reaction. Methane (\(CH_4\)) burns completely with air according to the following balanced equation:

\(CH_4\)+ 2 ( \(O_2\)+ 3.76 \(N_2\)) -> \(CO_2\)+ 2 \(H_2O\) + 7.52 \(N_2\)

Since we're given that the methane flow rate is 27 m^3/h, we can set up the equation:

27 \(m^3/h.\) \(CH_4\)* (2 + 3.76) = Air flow rate * 7.52

Simplifying, we find:

27 * 5.76 = Air flow rate * 7.52

Air flow rate = (27 * 5.76) / 7.52 ≈ 20.78 m^3/h

Therefore, the volumetric flow rate of air entering the furnace is approximately 20.78 \(m^3/h.\).

b. To determine the rate of heat transfer from the furnace, we'll use the energy balance equation. The energy balance can be expressed as follows:

Q = m_air * Cp_air * (T_exit_air - T_enter_air)

Where:

Q is the rate of heat transfer (in kW),

m_air is the mass flow rate of air (in kg/h),

Cp_air is the specific heat capacity of air (assumed constant at around 1.005 kJ/kg·°C),

T_exit_air is the exit temperature of air (427°C),

T_enter_air is the entering temperature of air (127°C).

To convert the volumetric flow rate of air to mass flow rate, we'll need to consider the density of air at the given conditions. At 127°C and 1 atm, the density of air is approximately 0.941 kg/m^3.

m_air = Air flow rate * Density_air = 20.78 m^3/h * 0.941 kg/m^3 = 19.53 kg/h

Now we can substitute the values into the energy balance equation:

Q = 19.53 kg/h * 1.005 kJ/kg·°C * (427°C - 127°C) = 15,600 kJ/h

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The correct answer is Carbon Monoxide (CO). When organic matter is burned with insufficient oxygen, it leads to incomplete combustion and the production of various gases, including carbon monoxide. Carbon monoxide is a colorless, odorless gas that is extremely poisonous and can be fatal in high concentrations.Carbon dioxide (CO2) is a product of complete combustion and is not produced when there is insufficient oxygen.Benzene is a hydrocarbon compound composed of six carbon atoms and six hydrogen atoms, and it is not produced from combustion.Methane (CH4) is a hydrocarbon compound composed of one carbon atom and four hydrogen atoms, and it is not produced from combustion.Mercury is a metallic element and is not related to combustion.

Answer:

The new volume will be  

0.7 L

Explanation:

This is an illustration of Charles' law, some of the time called the temperature-volume law. It expresses that the volume of a gas is straightforwardly corresponding to the Kelvin temperature, while pressing factor and sum are held steady.  The condition is  V  1  T  1  =  V  2  T  2  , where  V  is volume and  T  is temperature in Kelvins.  Known  V  1  =  0.5 L  T  1  =  20  ∘  C  +  273.15  =  293 K  T  2  =  150  ∘  C  +  273.15  =  423 K  Obscure  V  2  Arrangement  Revise the condition to confine  V  2  . Substitute the known qualities into the condition and address.  V  2  =  V  1  T  2  T  1  V  2  =  (  0.5  L  ×  423  K  )  293  K  =  0.7 L  adjusted to one huge figure

Answer:

stick together like magnets

Explanation:

Answer:

If a positively charged body is brought near to a neutral or uncharged body, it induces a negative charge on the near side and a positive charge on the far side of the neutral object. This creates a force of attraction between the two bodies.

One-of-a-kind compound zinc sulfide (ZnS) can take the shape of two different crystalline structures.

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The molar mass of a compound is the sum of the atomic masses of all the atoms present in one molecule of the compound. the molar mass of manganese hydroxide is 88.94 g/mol.

To calculate the molar mass of manganese hydroxide, we need to find the atomic masses of each of the elements and add them up in the correct proportions.

The atomic mass of manganese (Mn) is 54.94 g/mol.

The atomic mass of hydrogen (H) is 1.01 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol.

The formula for manganese hydroxide is Mn(OH)₂, which means there are two hydroxide ions (OH⁻) present for every one manganese atom.

To calculate the molar mass of manganese hydroxide, we add up the atomic masses of all the atoms present in one molecule of the compound: Molar mass of Mn(OH)₂ = (atomic mass of Mn) + 2(atomic mass of O) + 2(atomic mass of H) = 54.94 g/mol + 2(16.00 g/mol) + 2(1.01 g/mol) = 88.94 g/mol

Therefore, the molar mass of manganese hydroxide is 88.94 g/mol.

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On the basis of arrangement of atoms, the matter is classified into three states: solid, liquid and gas.

In Chemistry, there are three fundamental states of matter based on the arrangement of molecules and atoms inside it.

Generally, solids have strict and rigid arrangement of atoms as they posses strong intermolecular forces and have high melting and boiling points. solids have fixed composition of atoms.

Similarly, liquids have loose arrangement of atoms and molecules keep moving randomly in a liquid. Liquids have low melting and boiling points as compared to solids. Gases have weakest intermolecular forces and atoms are arranged randomly in them. Also, their molecules keep moving in all directions.

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Answer:

92.5925925926

Explanation:

8 million divided by the seconds in a day witch is 86400

Answer:

There are 86,400 seconds in a day (60 seconds in a minute, 60 minutes in an hour, 24 hours in a day --- 60x60x24 = 86,400 seconds.

80,000,000 kisses per 86,400 seconds, so 80,000,000/86,400 = number of kisses per second = about 925.9 kisses per second

This problem is providing statements whereby an student is pretending to explain a wrongly-classified non-redox reaction via the change in the oxidation numbers the elements undergo as it takes place. It is asked to report where the student went wrong and to determine whether the reaction is redox or not.

In such a way, we can start by saying that the student was right about the +1 on H and -1 on I but just on HI, not on the diatomic gases too, because when the elements act alone in a chemical equation, their oxidation states must be 0 as they are not forming any ions.

Next, we can go over the identification of the reaction as redox, by writing the correct oxidation numbers in the considered chemical equation:

\(I_2^0(g)+H_2^0(g)\rightleftharpoons 2H^+I^-(g)\)

Which exhibits an oxidation half-reaction for hydrogen because it changed from 0 to +1 and a reduction half-reaction for iodine because it changed from 0 to -1, and thus, when the oxidation numbers change, we say the reaction is redox.

Learn more:

Answer:

7.44 grams CaCl2 will produce 10.0 grams KCl.

Explanation:

The equation is balanced:

I've repeated it here, with the elements corrected for their initial capital letter.

CaCl2( aq) K2CO3( aq) → 2KCl( aq) CaCO3( aq)

This equation tells us that 1 mole of CaCl2 will produce 2 moles of KCl.

If we want 10.0g of KCl, we need to convert that mass into moles KCl by dividing by the molar mass of KCl, which is 74.55 grams/mole.

 (10.0 grams KCl)/(74.55 grams/mole) = 0.1341 moles of KCl.

We know that we'll need half that amount of moles CaCl2, since the balanced equation says we'll get twice the moles KCl for every one mole CaCl2.

So we'll need (0.1341 moles KCl)*(1 mole CaCl2/2moles KCl) = 0.0671 moles CaCl2.

The molar mass of CaCl2 is 110.98 grams/mole.

(0.0671 moles CaCl2)*(110.98 grams/mole) = 7.44 grams CaCl2

7.44 grams CaCl2 will produce 10.0 grams KCl.

The functional group(s) present in the steroid molecule are:

A) Ketone (CH3)

D) Ester (CH3')

The steroid molecule contains a ketone functional group (CH3) and an ester functional group (CH3').

What are steroids?

Steroid molecules are a class of organic compounds characterized by a specific four-ring structure consisting of three cyclohexane rings and one cyclopentane ring fused together. Steroids are derived from cholesterol and serve as important hormones and signaling molecules in the body. Examples of steroid molecules include testosterone, estrogen, progesterone, and cortisol.

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Answer:

atoms are matter and atoms can be destroyed or created  

Explanation:

i'm smart :)

Answer:

196.96655

Explanation:

The answer is 196.96655. I assume you are converting between grams Gold and mole. The molecular formula for Gold is Au. The SI base unit for the amount of substance is the mole.

The quantity present in an atom or molecules of a given substance is called moles it is written as mol and is calculated with the help of molar mass and mass of the given substance.

0.507699 mol is present in the 100 gm of gold.

Given,

The formula for calculating moles is:

\(\rm Moles (n) = \dfrac{Mass}{Molar \;mass}\)

Substituting values in the formula:

\(\begin{aligned}\rm n & = \dfrac{100}{196.967}\\\\ & = 0.507699 \;\rm mol\\\\& = 0.5077\;\rm mol\end{aligned}\)

Therefore, 0.5077 mol is present in 100 gm of gold.

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During fatty acid metabolism, the 2-carbon segments removed from a fatty acid are used to form (c) acetyl CoA.

This process, known as beta-oxidation, involves breaking down the fatty acid molecule into acetyl CoA units. Each round of beta-oxidation removes a 2-carbon acetyl CoA fragment, which can then enter the citric acid cycle (also called the Krebs cycle or TCA cycle).

Within the citric acid cycle, acetyl CoA undergoes further reactions to produce energy-rich molecules such as ATP. Acetyl CoA also serves as a precursor for the synthesis of other important molecules, including glucose through a process called gluconeogenesis.

Therefore, the 2-carbon segments removed from fatty acids contribute to the generation of (c) acetyl CoA, which plays a crucial role in cellular energy production and various metabolic pathways.

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Answer: chromatography

Explanation:

Answer:

15.5 moles

Explanation:

Applying,

PV = nRT.................. Equation 1

Where P = pressure, V = Volume, n = number of mole, R = molar gas constant, T = Temperature.

Make n the subject of the equation

n = PV/RT............... Equation 2

From the question,

Given: P = 0.899 atm, V = 425 L, T = 24 °C = (273+24) K = 297 K.

Constant: R = 0.083 L.atm/K.mol

Substitute these values into equation 2

n = (0.899×425)/(297×0.083)

n = 15.5 moles

We need to mix 120 mL of 50% dextrose solution with 480 mL of 5% dextrose solution to prepare 600 mL of 20% dextrose solution.

To prepare a solution of a desired concentration, we need to know the concentrations and volumes of the solutions we are mixing. In this case, we are mixing two solutions of different concentrations to get a desired concentration.

Let's assume x mL of the 50% solution is needed.

Amount of dextrose in the 50% solution = 50% of x

Amount of dextrose in the 5% solution = 5% of (600 - x)

Total amount of dextrose = 20% of 600 mL = 120 mL

So, we can write:

0.5x + 0.05(600 - x) = 0.2(600)

Solving this equation, we get x = 120 mL.

As a result, we must combine 120 mL of 50% dextrose solution with 480 mL of 5% dextrose solution to get 600 mL of 20% dextrose solution.

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Answer:

true

Explanation:

Answer:

true

Explanation:

when the temperature of the gas is decreased or pressure on the gas is increased, the gas becomes liquid at a certain temperature or pressure.

Answer:

(A) with an oxidation number of +2 and an anion

Explanation:

Answer:

A+2B-3 is the predicted formula when each metal cation has a charge of +2 and each non metal has a charge of -3

B2A3 is the final formula for the metal anion bonding to the non-metal cation in a 2:3 ratio.

A3B2 is the predicted formula with an overall charge of the compound being zero and each atom has 8 valence electrons in their outermost electron shell.

A3B2 is the predicted formula is made when each metal cation gains three electrons from the anion while each nonmetal loses 2 electrons to each of the cations.

Answer:

The sum of given measurements is 1007 L.

Explanation:

The given measurements are 28 L, 42 L, 6 L, and 931 L.

We need to find the total of these measurements.

Total = 28 L + 42 L + 6 L + 931 L

It can be written as

Total = ( 28 +42+6+931)

One simplification we get Total = 1007 L