Which element in this group would be the least likely to react with other elements?
3
Lithium
Li
6.939
2,1
4
Beryllium
Be
9.01218
2.2
5
Boron
B
10.81
2,3
6
Carbon
С
12.011
2.4
7
Nitrogen
N
14.0067
2,6
8
Oxygen
O
15.9994
2,6
10
Neon
Ne
20.183
2,8
9
Fluorine
F
18.9984
2,7
Boron
O Carbon
O Neon
Oxygen

Answer:

True, in as far as greater magnitude = greater power.

Answer:

correct

Explanation:

Answer:

add a substace devider

Explanation:

i forgot what it was called but there is a chemical that allows the substances to seperste and than you can test the substaces ph and what it is

Answer:Are these free points

Explanation: because if so I want them

Answer:

Explanation:

The lupac name of this compound is 2-Oxohexanoic acid. This compound is composed of two oxygen atoms, six carbon atoms, and one hydrogen atom. The parent chain is made up of six carbon atoms, and the functional group is a carboxylic acid group (COOH)

Answer:

c

Explanation:

because i did it

Answer: 19.8 seconds

Explanation:

you're welcome:) <3 plz lmk if i'm wrong

Answer:

the two parents probably had two different fingernail thicknesses and one puppy took one the other puppy took another and the third puppy had a 50/50 split of the gene. his is possible because sometimes instead of mixing genetics have dominant genes which will take over in some offspring.

Explanation:

Hope this is what your looking for :)

Answer:  Punnet square

Explanation:

There are 2.94 x 10^24 molecules in 1.2 kg of XeF6.

First, we need to calculate the number of moles in 1.2 kg of XeF6.
Mass = 1.2 kg = 1200 g
Molar mass of XeF6 = 245.3 g/mol

Moles in 1.2 kg of XeF6 = Mass / Molar Mass
                                       = 1200 g / 245.3 g/mol
                                       = 4.89 mol

Next, we can use Avogadro's number to calculate the number of molecules.
1 mol = 6.022 x 10^23 molecules
Therefore,
4.89 mol = 4.89 mol x 6.022 x 10^23 molecules/mol
4.89 mol = 2.94 x 10^24 molecules

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Answer: electrons

Explanation:

electrons are attracted to the nucleus by the charge of the protons. To get past this force, one would need to add energy. Ionization energy increases to the right and up (according to the periodic table trends) because there are more protons as you move across a period, making it harder to take an electron.

The correct formula for a compound formed from the elements Al and O is Al₂O₃.

Correct option is C.

Aluminum oxide is an oxide of aluminum with the chemical formula Al₂O₃ which is primarily composed of two chemically bonded aluminum and oxygen atoms. Aluminum oxide chemical compounds exist in various forms, with the most common being alpha, gamma, and theta.

The solid compound is an odorless, white powder which is insoluble in water and is a major component of the Earth's crust. It occurs naturally as corundum, bauxite, and cryolite and can be synthetically produced through burning aluminum metal or dissolving alumina tri-hydrate.

Aluminum oxide is widely used in a variety of applications due to its unique properties such as hardness, thermal conductivity, electrical conductivity, optical properties, and chemical inertness.

Correct option is C.

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The statement describes conditions in which a mineral can form is "Crystals of minerals dissolve in the groundwater in caves."

Atoms of the relatively similar element and atoms of other elements [such as silica (Si) and calcium (Ca)] can make up a crystal, and they are arranged in a predictable, repeating pattern.

A mineral would be an element as well as a chemical compound which has been produced as a result of geological activity and is often crystalline in nature.

The statement describes conditions in which a mineral can form as "Crystals of minerals dissolve in the groundwater in caves."

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Answer:

thermal shock

Explanation:

the temperatures inside the glass jar should have continued to increase over time. Internal stresses due to uneven heating. This is also known as “thermal shock”.

In general, the thicker the glass, the more prone it will be to breaking due to the immediate differences in temperature across the thickness of glass.

Borosilicate glass is more tolerant of this, as it has a higher elasticity than standard silicon glass.

You may also note that laboratory test tubes and flasks are made with thinner walls, and of borosilicate glass, when designated for heating.

Answer:

Presence of an Electrolyte

Metal Surface

Oxygen or Other Oxidizing Agent

Difference in Potential

Electrochemical Pathway

Explanation:

Answer:

the 2nd choice, nervous and muscular

Rehardens the newly arranged disulfide bonds as well as neutralizes any remaining waving lotion in the hair through oxidation is called a neutralizer.

Waving Lotion / Solution is the one that softens and swells the cuticle layer then it breaks the disulfide bonds through the process of reduction.

Neutralizer is the substance that  rehardens the newly arranged disulfide bonds as well as neutralizes any remaining waving lotion in the hair through oxidation.

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The concentration of a solution that is prepared by dissolving 15 mg of NaCl in 200 mL water is 75 ppm. So, the correct option is a.

To calculate the concentration in parts per million (ppm), we need to determine the amount of NaCl dissolved in the solution and then convert it to ppm.

Mass of NaCl = 15 mg

Volume of solution = 200 mL

First, we need to convert the volume from milliliters (mL) to liters (L):

Volume of solution = 200 mL = 200/1000 L = 0.2 L

Next, we can calculate the concentration of NaCl in mg/L:

Concentration (mg/L) = (mass of solute in mg) / (volume of solution in L)

Concentration (mg/L) = 15 mg / 0.2 L = 75 mg/L

Finally, we can convert the concentration from mg/L to ppm:

Concentration (ppm) = Concentration (mg/L) = 75 ppm

Therefore, the concentration of the NaCl solution is 75 ppm, which corresponds to option (a).

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After the condensation part of the water cycle, the ocean water falls down as precipitation.

During the water cycle, ocean water first evaporates into the atmosphere due to the heat from the sun. This water vapor then cools and condenses to form clouds.

Once the clouds become heavy enough, the water falls back down to the Earth's surface as precipitation. This precipitation can then collect in lakes and streams or run off the Earth's surface, but it is important to note that these are steps that occur after the condensation part of the water cycle.

Therefore, the correct answer is that the ocean water falls down as precipitation after the condensation part of the water cycle.

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Answer:

d. NH4+ and C2H3O2- ions

Explanation:

When ammonium acetate (NH4C2H3O2) is mixed with water, it dissociates into its ions. In this case, it dissociates into NH4+ (ammonium ion) and C2H3O2- (acetate ion). Therefore, the solution will contain NH4+ and C2H3O2- ions dissolved in water.

The solution contains NH4+ and C2H302 ions. Among the given options, the correct answer is option d. It forms a solution containing NH4+ and C2H302 ions that are fully dissolved in the water.

When a chemist mixes ammonium acetate into 500 mL of water, the ammonium acetate (NH4C2H3O2) dissolves and dissociates into its constituent ions. This results in the formation of NH4+ ions (ammonium ions) and C2H3O2- ions (acetate ions) in the solution. Ammonium acetate is a salt that readily dissolves in water, dissociating into NH4+ and C2H302 ions. The aqueous solution will contain NH4+ ions and C2H3O2- ions, which are formed due to the dissociation of ammonium acetate in water. These ions will be dispersed throughout the solution and will not sink to the bottom.

In conclusion, when ammonium acetate is mixed into water, it forms a solution containing NH4+ and C2H302 ions that are fully dissolved in the water.

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The sigma bond between the two iodine atoms (\(I-I\)) in the triiodide ion, \(I_3^-\), is made up of a combination of hybridized \(sp^3d\) orbitals on each iodine atom. The  \(sp^3d\)  hybridization results from the mixing of one s, three p, and one d orbital. The approximate i-i-i bond angle in \(I_3^-\) is 180 degrees, indicating a linear geometry.

In the triiodide ion (\(I_3^-\)), each iodine atom (I) is connected to the other two through a sigma (σ) bond.

The sigma bond between two iodine atoms (I-I) is formed by the overlap of one \(sp^3d\) hybrid orbital on each iodine atom with the unpaired electron in the p orbital on the other iodine atom.

The three iodine atoms are positioned in a straight line due to the \(sp^3d\) hybridization of each iodine atom, which results in an arrangement of three orbitals around the central iodine atom

The approximate I-I-I bond angle in triiodide ion is 180 degrees since the molecule has a linear geometry.

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True. The reaction of sodium metal with water to form sodium hydroxide and hydrogen gas is highly exothermic, releasing a large amount of energy.

This reaction is also highly spontaneous, as it has a negative Gibbs free energy change (ΔG).

The spontaneity of the reaction can be explained by the fact that sodium metal has a lower electronegativity than hydrogen or oxygen, so it has a strong tendency to donate its electrons to these atoms to form stable ionic compounds.

The reaction also benefits from the increase in entropy that occurs as the solid sodium metal and liquid water are converted into the aqueous sodium hydroxide and gaseous hydrogen, increasing the disorder of the system.

Overall, the reaction is highly exothermic and spontaneous, making it a useful and commonly used method for producing hydrogen gas.

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Shaquana can use 2.3 gigabytes of data per month while staying within her budget of $48.40. Let's call the number of gigabytes of data Shaquana uses each month "x"

Her bill would be made up of the flat fee of $41.50 and the additional cost for data usage, which is $3 per gigabyte:

$41.50 + $3x

Now we can set this equal to the maximum amount she wants to spend, which is $48.40:

$41.50 + $3x = $48.40

Next, we'll isolate x by subtracting $41.50 from both sides:

$3x = $48.40 - $41.50

$3x = $6.90

Finally, we'll divide both sides by 3 to find x:

x = $6.90 ÷ $3

x = 2.3 gigabytes

So Shaquana can use 2.3 gigabytes of data per month while staying within her budget of $48.40.

Shaquana wants to stay within her monthly budget of $48.40 for her cell phone plan, which includes a flat fee of $41.50 and an additional charge of $3 per gigabyte of data used. To find out how many gigabytes of data she can use and still stay within budget, we can set up an equation. We start by adding the flat fee and the cost for data usage: $41.50 + $3x. Then, we set this equal to the maximum amount she wants to spend, $48.40. To isolate x, we subtract the flat fee from both sides and divide both sides by 3. Our answer is 2.3 gigabytes, which is the maximum amount of data Shaquana can use while staying within her budget.

This concept is about solving a mathematical equation to find the unknown value of a variable. In this case, the variable "x" represents the number of gigabytes of data Shaquana uses each month and the goal is to find the maximum amount of data she can use while staying within her budget. The equation is set up by adding the flat fee and the additional cost for data usage, which is $3 per gigabyte. To isolate the variable, the equation is manipulated by subtracting the flat fee and dividing both sides by 3. The final answer of 2.3 gigabytes represents the maximum amount of data Shaquana can use while staying within her monthly budget.

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Explanation:

1. Count each type of atom in reactants and products. ...

2. Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances. ...

3. Repeat steps 1 and 2 until the equation is balanced.

Answer:

Moon

Explanation:

The complete mechanism for the conversion of p-hydroxybenzaldehyde to 3-iodo-4-hydroxybenzaldehyde is as follows.

1. Deprotonation of the phenol: The base NaOCl (sodium hypochlorite) abstracts the hydrogen from the hydroxyl group on the p-hydroxybenzaldehyde, forming a phenoxide ion.

p-Hydroxybenzaldehyde + NaOCl → Phenoxide ion + NaCl + H2O

2. Formation of I-Cl: In a separate reaction, I2 (iodine) reacts with NaOCl (sodium hypochlorite) to form I-Cl (iodine monochloride) and NaI (sodium iodide).

I2 + NaOCl → I-Cl + NaI

3. Activation of the aromatic ring: The I-Cl (iodine monochloride) acts as an electrophile and reacts with the phenoxide ion, which acts as a nucleophile. This results in the substitution of the hydrogen atom at the ortho position of the phenoxide ion with the iodine atom.

Phenoxide ion + I-Cl → 3-Iodo-4-hydroxybenzoate ion + Cl^-

4. Protonation of the phenoxide ion: The 3-iodo-4-hydroxybenzoate ion is protonated, converting it back to the phenol form, resulting in the final product, 3-iodo-4-hydroxybenzaldehyde.

3-Iodo-4-hydroxybenzoate ion + H2O → 3-Iodo-4-hydroxybenzaldehyde + OH^-

So, the overall mechanism involves deprotonation of the phenol, formation of I-Cl, activation of the aromatic ring as a nucleophile, and finally the protonation of the phenoxide ion to give the desired product, 3-iodo-4-hydroxybenzaldehyde.

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Answer:

The answer is 4.

Explanation:

Finches.

Answer:

4. Finches

Darwin studied the forms of the beak, and found that they were different based on what they ate.

Answer:

c

Explanation:

Answer:

240

Explanation:

15 POUNTS 240