Which of the following is not a genetic trait?
Dimples
Hair length
Height
Hair Color

Answer:

Ruthenium and Rhodium

Explanation:

Some people practice brining their turkey. This means they let it soak in a solution overnight. The solution diffuses into the turkey. This means that the turkey is placed into a hypertonic solution.

A hypotonic solution is described as a solution that has lower osmotic pressure than another solution to which it is compared.

The concept of tonicity helps us understand that the saltwater we use to brine the turkey is typically considered hypertonic solution because it has a greater concentration of solutes than the liquid found inside the cells.

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Answer:

In physics, action is an attribute of the dynamics of a physical system from which the equations of motion of the system can be derived through the principle of stationary action. ... Action has dimensions of energy⋅time or momentum⋅length, and its SI unit is joule-second.

Explanation:

hope it helps

Answer:

Action is an attribute of the dynamics of a physical system from which the equations of motion of the system can be derived through the principle of stationary action.

Explanation:

So,

There's an equation that we could use in order to find frequency, and it is the next one:

This equation tells us that the energy of the photon is equal to the product of the Plank constant (h), which is 6.626*10^-34 J.s, and the frequency.

In this problem, we know the value of E and the value of h, so we need to solve for v:

Therefore, the correct answer option is A.

Here, 3x10^23 molecules of water are equal to 0.5 moles of water.

There are many ways to find the number of moles of a compound, but to convert the number of molecules of water to moles of water, Avogadro's number needs to be known.

The formula used to find the number of moles is:

moles = (Number of molecules) / (Avogadro's number)

As Avogadro's number = 6.022 x 10^23 molecules/mole.

The given number of molecules is 3x10^23.

Putting the values in the above equation;

(3 x 10^23 molecules of water) / (6.022 x 10^23 molecules/mole) = 0.498 moles of water

Rounding off the value gives 0.5 moles of water.

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Answer:

C: They both have 1 electron in a p orbital.

Explanation:

Find the electron configuration of B

Boron is 1s 2s2 2p1

Find the electron configuration of Al

Aluminum is 1s2 2s2 2p6 3s2 2p1

If you look at the p orbital, they both have 1 electron.

Therefore, the correct answer is C.

Hope it helped!

Answer:

The nonpolar covalent compounds are:

H2O (polar covalent)

NCl3 (polar covalent)

AuCl3 (ionic)

ClO2 (polar covalent)

SF4 (polar covalent)

SO3 (nonpolar covalent)

Answer:

By dehydrogenation of cyclohexane you may get Benzene as a product. We may use noble metals(Au, Ag, Pt etc.) to dehydration of cyclohexane. Consider following reaction which gives an idea about reaction.

Explanation:

I think it is the correct answer

i have read this in one of the book

Organic fertilizers are made from mined rock minerals, and natural plant and animal materials. They include ingredients like manure, guano, dried and powdered blood, ground bone, crushed shells, finely pulverized fish, phosphate rock, and wood.

Inorganic fertilizer is synthetic, comprised of minerals and synthetic chemicals. Most of the minerals in inorganic fertilizer are mined from the earth, and balanced inorganic fertilizers are high in all three macronutrients and can contain ammonium sulfate, magnesium sulfate, and potassium chloride.

mark me brainliesttt :))

Answer:

wind..........................

Answer:

it should be 0.01

Explanation:

The standard enthalpy change for reaction (3) is 117.1 kJ.

The standard enthalpy change for reaction (3) can be calculated by using the enthalpy changes of reactions (1) and (2) and applying Hess's Law.

To do this, we need to manipulate the given equations so that the desired reaction (3) can be obtained.

First, we reverse reaction (1) to get the formation of C2H4(g) from C2H6(g):

C2H4(g)C2H6(g) ΔH° = -52.3 kJ

Next, we multiply reaction (2) by 2 and reverse it to obtain 2 moles of C2H6(g) reacting to form 3 moles of H2(g):

2C2H6(g)2C(s) + 3H2(g) ΔH° = 169.4 kJ

Now, we add the two modified equations together:

C2H4(g)C2H6(g) ΔH° = -52.3 kJ
2C2H6(g)2C(s) + 3H2(g) ΔH° = 169.4 kJ

When adding these equations, the C2H6(g) on the left side cancels out with the C2H6(g) on the right side, leaving us with the desired reaction (3):

C2H4(g) + H2(g)C2H6(g) ΔH° = -52.3 kJ + 169.4 kJ = 117.1 kJ

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Answer: The element that is least similar is lead.

Hope this helps you!

Elements of same group have similar chemical and physical properties. Ca, Mg and barium are groups members of beryllium. Hence, lead is least similar to Be among the given elements.

Beryllium (Be) is the 4th element in periodic table. It is a metal and mostly forms ionic compounds. The vertical columns in a periodic table are called groups.

Elements of same group have same number of valence electrons and similar chemical and physical properties. Beryllium is n second group of periodic table called the alkaline earth metals.

The group members of Be are calcium, magnesium , barium and strontium. They all have two valence electrons. Lead is metal located in 14th group. Hence, lead is least similar to Be.

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The options of your question includes the following :

magnesium

Barium

lead

calcium

The complete formation equation for solid magnesium sulfate tetrahydrate can be written as follows:
MgSO4 + 4H2O → MgSO4·4H2O

The formation of solid magnesium sulfate tetrahydrate involves the reaction of magnesium sulfate with water to produce a hydrated salt with four water molecules attached to each magnesium sulfate molecule. This reaction is exothermic, releasing heat as the solid hydrate is formed.
Magnesium sulfate is a white crystalline solid that can be found in nature as the mineral epsomite. It is commonly used in fertilizers, as a drying agent, and in the preparation of various magnesium compounds.
The formation of magnesium sulfate tetrahydrate is a useful laboratory demonstration of hydration reactions and can also be used to illustrate the concept of stoichiometry, as the balanced chemical equation shows that one mole of magnesium sulfate reacts with four moles of water to produce one mole of magnesium sulfate tetrahydrate.
In conclusion, the complete formation equation for solid magnesium sulfate tetrahydrate is MgSO4 + 4H2O → MgSO4·4H2O, and this reaction involves the combination of magnesium sulfate and water to produce a hydrated salt with four water molecules per magnesium sulfate molecule.

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In glycolysis, ATP is consumed in the reaction producing compound is adenosine diphosphate (ADP)

Glycolysis is the initial stage of cellular respiration in which glucose is broken down into pyruvate. In the cytoplasm of the cell, this process happens. Two molecules of ATP are used in glycolysis, and four are produced. The product of glycolysis is pyruvate, which can enter either anaerobic or aerobic cellular respiration.

Adenosine triphosphate (ATP) is a type of nucleotide that is made up of adenine, ribose, and three phosphate groups. ATP is a universal energy currency in organisms that use oxygen, storing and delivering energy for cellular processes. During cellular respiration, ATP is synthesized and consumed repeatedly. ATP is produced in the later stages of cellular respiration, including oxidative phosphorylation and chemiosmosis.

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Passing a current of 12 A through a solution of CuSO4 for 15 minutes would result in the deposition of 3.55 grams of Cu at the cathode.

To calculate the amount of Cu obtained by passing a current of 12 A through a solution of \({CuSO_{4}\) for 15 minutes, we need to use Faraday's Law of Electrolysis.

First, we need to calculate the charge passed through the solution using the formula:

Q = I * t

Where Q is the charge passed (in Coulombs), I is the current (in Amperes), and t is the time (in seconds).

Converting the time of 15 minutes to seconds, we get:

t = 15 * 60 = 900 seconds

Substituting the given values, we get:

Q = 12 * 900 = 10,800 Coulombs

Next, we need to use the formula:

n = Q / F

Where n is the number of moles of electrons transferred, Q is the charge passed (in Coulombs), and F is Faraday's constant (96,485 Coulombs/mole).

Substituting the given values, we get:

n = 10,800 / 96,485 = 0.1118 moles of electrons

Since the reaction at the cathode in this case is:

\(Cu^{2+}\) + 2e- → Cu

We can see that for every 2 moles of electrons transferred, we get 1 mole of Cu deposited at the cathode.

So, the number of moles of Cu deposited would be:

0.1118 / 2 = 0.0559 moles of Cu

Finally, we can use the molar mass of Cu (63.55 g/mol) to calculate the mass of Cu deposited:

Mass of Cu = number of moles * molar mass

                    = 0.0559 * 63.55

                    = 3.55 grams

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Answer:688

Explanation:

Answer: because they take a lot of tie to form  

Answer:

39.92 grams

Explanation:

1. get molar mass of each element

2. get molar mass of the whole compound

3. multiply 0.25 moles to the molar mass of the whole compound

To calculate the weight of 0.25 mol of Fe2O3, we need to know the molar mass of Fe2O3.

The molar mass of Fe2O3 can be calculated by adding the molar masses of two iron atoms (Fe) and three oxygen atoms (O) as follows:

Molar mass of Fe2O3 = 2 x (molar mass of Fe) + 3 x (molar mass of O)

The molar mass of Fe is 55.845 g/mol, and the molar mass of O is 15.999 g/mol. Substituting these values in the above equation, we get:

Molar mass of Fe2O3 = 2 x 55.845 g/mol + 3 x 15.999 g/mol

Molar mass of Fe2O3 = 159.69 g/mol

Therefore, the weight of 0.25 mol of Fe2O3 can be calculated as:

Weight = number of moles x molar mass

Weight = 0.25 mol x 159.69 g/mol

Weight = 39.92 g

Therefore, 0.25 mol of Fe2O3 weighs approximately 39.92 grams.

chatgpt

Answer:

39.92205g

Explanation:

0.25mol of fe203 weighs = 0.25×159.6882

=39.92205g

Answer:

D

Explanation:

The weak crust of the earth does not hold together as well as strong crust.

Answer:

A and B was right in our test.

Explanation:

A was: A volcano can suddenly get taller every time it erupts

B was: Hot magma from inside Earth is released at weak points in the crust.

A compound Boolean expression created with the AND operator is true only if both of its subexpressions are true.

A Boolean expression is an expression in which values are either true or false. It is mostly used in programming languages. True and false are denoted by 1 and 0 respectively.

The basic Boolean operators are AND, OR, and NOT. In OR operation, the value is true if either one or the values are true.  Not operator also known as negation converts the true value into false and vice versa.

Boolean algebra is the basic fundamental of digital circuits and programming languages.

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The equation that depicts a single replacement reaction would be: Zn(s) + 2HCl(aq)→ ZnCl2​​​(aq) ​​​​+ H2(g)

They are also known as single displacement reactions.

They are reactions in which one element takes the place of another in a compound. That is, one element replaces another in a compound.

Looking at all the reactions from A - D, one can see that the only reaction that exemplifies a single replacement reaction is D.

Here, Zn replaced H in HCl.

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The correct answer to the first part of your question is option (c): Energy is released by water vapor as it condenses.

When water vapor condenses into liquid water, it undergoes a phase change from a gaseous state to a liquid state. During this phase change, energy is released in the form of latent heat. This release of energy occurs because the water molecules in the vapor phase are more energetic and have higher kinetic energy compared to the water molecules in the liquid phase.

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The correct option is (B) No, the solution is too dilute and would have a %T over 90% where Beer's Law does not apply.

The solution is too dilute, it will have lower than desired concentration of the desired substance. To make solution more concentrated, more of the desired substance must be added to the solution. This increases the concentration of the desired substance, allowing it to be more effective in the intended application.

The amount of the desired substance must be adjusted according to the desired concentration of the solution. In addition, the amount of other substances in the solution must be considered to ensure the desired concentration is not too high or too low. Too high concentration could produce an undesired reaction, while too low a concentration would decrease the efficiency of the desired reaction.

Full question:

A set of dilutions ranging in concentration from 1x10-2 M to 2x10-2 M are used to prepare a standard curve. Transmittances of the dilutions range from 12% to 88%. Could this plot be used to determine the concentration of a sample that had a concentration of 1.0x10-3 M?

A) No, the solution is too dilute and would have a %T under 10% where Beer's Law does not apply.

B) No, the solution is too dilute and would have a %T over 90% where Beer's Law does not apply.

C) Yes, simply extend the standard curve.

D) No, the solution is too concentrated and would have a %T over 90% where Beer's Law does not apply.

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Here are three equations representing the chemical reaction between a metal and an acid:

Zinc + 2HCl → ZnCl2 + H2

Iron + 2HNO3 → Fe(NO3)2 + H2O + NO

Magnesium + 2H2SO4 → MgSO4 + 2H2O + SO2

The three equations representing the reaction :

In this reaction, zinc (metal) reacts with hydrochloric acid to form zinc chloride and hydrogen gas.

In this reaction, iron (metal) reacts with nitric acid to form iron(II) nitrate, water, and nitric oxide.

In this reaction, magnesium (metal) reacts with sulfuric acid to form magnesium sulfate, water, and sulfur dioxide.

In each of these equations, the metal reacts with the acid to produce a salt, water, and sometimes additional products such as hydrogen gas (H2), nitrogen dioxide (NO2), nitrogen monoxide (NO), or sulfur dioxide (SO2), depending on the specific acid and reaction conditions.

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Answer:

55

Explanation:

According to the law of conservation properties of Matter in a closed system the mass of reactants is equal to the mass of products. Because there is no lose of matter or energy in closed system

The given chemical equation is,Na2SO4 + 2C → Na2S + 2CO2To determine the amount of Na2S produced from 24 grams of C, we need to use stoichiometry.

Using stoichiometry, we can calculate the number of moles of C that will react with Na2SO4 and produce Na2S.From the equation, we can see that 2 moles of C react with 1 mole of Na2SO4 to produce 1 mole of Na2S.So, the number of moles of C can be calculated as follows:Number of moles of C = Mass of C / Molar mass of CNumber of moles of C = 24 g / 12.01 g/mole Number of moles of C = 1.998 moles Now, using the stoichiometry, we can calculate the number of moles of Na2S that will be produced from 1.998 moles of C.

Number of moles of Na2S = Number of moles of C x (1 mole of Na2S / 2 moles of C)Number of moles of Na2S = 1.998 x (1 / 2)Number of moles of Na2S = 0.999 molesFinally, we can calculate the mass of Na2S produced from 24 grams of C.Mass of Na2S = Number of moles of Na2S x Molar mass of Na2SMass of Na2S = 0.999 moles x 78.04 g/molMass of Na2S = 77.96 gTherefore, 77.96 grams of Na2S will be produced from 24 grams of C.LONG ANSWER IN 100 WORDS:First, we need to balance the given chemical equation as follows:Na2SO4 + 2C → Na2S + 2CO2To determine the amount of Na2S produced from 24 grams of C, we need to use stoichiometry.

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Answer:

2. Distillation Flask

3. Fractionating column

4. Thermometer

5. Condenser

6. cold water in

7. cold water out

8. Recieving flask

13. Electric heater

There are several factors that can cause a decrease in the rate of dissolution:

Decrease in temperature: As the temperature decreases, the kinetic energy of the particles decreases, and the rate of dissolution also decreases.

Increase in solute concentration: If the solution is already saturated with solute, then adding more solute will cause it to become supersaturated, which can cause a decrease in the rate of dissolution.

Increase in pressure: Increasing the pressure can force more solute into the solution, but it can also cause an increase in the solubility of the solute, which can cause a decrease in the rate of dissolution.

Decrease in surface area: If the solute is in the form of large particles, then breaking it down into smaller particles will increase the surface area available for dissolution and increase the rate of dissolution. Conversely, decreasing the surface area will decrease the rate of dissolution.

Formation of a precipitate: If the solute is capable of forming a precipitate in the solution, then the rate of dissolution may decrease as the solute is removed from the solution and deposited as a solid.

~~~Harsha~~~