When Silver (Ag) forms a metallic bond with other Silver atoms, what do the valence electrons move into? A. the all go to the same Silver atom B. the bond with the oxygen in the atomsphere C. they escape to free space D. the sea of electrons

Answer:

ZnO + 2HCl → ZnCl₂ + H₂O

Explanation:

The unbalanced reaction between zinc oxide (ZnO) and dilute hydrochloric acid (HCl) is:

Now we'll procede to balance the equation:

The number of atoms for each element is the same on both sides, so the equation is now balanced.

The molar solubility of substance X is approximately 2.43×10^(-8) mol/L.

To find the molar solubility of a substance, we need to convert the solubility from grams per liter (g/L) to moles per liter (mol/L) using the molar mass of the substance.

Given:

Solubility of substance X = 5.2×10^(-6) g/L

Molar mass of substance X = 214 g/mol

To find the molar solubility, we can use the following steps:

Convert the solubility from grams to moles using the molar mass:

Moles of X = Solubility / Molar mass = (5.2×10^(-6) g/L) / (214 g/mol)

Convert the moles of X to moles per liter (mol/L):

Molar solubility of X = Moles of X / Volume (in liters)

Since the solubility is given in grams per liter, the volume is already in liters.

Let's perform the calculation:

Molar solubility of X = (5.2×10^(-6) g/L) / (214 g/mol) ≈ 2.43×10^(-8) mol/L

Therefore, the molar solubility of substance X is approximately 2.43×10^(-8) mol/L.

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Answer:

temperatures within the outer core range from 7,200 to 9,000 F. Pressure also increases in the outer core due in part to the weight of the crust and mantle above.The Earth's magnetic field is generated by the outer core.

Explanation:

Answer:

atomic weight..................

The increasing order of electronegativity from lowest to highest in period 3 is sulfur, argon and chlorine. With highest being of chlorine.

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The correct answer is 107.9 g of Ag is produced from a reaction of 31. 75 gram of Copper.

Molar mass of a substance is the mass in grams of one mole of the compound. A mole is the measurement of the number of things, such as atoms, molecules, and ions, that are present in a substance. Any material has 6.022 x 1023 molecules in a mole, it is known as Avogadro's number . The mole is used to determine the size of the tiniest entities quantitatively, just as we use a standard value to quantify many things, such as 1 dozen = 12 items.

Formula - Molar mass = mass in grams/mole = g/mol

Molar mass of a substance can be calculated as:

Given,

n = W/M, where

W = required mass

M= molar mas

Given chemical reaction is:

Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

From the stoichiometry of the reaction,

1 mole of Cu = produce 2 moles of Ag

Given mass of Cu = 31.75g

Molar mass of Cu = 63.5g/mol

Moles of Cu = 31.75g / 63.5g/mol = 0.5 moles

0.5 moles of Cu = produce 2×0.5 = 1 mole of Ag

Molar mass of Ag = 107.9g/mol

Required mass of Ag = 1mol × 107.9g/mol = 107.9 g

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Option A.

The number of molecules of carbon tetrachloride in 6.32 mg of the compound is 2.47 x 10¹⁹ molecules.

The molecular mass of Carbon tetrachloride is calculated as follows;

Molecular formula = CCl₄

CCl₄ = (12) + (35.5 x 4)

CCl₄ = 154 g/mol

The number of moles of carbon tetrachloride in 6.32 mg is calculated as follows;

n = reacting mass / molar mass

n = (6.32 x 10⁻³) / (154)

n = 4.1 x 10⁻⁵ moles

1 mole of CCl₄ = 6.02 x 10²³ molecules

4.1 x 10⁻⁵ moles of CCl₄ = ?

= 2.47 x 10¹⁹ molecules

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Answer:

The aroma from a lighted scented candle is released through the evaporation of the fragrance from the hot wax pool and from the solid candle itself. Like unscented candles, properly-formulated scented candles will primarily produce water vapor and carbon dioxide when burned

Explanation:

Answer:

Q    Line     A

A: (a) 0 (b) 20

B: (b) 10 (c) 10

C: (c) 10 (d) 10

D: (d) 10 (e) 13

E: (e) 13 (f) 0

F: (f) 0 (g) 0

a: The velocity is whatever you need to see when you are specifically using a numberline so the answer for a is just 10

b: The velocity for this one is not as easy as the last one, its 7.

Explanation:

When you have a number line and your trying to find a numberline, you just have to subtract the smaller line to the largest number but if you are trying to find the velocity in beetween more than one thane you add the two biggest ones and subtract the smallest one and if you make a wrong move like add the biggest and smalles youll... still get the same answer so it doesnt matter really but its just easier to do the smallest one as the subtracting number just FYI. Happy spring break!

The null hypothesis is rejected when the chi-square value is higher than the critical value or p-value. In this case, the chi-square value of 6.4 is higher than the critical value for a p-value of 0.05, which is 3.84. Therefore, the null hypothesis is rejected.

A cross results in three phenotypes. A null hypothesis of recessive epistasis is tested. Your calculated chi-square value is 6.4. Assuming a p-value of 0.05, do you reject the null hypothesis?The answer is yes.What is a chi-square value?A chi-square value is a measure of how different two sets of data are. It compares the observed data to the expected data and generates a statistic that shows how far apart they are. It compares the observed data to the expected data and generates a statistic that shows how far apart they are. The chi-square test is a statistical hypothesis test that is used to determine if there is a significant difference between two groups of data. The null hypothesis is rejected when the chi-square value is higher than the critical value or p-value. In this case, the chi-square value of 6.4 is higher than the critical value for a p-value of 0.05, which is 3.84. Therefore, the null hypothesis is rejected.

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Answer:

It falls in Liquid and Solid.

Explanation:

Answer:

motion of molecules because we gonna see which one is in a solid state and what's so ever

Answer:

The correct answer is the final pair: C4H10 and C2H5

Explanation:

Took the test and it was right. :)

\(C_4H_{10}\) and \(C_2H_5\) pair of compounds have the same empirical formula.

A chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule \(CH_2O\) is the empirical formula for glucose.

An empirical formula is the chemical formula of a compound that gives the proportions (ratios) of the elements present in the compound but not the actual numbers or arrangement of atoms.

This would be the lowest whole number ratio of the elements in the compound.

Hence, option D is correct.

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Buffer solutions help to maintain a relatively constant pH in living things. A buffer solution is a solution that resists changes in pH when small amounts of an acid or a base are added to it.

This is achieved by having a mixture of a weak acid and its corresponding salt or a weak base and its salt. The weak acid and base in the buffer will neutralize each other, maintaining the pH of the solution relatively constant.

Buffer solutions are commonly found in living systems and play an important role in maintaining the pH of body fluids within a narrow range that is optimal for proper functioning of enzymes and other cellular components.

It is important to note that buffer solutions do not always have a pH of 7. They can have a pH that is either acidic or basic, depending on the weak acid and salt present in the solution. Additionally, while buffer solutions can help to resist changes in pH when small amounts of an acid or base are added, they will not necessarily cause a lowering of pH when acids are added to them.

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Answer:

As a scientist employed by a manufacturer of cookware, I would recommend using alumina (Al2O3) as the material for a ceramic baking dish.

Answer:

Jupiter

Explanation:

it's big and the ring around it

The mixture contains a concentration of monoprotic acetic acid of

(8.36 M). (0.0083592 mol/1000 mL = 8.36 M) = 0.258 M x 32.40 mL/1000 L.

Monoprotic acids include benzoic acid (C6H5CO2H), acetic acid (CH3CO2H or HOAc), nitric acid (HNO3), and hydrochloric acid (HCl).

H2SO4 and H3PO4 are examples of polyprotic acids that contain two or three hydrogen ions. Although it is alluring to believe that polyprotic acids are more powerful than monoprotic acids since they include several hydrogen ions, this is not the case.

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Answer:

:)

Explanation:

They are all properties of Matter. weight and formula wouldn't make sense.

Answer:

100 N north and 100 N south

The latent heat of vaporization causes water sprinkled on the ground or roof to evaporate, producing a cooling effect.

Vaporization is defined as the process of changing a substance's liquid or solid state into its gaseous (vapor) state. Boiling and evaporation are the two processes that cause vaporization. When water is exposed to sunlight, evaporation takes place when the water turns into vapour and rises into the atmosphere. Boiling is the process of vaporizing a liquid when the environment permits the development of vapor bubbles inside the liquid.

After a while, this evaporation in the case of the ground cools the space around it, whereas in the case of the roof, the room below is chilled. The significant latent heat of vaporization of water contributes to cooling the hot surface, which is why evaporation of water has a cooling effect. The water quickly evaporates from the hot road surface, removing heat from it in the process.

Thus, the latent heat of vaporization causes water sprinkled on the ground or roof to evaporate, producing a cooling effect.

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The order of increasing rate of effusion is: C₂H₆ < PH₃ < HCl < Ar.

The rate of effusion for a gas depends on its molar mass and the temperature. According to Graham's law of effusion, the rate of effusion is inversely proportional to the square root of the molar mass. Therefore, gases with lower molar masses will effuse faster than those with higher molar masses at the same temperature.

To arrange the gases in order of increasing rate of effusion, we need to compare their molar masses:

Ar (argon): Molar mass = 39.95 g/mol

HCl (hydrogen chloride): Molar mass = 36.46 g/mol

PH₃ (phosphine): Molar mass = 33.99 g/mol

C₂H₆ (ethane): Molar mass = 30.07 g/mol

Now, we can compare the molar masses and determine the order of increasing rate of effusion:

C₂H₆ (ethane): It has the lowest molar mass among the given gases, so it will have the highest rate of effusion.

PH₃ (phosphine): It has a higher molar mass than ethane but lower than hydrogen chloride and argon. Therefore, it will have a higher rate of effusion compared to hydrogen chloride and argon but lower than ethane.

HCl (hydrogen chloride): It has a higher molar mass than both ethane and phosphine. Hence, it will have a lower rate of effusion than ethane and phosphine.

Ar (argon): It has the highest molar mass among the given gases, so it will have the lowest rate of effusion.

Therefore, the order of increasing rate of effusion is:

C₂H₆ < PH₃ < HCl < Ar

In summary, ethane (C₂H₆) will have the highest rate of effusion, followed by phosphine (PH₃), hydrogen chloride (HCl), and finally, argon (Ar), which will have the lowest rate of effusion.

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Answer: In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Explanation:

Please give me the BRAINLIEST if answer right but if not sorry.

Answer:

See the answer below

Explanation:

No, water cannot be used to remove stains from the permanent makers. However, alcohol can be used.

Since the inks of permanent markers are insoluble in water, trying to clean a stain created by a permanent marker with water would be a waste of effort. Only alcohols can be used to successfully remove the stain because the inks will dissolve in the alcohols.

Possible answer could be 900 or 450.

Taking into account the reaction stoichiometry, if 410.42 grams of SO2 are produced, 307.815 grams of O₂ were reacted.

In first place, the balanced reaction is:

2 ZnS + 3 O₂ → 2 ZnO +2 SO₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: If by reaction stoichiometry 128 grams of SO₂ are produced by 96 grams of O₂, 410.42 grams of SO₂ are produced by how much mass of O₂?

mass of O₂= (410.42 grams of SO₂ ×96 grams of O₂)÷128 grams of SO₂

mass of O₂= 307.815 grams

Finally, 307.815 grams of O₂ is required.

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The energy required to excite a hydrogen electron from the ground state to n=5 is 1.94 x 10^-19 J.

The energy required to excite a hydrogen electron from the ground state to n=5 can be found using the formula for the energy of a photon:

The energy of a photon = hc/λ

where h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.

The energy required to excite an electron from one energy level to another is equal to the energy of the photon that is absorbed or emitted in the process.

We can use the Rydberg formula to find the wavelength of the photon involved: 1/λ = R(1/n₁² - 1/n₂²) where R is the Rydberg constant (1.097 x 10^7 m^-1), and n₁ and n₂ are the initial and final energy levels, respectively.

For this question, we are looking for the energy required to excite an electron from the ground state (n₁ = 1) to n = 5. Using the Rydberg formula, we can find the wavelength of the photon involved:

1/λ = R(1/n₁² - 1/n₂²)1/λ = (1.097 x 10^7 m^-1)(1 - 1/25)1/λ = (1.097 x 10^7 m^-1)(24/25)1/λ = 1.045 x 10^7 m^-1λ = 9.563 x 10^-8 m

Now we can use the formula for the energy of a photon to find the energy required to excite the electron:

E = hc/λE = (6.626 x 10^-34 J s)(3.00 x 10^8 m/s)/(9.563 x 10^-8 m)E = 2.08 x 10^-18 J

However, this is the energy of the photon, not the energy required to excite the electron.

To find the energy required to excite the electron, we need to subtract the energy of the electron in the ground state from the energy of the electron in the excited state:

E = E₂ - E₁ where E₂ is the energy of the electron in the excited state (n = 5), and E₁ is the energy of the electron in the ground state (n = 1). The energy of the electron in the ground state is given by: E₁ = -13.6 eV

The energy of the electron in the excited state can be found using the formula:

E = -13.6 eV/n²E₂ = -13.6 eV/5²E₂ = -0.544 eV

Now we can calculate the energy required to excite the electron:

E = E₂ - E₁E = (-0.544 eV) - (-13.6 eV)E = 13.056 eV = 1.94 x 10^-19 J

Therefore, the energy required to excite a hydrogen electron from the ground state to n=5 is 1.94 x 10^-19 J.

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The change described in the process of reconstituting frozen orange juice is a physical change. A physical change refers to a transformation that affects one or more physical properties of a substance, such as its size, shape, or state, without altering its chemical composition.

Adding water to frozen orange juice to reconstitute it causes a change in its volume, but it does not create new substances or cause a chemical reaction. Therefore, it is considered a physical change. Other examples of physical changes include cutting an apple, melting ice, and boiling water.

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Answer:

High-frequency sound waves have a shorter wavelength and a higher amplitude than low frequency sound waves.

Answer:

Hydrogen bonding

Explanation:

When Hydrogen interacts with a halogen, it forms hygrogen bonding with that halogen(eg. F, CL, I.... N and O) . Hydrogen bonding is the strongest form of covalent bonding