Give one example of how environmental factor could influence the way a gene is expressed.

The electron configurations for Group 1A elements (Li, Na, K, Cs, Rb) are 1s² 2s¹, 1s² 2s² 2p⁶ 3s¹, 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹, 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s¹, and the electron configurations for Group 1B elements (Ag, Au) are [Kr] 5s² 4d⁹ and [Xe] 6s² 4f¹⁴ 5d¹⁰.

The Group 1A elements, also known as alkali metals, include Li (lithium), Na (sodium), K (potassium), Cs (cesium), and Rb (rubidium). The electron configurations for these elements are as follows:

Li: 1s² 2s¹

Na: 1s² 2s² 2p⁶ 3s¹

K: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

Cs: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s¹

The Group 1B elements, also known as coinage metals, include Ag (silver) and Au (gold). Their electron configurations are:

Ag: [Kr] 5s² 4d⁹

Au: [Xe] 6s² 4f¹⁴ 5d¹⁰

It's worth noting that copper (Cu), which belongs to Group 1B, has a slightly different electron configuration:

Cu: [Ar] 4s¹ 3d¹⁰

These electron configurations illustrate the distribution of electrons in the different atomic orbitals of each element, providing insights into their chemical properties and reactivity.

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Answer:

I.A thiol containing reagent and Heating(gentle)

II. Disulfide bond Breaker for Keratin

III. curling the hair physically

IV.A good oxidizing agent application

V. Disulfide bonds reformer for keratin  to hold the shape

Explanation:

The hair is mostly made of Keratin which is a structural proteins with about 15% cysteine

In order to change the hair appearance on the outside a reducing agent is required containing a thiol as to reduce the formation of the sulfide and disulfide bridges formation in the hair so the that any changes can be applied without the body naturally turning it back, i-e allowing easier manipulation after this  hairs are to be curled physically in order to keep this a oxidizing agent is applied and then finally a keratin reformer is added to hold the shape

Answer: sorry its lagging i hope this help fore 18.. =D

Explanation:

n,s is repeating the cycle of the inside

Answer/Explanation:

18, a,

I believe the n, and s represents North, South, or just the way the arrows are rotating repeatedly.

18, b,

The phenomenon re-occurring shows the alignment of magnetic dipoles with in a magnet, like inside. The arrows show a direction in the line with an external magnetic field in a way that it can produce its own magnetic fields that seem to travel from North to the South.

18, c,

Incorrect. Refrigerator magnets have multiple layers of magnification, they use opposite polarities to stay this way. If he puts the magnet sideways it may stick to the fridge

~ LadyBrain

The value of kc increases when the temperature is decreased and thereby the reaction to shifts to the right. decreasing the concentration of reactants and increasing products.

The equilibrium constant of concentration is a mathematical expression that describes the relationship between the concentrations of reactants and products at equilibrium in a chemical reaction. It is usually written as Kc or Kp.

Therefore, with this data, we can see that the equilibrium constant of concentration increases when temperature drops and thus decrease the reactant levels and increases the products.

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Answer:

The answer is C) fluorine (F)

The name of this alkane is with central carbons are bonded to c h 3 is 2-methylbutane.

Alkanes belong to the family of  saturated hydrocarbons with carbon carbon single bond.

For the given alkane;

          CH₃    H

 CH₃ -  C   -  C - CH₃

            H      H

Thus, the name of this alkane is with central carbons are bonded to c h 3 is 2-methylbutane.

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Answer:

2-methylbutane

Explanation:

2.4 L is volume of the balloon if 0.70 moles of gas are added

What is volume of a gas?

The area occupied by gaseous particles under normal temperature and pressure circumstances is referred to as the volume of the gas.

The symbol for it is "V."

Litres, abbreviated "L," are the SI unit of volume.

A mole of gas at normal temperature has a volume of 24 m3, or 24000 cm3.

The term "molar volume of a gas" refers to this quantity.

assuming ideal gas:

PV = RTn

∴ R = 0.082 atm.L/K.mol

∴ V1 =  2 L

∴ n1 = 3.50 mol

∴ T1 = 25°C ≅ 298 K

⇒ P1 = (RT1n1)/(V1) = ((0.082 atm.L/K.mol)(298 K)(3.50 mol))/(2 L)

⇒ P1 = 42.763 atm

with pressure and temperature held constant:

∴ T2 = T1 = 298 K

∴ P2 = P1 = 42.763 atm

∴ n2 = 0.70 mol + 3.50 mol = 4.20 mol

⇒ V2 = (RT2n2)/P2

⇒ V2 = ((0.082 atm.L/K.mol)(298 K)(4.20 mol))/(42.763  atm)

⇒ V2 = 2.4 L

Hence, 2.4 L is volume of the balloon if 0.70 moles of gas are added

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In general, closed reduction is used for simple fractures that can be reset without cutting through the skin. Open reduction is necessary for more severe fractures, such as compound fractures, where the broken bone has punctured the skin or the fracture is not amenable to resetting through closed reduction.

A fractured bone's shattered ends can be reset without surgery via closed reduction. The shattered ends of the bone must need surgery to be placed in their proper anatomical positions after open reduction. Closed reduction would probably be necessary for a partial fracture. Open reduction would be necessary for a complex fracture.

In a non-surgical procedure known as "closed reduction," the damaged bone is straightened without a skin incision. The procedure often includes pulling or manipulating the bone manually while under local or general anaesthesia.

On the other hand, open reduction requires surgery to correct the shattered bone. When closed reduction is not an option or the shattered bone is badly malpositioned, it is often carried out.

Simple fractures, when the shattered bone is still in alignment and may be moved with manual manipulation or traction, are most likely to result in closed reduction.

In complicated fractures, where the fractured bone has pierced the skin, or in severe fractures, where the broken bone is severely displaced and cannot be realigned with closed reduction, open reduction is more likely to take place.

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Answer:

If this is for the "functional groups" question:

1. aldehyde

2. ketone

3. ester

4. carboxylic acid

Explanation:

Got them all right on edge.

The drop-down menus to identify the names of the structures in the table to the right

1. Aldehyde

2. Ketone

3. Ester

4. Carboxylic acid

A functional group in organic chemistry is a pool of atoms within molecules which bind jointly to react in predicted ways.

Examples of functional groups contain the group hydroxyl, ketone, amine, and ether.

Thus, these are the drop down menus.

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Answer:

1.44 L

Explanation:

Since 25 is constant it is no use. Now, rearrange the gas formula. You should get...

P1V1/T2=P2V2T1

Next, rearrange to fit the problem. You should get...

V2=P1V1/P2

Fill in our values and solve. You should get 1.44 L

We can check this by knowing that P and V at constant T have an inverse relationship. Hence, this is correct.

- Hope that helps! Please let me know if you need further explanation.

We can start by balancing the chemical equation:

3 Ca + Au2(SO4)3 → 3 CaSO4 + 2 Au

The equation shows that 2 moles of gold atoms are produced for every 1 mole of Au2(SO4)3 that reacts. We can use Avogadro's number to convert the number of atoms of gold to moles:

4.6 x 10^22 atoms of gold / 6.022 x 10^23 atoms/mol = 0.0764 moles of gold

Therefore, we know that 0.0764 moles of Au2(SO4)3 reacted in the equation. To find the mass of Au2(SO4)3, we can use its molar mass:

Au2(SO4)3 molar mass = (2 x 196.97 g/mol) + (3 x 96.06 g/mol) + (12 x 16.00 g/mol) = 842.09 g/mol

Finally, we can use the following conversion factor to calculate the mass of Au2(SO4)3:

0.0764 moles of Au2(SO4)3 x 842.09 g/mol = 64.3 g of Au2(SO4)3

Therefore, approximately 64.3 grams of Au2(SO4)3 were reacted to produce 4.6 x 10^22 atoms of gold.

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Answer:

The answer is A

Explanation:

Answer:

It's Mass

Explanation: I took the quiz

Have a good day!

Mass is the amount of matter in an object. Therefore, option C is correct.

Mass can be defined as an intrinsic property of a body. mass can be described as the quantity of matter in a body. Different atoms and different particles with the same amount of matter have nonetheless different masses.

Mass can be experimentally measured by the body's inertia, meaning the resistance to acceleration when a net force is applied. The mass determines the strength of its gravitational attraction to other bodies.

The SI base unit of measurement of mass is the kilogram (kg) and it is not the same as weight. Mass is generally determined by measuring the weight using a spring scale, rather than a balance scale and comparing it to known masses.

An object on the Moon will weigh less than it does on Earth due to the lower gravity but still have the same mass. Weight can be defined as a force, while mass is the property that determines the strength of this force.

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Answer:

Freezing or boiling water

It would require 46434 calories of heat to boil 142 g of ammonia.

When a liquid changes form into a gas, the process is called vaporization. You can watch vaporization when you boil a pot of water. Vaporization happens in two ways: evaporation and boiling. Evaporation occurs when sunlight shines on water until it changes to vapor and rises into the air

To calculate the amount of heat required to boil 142 g of ammonia, NH3, we can use the formula:

Heat = mass x heat of vaporization

where the mass is 142 g and the heat of vaporization is 327 cal/g.

Therefore, the heat required to boil 142 g of ammonia is:

Heat = 142 g x 327 cal/g

Heat = 46434 cal

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Butanal is the next family member after Propanal. Its chemical formula is C₄H₈O.

Butanal is an aldehyde with the chemical formula C₄H₈O. It is a four-carbon compound that has an oxygen atom double bonded to the carbon of the carbonyl group. The compound can be produced by oxidation of butanol. It has a pungent odor and is used in the production of flavors and fragrances.

Butanal has a linear structure, and it can be represented by its ball and stick diagram. The carbon atoms in the diagram are represented by the balls, while the bonds are represented by the sticks. The oxygen atom is represented by a red ball, while the hydrogen atoms are represented by white balls.

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The total bond energy of the reactants and products must be subtracted to obtain the energy change in the reaction \(2H_2O --- > 2H_2 + O_2\) using the provided bond energy.

Reactants:

2H-O-H (2 molecules) = 2 * (2 * O-H) = 2 * (2 * 463 kJ/mol) = 1852 kJ/mol

Products:

2H-H (2 molecules) = 2 * (2 * H-H) = 2 * (2 * 436 kJ/mol) = 1744 kJ/mol

O=O = 1 * O=O = 1 * 495 kJ/mol = 495 kJ/mol

1852 kJ/mol is the total binding energy of the reactants.

The combined binding energy of the products is 1744 kJ/mol + 495 kJ/mol, which is equal to 2239 kJ/mol.

Energy change (ΔE) = Total bond energy of the products - Total bond energy of the reactants

ΔE = 2239 kJ/mol - 1852 kJ/mol = 387 kJ/mol

So, the answer is E.

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Your question is incomplete, most probably the complete question is:

Calculate the energy change of the following reaction

based on the bond energies given.

2H2O2H2 + O2

H-H: 436kJ/mol

O=0: 495kJ/mol

O-H: 463kJ/mol

Select one:

False. Molar solubility is the number of moles of solute that can dissolve in one litre of solvent, while solubility in g/L is the amount of solute that can dissolve in one litre of solvent.

The statement "molar solubility is always equal to the solubility in g/l" is false. Molar solubility refers to the maximum number of moles of a solute that can dissolve in a litre of solution, while solubility in g/l refers to the maximum amount of solute (in grams) that can dissolve in a litre of solution. These two values are related but not equal, as they depend on the molar mass of the solute. The two values are related, but not always equal, as they depend on the molar mass of the solute.

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Answer:

Question1: Isotopes, element, protons, neutrons. Question 2: W and Y

Explanation:

An Isotope is atoms of the same element that have a different amount of neutrons.

Both are Carbon atoms, but their Atomic Masses are different, and Atomic Masses are made up of Protons and Neutrons, which proves this!

Hope this helps! :D

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

ture

Explanation:

trees, plants is what keeps us alive

The final temperature of both substances at thermal equilibrium is 51.96°C.

Solution:

31.91 T =10374.27

T= 325.11 K or T= 51.96 °c

Final equilibrium Temperature (T) = 51.96°C.

Two systems are said to be in thermal equilibrium when they are in contact with each other and there is no energy flow between them. Simply put, thermal equilibrium means that two systems are at the same temperature. The zero law of thermodynamics states that if two systems are in thermodynamic equilibrium with his third system, then the original He said that the two systems are in thermal equilibrium with each other.

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Answer:

4.50000 moles

Explanation:

This is dimensional analysis. If there is 163.59 grams in 1 mole of this compound then the converse is true: in 1 mole of this compound there is 163.59 grams --> 1 mol/163.59 grams.

Now that you have your conversion factor:

736.155 grams * (1 mol/163.59 grams) is your equation.

When you multiply these together, grams cancel and you end up with the desired mole-based answer:

4.50000 moles (The extra zeros are to make up for the 6 significant figures in 736.155, feel free to omit them if necessary.)

(pls give brainliest if this helped)

We know that:

- It is a constant-pressure calorimeter

- the temperature of 60.0 g of water increases by 4.50 °C

- Specific heat capacity of water = 4.2 J/goC

And we must find the amount of heat that is transferred to the water.

To find it, we need to use the formula for heat absorbed

Where,

Q represents the heat absorbed by the water

m represent the mass

Cp represents specific heat, in this case of the water

(T2 - T1) represents the variation of the temperature

Using the given information, we know that:

m = 60.0 g

Cp = 4.2[J/(g°C)]

(T2 - T1) = 4.50 °C

Now, replacing in the formula

Finally, we can convert J to KJ

ANSWER:

B. 1.13 KJ

Answer: It is the number in the upper left (atomic number).

Explanation: The atomic number is normally the number of protons. I hope this helps.

Answer:

The molecules in a solid are very close together and move very slowly. As the mixture was shaken in the ice, the cold slowed the molecules down, and they moved closer together. The liquid turned into a solid.

Explanation:

Good luck :)