bromothymol blue (btb) is a chemical that indicates the presence of carbon dioxide in water. if a beaker of water is mixed with btb, what color will water turn to determine if there is a large amount of carbon dioxide present in the water

Answer:

The mass of sodium hydroxide will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in a lower total mass of sodium chloride and water

The mass of hydrochloric acid will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in the same total mass of sodium chloride and water

Explanation:

Answer:

The mass of sodium hydroxide will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in a lower total mass of sodium chloride and water

The mass of hydrochloric acid will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in the same total mass of sodium chloride and water

Explanation:

The chemical condition that describes the electrons in a water molecule being shared unequally between the hydrogen and oxygen atoms is called polar covalent bonding.

In polar covalent bonds, the electrons are unequally shared due to the electronegativity difference between the atoms involved. In the case of a water molecule, oxygen is more electronegative than hydrogen, causing the oxygen atom to attract the shared electrons more strongly.

As a result, the oxygen atom becomes slightly negatively charged while the hydrogen atoms become slightly positively charged. This polarity gives water its unique properties, such as its ability to form hydrogen bonds and its high surface tension.

In summary, that this describes the unequal sharing of electrons in a water molecule due to the electronegativity difference between hydrogen and oxygen atoms.

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Answer:

See explanation

Explanation:

Answer:

A i believe

Explanation:

Answer:

double displacement reaction also neutralization reaction cause of acid and base

Answer:

Double Replacement Reaction

Explanation:

KOH + H₃PO₄ --> K₃PO₄ + H₂O

AB + CD --> AD + BC

K goes with PO4 and H goes with OH

Answer:

The correct answer is (A) "the molar amount of the gas".

Explanation:

I got it correct on Edge.

Answer:

b. biosphere

do to the plant being a plant it is in the biosphere

Answer: The quantity of solute particles in a solution determines its colloidal qualities, not its chemical composition. Boiling point elevation and freezing point depression are two widely researched colligative features.

Explanation: Sugar is a non-electrolyte solute that does not separate into ions in water (C12H22O11). The amount of dissolved sucrose molecules affect the colloidal characteristics of the substance.

Urea, or CO (NH2)2, is a solute that quickly dissociates into ions in water. Compared to non-electrolytes like sucrose, it adds more particles to the solution, which has a greater impact on the colligative qualities.

Answer:

107.9

Explanation:

Answer:

B. Impulse

Explanation:

A= she is not resisting buying the car

B= She bought the car right away(impulse)

C = She did not plan ahead on what car she would buy

D= Not reasonable

Answer:Transcript A liquid’s vapor pressure is directly related to the intermolecular forces present between its molecules. The stronger these forces, the lower the rate of evaporation and the lower the vapor pressure.

Explanation:

As vapors are produced more from a liquid there will be more cooling effect as vapors are inversely proportional to the boiling point that means lesser the boiling point better will be the evaporation.

Intermolecular forces are the forces present between the molecules and liquid’s vapor pressure is directly related to the intermolecular forces as well . The stronger these forces, the lower the rate of evaporation and the lower the vapor pressure.

Therefore, the relationship between the vapor pressure of a liquid and how well it cools by evaporation is having direct proportionality.

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Accrued expenses is the most likely item on the income statement and balance sheet to vary spontaneously with sales (option 3).

Accrued expenses refer to an expense that a company has incurred but has not yet paid for. For example, wages that employees have earned but not yet received payment for, rent, interest, and taxes that have been accrued but not yet paid are all examples of accrued expenses.

Accrued expenses are spontaneous liabilities, which means they vary in proportion to a company's sales volume. The higher the sales, the more the company is likely to owe in accrued expenses. The company must record the accrued expenses as liabilities on the balance sheet and as expenses on the income statement.

Accrued expenses are likely to increase when sales volume increases, and they decrease when sales volume decreases. It means that accrued expenses are the most likely item on the income statement and balance sheet to vary spontaneously with sales.

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Answer:

your answer would be force

Explanation:

Zoloft (sertraline) comes under Selective serotonin reuptake inhibitor (SSRI) antidepressants

Mellaril (thioridazine) comes under Typical antipsychotics

Thorazine (chlorpromazine)comes under Typical antipsychotics

Valium (diazepam)comes under Anti-anxiety agents

By raising serotonin levels in the brain, SSRIs alleviate depression. One of the chemical messengers, or neurotransmitters, that communicate between brain nerve cells is serotonin (neurons). Serotonin reabsorption (reuptake) into neurons is inhibited by SSRIs.

Typical antipsychotics can be used to treat conditions like extreme agitation or schizophrenia.

a medication used to alleviate anxiety symptoms such the fear, dread, unease, and tightness in the muscles that can happen when under stress. The majority of anti-anxiety medications prevent particular nervous system molecules from acting. Additionally known as anxiolytic and anxiolytic agent.

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Answer: 4.5 moles of \(H_{2}\) can be made from complete reaction of 3.0 moles of Al.

Explanation:

The given reaction equation is as follows.

\(2Al + 6HCl \rightarrow 2AlCl_{3} + 3H_{2}\)

This shows that 2 moles of Al reacts with 6 moles of HCl. So, the amount of HCl required to react with 1 mole Al is three times the amount of HCl.

Therefore, 3 moles of Al will react with 9 moles of HCl to give 3 moles of \(AlCl_{3}\) and \(\frac{9}{2}\) moles of \(H_{2}\).

The reaction equation now will be as follows.

\(3Al + 9HCl \rightarrow 3AlCl_{3} + \frac{9}{2}H_{2}\)

The moles \(\frac{9}{2}\) can also be written as 4.5 moles.

Thus, we can conclude that 4.5 moles of \(H_{2}\) can be made from complete reaction of 3.0 moles of Al.

4.5 moles of H2 can be made from complete reaction of 3.0 moles of Al with hydrogen chloride.

STOICHIOMETRY:

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Step 1:

ok we have to use the formula PV=nRT

p=Pressure (must be converted to atm)= 780 mmHg

1 amt= 760 mmHg use this as a conversion factor

780 mmHg (1 atm/760 mmHg)= 1.026

V= Volume= 5.00 mL = o.5 L

n=number of moles which we have to find first

R= 0.0821

T(convert to Kelvins by adding 273.15 to the celsius temperature)= 135 C + 273.15= 408.15 k

Now plug in->

(1.026 atm)(o.5 L)= n(0.0821)(408.15 K)

(1.026 atm)(0.5 L)= n(33.509115)

(0.513)= n(33.509115)

n(number of moles)= 0.01532 mol

Now we have to convert to moles using Avagodro's number which states that 1 mol = 6.022 x 10^23 molecules or atoms

So 0.01532 mol (6.022 x 10^23 number of molesules)/ (1 mol) = 9.225704 x 10^21 = 9.226 x 10^21 colecules

Step 2

You must transfer pressure into pascals, 780 mm Hg = 103991 Pa

135*C = 408.15 k

then from the equation pV = nRt

n = pV / RT (T in Kelvins, V in M^3)

n = 103991 x 500 x 10^-6 / (8.314 x 408.15)= 0.015322 moles of N2

1 mol of everything is 6.022 x 10^23 particles, so 0.15322 moles is 0.15322 x 6.022 x 10^23 = 9.2269084 x 10^21 molecules

Explanation:

Hope this helps :)

Answer:

The electron configuration of nitrogen (N) is 1s²2s²2p³ . The electron configuration of an atom describes the distribution of electrons among different energy levels and orbitals. The first number in the electron configuration represents the principal energy level, while the letter represents the sublevel (s, p, d, or f). The superscript number represents the number of electrons in that sublevel .

The electron configuration of nitrogen (N) is 1s²2s²2p³. The correct option is 1.

An atom's electron configuration specifies how its electrons are dispersed throughout the various energy levels and orbitals.

The electron configuration of nitrogen (N), which has an atomic number of 7, is 1s²2s²2p³.

Nitrogen has a total of 7 electrons in this arrangement. The first energy level (1s) is completely occupied by two electrons, and the second energy level (2s) is also completely occupied by two electrons.

The remaining three electrons are in the 2p orbital. The 2p orbital is broken down into three suborbitals: 2px, 2py, and 2pz. Each suborbital may carry a maximum of two electrons, accounting for the three electrons in nitrogen's 2p³ structure.

Thus, the correct option is 1.

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Your question seems incomplete, the probable complete question is:

The electron configuration of nitrogen (N) is

Answer:

4.95

Explanation:

1.00 M H2A

1.38 m NaOH

Titration = 200.0 mL

Calculate moles of NaOH

= \(\frac{100*1.38}{300}\)  = 0.46

calculate moles of H2A

= \(\frac{200 * 1.0}{300}\) = 0.667

therefore the moles of acid left = moles of H2A - moles of NaOH

                                                    = 0.667 - 0.46 = 0.207

pka = - log( ka )

       = - log ( 2.5 * 10^-5 ) = 4.61

calculate PH after 100 ml of 1.38 M NaOH have been added

PH = pka + log \((\frac{salt}{acid} )\)

     = 4.61 + log \((\frac{0.46}{0.207} )\) = 4.95

TNT (Trinitrotoluene) has relatively small energy per pound, but it is a very effective explosive due to the following reasons:

1. It is an insensitive explosive: TNT has a high ignition temperature, making it less prone to accidental detonation. TNT can also resist shock and friction, making it a stable explosive.

2. High detonation velocity: TNT is capable of detonating at a speed of 6,900 m/s. This high velocity allows TNT to produce a supersonic shockwave that can cause significant damage to its surroundings.

3. High gas yield: When TNT explodes, it produces a large amount of gases, which further increases the pressure exerted on its surroundings. This high-pressure shockwave causes significant damage to buildings and structures.

4. Easy to manufacture: TNT is relatively easy and cheap to manufacture, making it a popular explosive for military and industrial applications.

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1.0608 mol/L is the concentration of the compound measured using UV/Vis spectrophotometer.

The equation for the Beer-Lambert Law has the following structure:

A=E×b×c

Where b is the sample's route length, E is the molar absorptivity, A is absorbance, and c is the compound's concentration in solution.

In question: E is 0.296 m- 1cm-1. A is .314 and path length is 1.00 cm.

By adding values in formula the answer is 1.0608 mol/L.

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The order of formation of coal types from lower burial depths and temperatures to higher is peat, lignite, sub-bituminous, bituminous, and anthracite.

Coal is a fossil fuel formed from the remains of plants that lived and died millions of years ago. The type of coal formed depends on the depth of burial and the amount of heat and pressure applied to the plant material over time. The following is the order of formation of coal types from lower burial depths and temperatures to higher:

1. Peat: This is the earliest stage of coal formation and is formed from the accumulation of plant material in wetlands. Peat is partially decomposed plant matter that has not been subjected to high temperatures or pressure.

2. Lignite: This is the next stage of coal formation and is formed from the compaction and heating of peat. Lignite is a soft, brownish-black coal with a high moisture content and a low energy content.

3. Sub-bituminous: This is the next stage of coal formation and is formed from the further compaction and heating of lignite. Sub-bituminous coal is a dull black coal with a lower moisture content and a higher energy content than lignite.

4. Bituminous: This is the most common type of coal and is formed from the further compaction and heating of sub-bituminous coal. Bituminous coal is a dense, black coal with a high energy content and a low moisture content.

5. Anthracite: This is the highest grade of coal and is formed from the further compaction and heating of bituminous coal.

The order of formation of coal types from lower burial depths and temperatures to higher is peat, lignite, sub-bituminous, bituminous, and anthracite.

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884.99 g of copper(II) sulfide would be formed if 18.5 moles of copper reacts.

The balanced equation for the reaction between copper and sulfur is:

2 Cu + S₈ → 2 CuS

This equation shows that 2 moles of copper react with 1 mole of sulfur to produce 2 moles of copper(II) sulfide.

Therefore, for every 2 moles of copper that react, 2 moles of copper(II) sulfide are produced.

To determine the mass of copper(II) sulfide formed, we need to know the mass of copper that reacted. We can use the molar mass of copper to convert the number of moles of copper to its mass:

m(Cu) = n(Cu) × M(Cu)

m(Cu) = 18.5 mol × 63.55 g/mol

m(Cu) = 1174.18 g

So, 1174.18 g of copper reacted. Using the stoichiometric coefficients from the balanced equation, we can calculate the number of moles of copper(II) sulfide formed:

n(CuS) = n(Cu) / 2

n(CuS) = 18.5 mol / 2

n(CuS) = 9.25 mol

Finally, we can use the molar mass of copper(II) sulfide to convert the number of moles to its mass:

m(CuS) = n(CuS) × M(CuS)

m(CuS) = 9.25 mol × 95.61 g/mol

m(CuS) = 884.99 g

Therefore, 884.99 g of copper(II) sulfide would be formed if 18.5 moles of copper reacts.

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Based on the results obtained in the table, the solute is a solid because it has an increase in the amount dissolved as temperature increases.

The correct option is B.

The average kinetic energy of the solute molecules increases along with the solution's temperature. As a result, the molecules have a lower ability to bind together and dissolve more easily. Therefore, when the temperature rises, solid states become more soluble.

However, for solutes that are gas, an increase in temperature decreases the solubility of the gas, and the gas comes out of the solution.

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Here are the solutions to the problems you've presented:

a) 52.30 ounces is equal to 1547 milliliters
b) 52 cm is equal to 20.47 inches
c) 16.90 pounds is equal to 7669 grams
d) (140.567 + 12.209)/13.0 = 11.75

a) Convert 52.30 ounces to milliliters:
1 ounce = 29.57 milliliters
52.30 ounces * 29.57 milliliters/ounce = 1547 milliliters (rounded to the correct significant figures)

b) Convert 52 cm to inches:
1 inch = 2.54 cm
52 cm * 1 inch/2.54 cm = 20.47 inches (rounded to the correct significant figures)

c) Convert 16.90 pounds to grams:
1 pound = 453.6 grams
16.90 pounds * 453.6 grams/pound = 7669 grams (rounded to the correct significant figures)

d) Calculate (140.567 + 12.209)/13.0:
(140.567 + 12.209) / 13.0 = 11.75 (rounded to the correct significant figures)

Here are your final answers:
a) 52.30 ounces is equal to 1547 milliliters
b) 52 cm is equal to 20.47 inches
c) 16.90 pounds is equal to 7669 grams
d) (140.567 + 12.209)/13.0 = 11.75

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Answer:

(Click here to get an answer to your question ✍️ 0.385g of 17Cl is how many atoms?).

Explanation:

Answer:

1 atom of zirconium

Explanation:

Zirconium sulfide or zirconium disulphide can be written as ZrS2.

Answer:

Yes!

Explanation:

You certainly could form something. It would be written as H02 and it is called Hydroperoxyl. This is formed by the transfer of a hydrogen atom to an oxygen atom.

Answer:

there are 7. 505 x 1022 atoms in 3.5 grams of silicon.

Explanation:

So, 1 mole of silicon will have a mass of 28.0855 g and the number of atoms will be 6.022 x 1023. Therefore, there are 7. 505 x 1022 atoms in 3.5 grams of silicon.

Answer:

1 mole of silicon will have a mass of 28.0855 g and the number of atoms will be 6.022*1023 . Therefore , there are 7.505*1022 atom in 3.5 g of silicon .