1) If 6.00 grams of gaseous hydrogen reacts with 16.0 grams of gaseous oxygen to form water vapor,
a) Write and balance the chemical equation.
c) determine the grams of gaseous water

The number of molecules in the permanganate is 4.8 * 10^22 molecules

We know that if we are to obtain the number of molecules form the number of the moles of the substances then as a matter of necessity we would have to turn to the Avogadro's law and that is what we are going to do here.

We have that;

If 1 mole contains about 6.02 * 10^23 molecules

0.08 moles would contain 0.08 * 6.02 * 10^23/ 1

= 4.8 * 10^22 molecules

Hence, we have about 4.8 * 10^22 molecules in the permanganate

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The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

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Balanced equation is same as the following reaction between a weak acid and a strong base. NH4Cl + KOH.

strong base is a compound that can remove a proton from a very weak acid. In water, they completely dissociate into its ions. Potassium hydroxide (KOH) and sodium hydroxide are two examples (NaOH) When dissolved in solutions, weak acids do not completely dissociate into their constituent ions. When dissolved in water, an equilibrium between the concentrations of the weak acid and its constituent ions is established. Strong bases are those that completely ionise in water and produce a large amount of hydroxide ions. Weak bases are those that ionise partially in water and produce a small amount of hydroxide ions. NaOH and KOH are powerful bases. Weak bases include NH4OH, Ca(OH), and Mg(OH).

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Explanation:

decrease T = eq shifts left, because youre taking energy from the system and this is an endothermic reaction, it needs energy to make products = co2 concentration decreases

add CO = eq shifts right, because you're adding reactants in the equilibrium = i2o5 concentration decreases

increase i2o5 = same = can't affect T

decrease co2 = eq shifts right, because by

decreasing co2 you'll have less of this product than you normally have in the equilibrium, then eq will shift toward making more product = both reactants, CO and I2O5 decrease their concentration because they're being used to shift equilibrium right

To predict the products of such a reaction, see what happens if the chemical breaks into smaller, familiar products such as water, carbon dioxide, or any of the gaseous elements

AgNO3+Na2SO4→AgSO4+2NaNO3 is an exchange reaction.

Na + O2→ Na2O .

is an exchange reaction.

Thus, we refer to these processes as redox. Na is oxidized by losing electrons in reaction (a), while O is reduced by gaining electrons, forming O2-ions.

A single-displacement reaction would be Mg + HBr > MgBr2 + H2 HBr + Mg. In this process, magnesium creates magnesium bromide by swapping out hydrogen from HBr (MgBr2).

The decomposition process CuSO4(aq) + Zn(s) ZnSO4(aq) + Cu(s) is an illustration.

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Answer:

Explanation:

An element with 70 protons and a mass of 170 would be considered radioactive.

In general, an element with an atomic number (number of protons) greater than 82 tends to be radioactive. Since the element in question has 70 protons, which is less than 82, it does not fall into the category of naturally radioactive elements. However, it is important to note that the stability of an element also depends on the balance between protons and neutrons in the nucleus. Without information about the number of neutrons in the nucleus, we cannot determine the stability of this specific element definitively.

Explanation:

N₂ (g) + 3 H₂ (g) ---> 2 NH₃ (g) ∆H° = - 91.8 kJ/mol

According to the ∆H° of reaction, when 1 mol of NH₃ is produced -91.8 kJ are released. We have to find the moles of H₂ nequired to produce -8301 kJ.

First we have to calculate the number of moles of NH₃ that should be produced in order to release that amount of heat.

moles of NH₃ = -8301 kJ * 1 mol/(-91.8 kJ)

moles of NH₃ = 90.42 mol

According to the coefficients of the reaction's equation 2 moles of NH₃ will be produced by 3 moles of H₂. The molar ratio between H₂ and NH₃ is 3 to 2. We can use that relationship to find the answer to our problem.

3 moles of H₂ = 2 moles of NH₃

moles of H₂ = 90.42 moles of NH₃ * 3 moles of H₂/(2 moles of NH₃)

moles of H₂ = 135.6 moles

Answer: 135.6 moles of H₂ are required.

Answer:

A

Explanation:

because tides can result to change in cureent of ocean

If it has been discovered that a building has been blown up using TNT, the investigators should look for evidence of both primary and triggering explosives. The correct answers are options A and C.

Primary explosives are typically used to initiate the detonation of a larger amount of explosive. In the case of a TNT explosion, primary explosives could have been used to set off the TNT itself.

Low explosives, such as gunpowder, can be used to create a slower-burning fuse that ignites the primary explosives.

Triggering explosives, such as detonators, are used to set off the primary explosives. They can be electric or non-electric.

Reactionary explosives are those that react with other materials to cause an explosion. They are not typically used in the initiation of an explosion and are therefore less relevant in this context.

Therefore, options A and C are correct.

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Answer:

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Explanation:

The esterification reaction is a name reaction in organic chemistry, where it is called Fischer esterification. In addition, when the reverse reaction is promoted by using a base, it is called a saponification reaction.

Answer:

The esterification reaction is a name reaction in organic chemistry, where it is called Fischer esterification. In addition, when the reverse reaction is promoted by using a base, it is called a hydrolysis reaction.

Explanation:

The Fischer esterification is a type of organic reaction that involves the conversion of a carboxylic acid and an alcohol into an ester and water, catalyzed by an acid catalyst. This reaction is named after its discoverer, Emil Fischer, a German chemist who first described the reaction in 1895.

The general equation for Fischer esterification is:

Carboxylic acid + Alcohol → Ester + Water

For example, the reaction between acetic acid and ethanol to form ethyl acetate (a commonly used solvent and flavoring agent) can be represented as follows:

CH3COOH + C2H5OH → CH3COOC2H5 + H2O

The Fischer esterification is an important reaction in organic chemistry because esters are important compounds in a variety of applications, including the food industry (as flavorings and fragrances), the pharmaceutical industry (as intermediates in the synthesis of drugs), and the polymer industry (as monomers).

When the reverse reaction of Fischer esterification is promoted by using a base, it is called a hydrolysis reaction. Hydrolysis is the process of breaking down a compound by adding water. In the case of esters, hydrolysis occurs when the ester bond is broken by the addition of water, yielding a carboxylic acid and an alcohol.

The general equation for hydrolysis of an ester is:

Ester + Water → Carboxylic acid + Alcohol

For example, the hydrolysis of ethyl acetate can be represented as follows:

CH3COOC2H5 + H2O → CH3COOH + C2H5OH

Hydrolysis of esters is an important reaction in organic chemistry because it is a common route for the degradation of esters in nature, as well as in many industrial processes where it is used for the production of carboxylic acids and alcohols.

Answer:

5

Explanation:

The observation that compound A releases H2 gas while compound B does not when treated with Na metal can be explained by considering the structural differences between the two compounds and their ability to undergo specific reactions.

Compound A and compound B both have the molecular formula C₂H₆O, which indicates that they both contain two carbon atoms, six hydrogen atoms, and one oxygen atom. However, the difference lies in the arrangement of these atoms within the molecules. One possible explanation for the observed difference is that compound A is an alcohol, specifically ethanol (CH₃CH₂OH), while compound B is an ether, such as dimethyl ether (CH₃OCH₃). The presence of the hydroxyl group (-OH) in ethanol enables it to undergo a reaction with sodium metal, known as the metal-acid reaction. In this reaction, the metal displaces the hydrogen from the hydroxyl group, forming sodium ethoxide (CH₃CH₂ONa) and releasing hydrogen gas (H₂). On the other hand, ethers like dimethyl ether lack the hydroxyl group and therefore cannot undergo the metal-acid reaction. Consequently, when compound B is treated with sodium metal, no hydrogen gas is released. The ability of compound A to release hydrogen gas while compound B does not when treated with sodium metal can be attributed to the presence of a hydroxyl group in compound A (ethanol), enabling it to undergo a metal-acid reaction, whereas compound B (dimethyl ether) lacks the necessary functional group and thus does not undergo this reaction.

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The bond between hydrogen (H) and oxygen (O) (option 3: H-O) has the highest electronegativity difference (1.24). Therefore, the H-O bond is the most polar among the given choices.

The polarity of a chemical bond depends on the electronegativity difference between the two atoms involved. The greater the electronegativity difference, the more polar the bond.

Let's compare the given bond options:

(1) C-O: The electronegativity of carbon (C) is approximately 2.55, and the electronegativity of oxygen (O) is approximately 3.44. The electronegativity difference is 0.89.

(3) H-O: The electronegativity of hydrogen (H) is approximately 2.20, and the electronegativity of oxygen (O) is approximately 3.44. The electronegativity difference is 1.24.

(2) F-F: Fluorine (F) is the most electronegative element with an electronegativity of 3.98. Since both atoms in this case are fluorine, the electronegativity difference is 0.

(4) N-H: The electronegativity of nitrogen (N) is approximately 3.04, and the electronegativity of hydrogen (H) is approximately 2.20. The electronegativity difference is 0.84.

From the options provided, the bond between hydrogen (H) and oxygen (O) (option 3: H-O) has the highest electronegativity difference (1.24). Therefore, the H-O bond is the most polar among the given choices.

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Answer:

0.281 moles.

Explanation:

What is given?

Volume (V) = 2.50 L.

Temperature (T) = 325.0 K.

Pressure (P) = 3.00 atm.

R = 0.082 L*atm/mol*K.

Step-by-step solution:

This is an ideal gas law problem. The ideal gas law is a single equation which relates the pressure, volume, temperature, and the number of moles of an ideal gas. The formula of the ideal gas is given by the following:

where P is pressure, V is volume, n is the number of moles, R is the constant of ideal gas, and T is temperature.

We want to find the number of moles of air present in the cylinder, so we have to solve for 'n' and replace the given data, like this:

The answer is that we have 0.281 moles of the present air.

Answer:

the answer should be d I'm pretty sure.

Answer:

1.5x10¯⁴Kg

Explanation:

Data obtained from the question include the following:

Volume = 0.1642mL = 0.1642cm³

Density = 0.917g/cm³

Mass =.?

The Density of a substance is simply defined as the mass per unit volume of the substance. Mathematically, it is represented as:

Density = Mass /volume

With the above formula, we can calculate the mass of the ice as follow:

0.917 = Mass / 0.1642

Cross multiply

Mass = 0.917 x 0.1642

Mass = 0.151g

Finally, we shall convert 0.1506g to kg. This is illustrated below:

1000g = 1k

Therefore, 0.151g = 0.151/1000 = 1.5x10¯⁴Kg

The statement, that describe an isomer of a compound with an empirical formula of C₄H₁₀O₃ is "CHO."

The empirical formula of an organic compounds is the lowest whole number ratio of atoms contained in the substance, as defined in chemistry. The empirical formula gives the minimal ratio of the number of various atoms that existing. It's an empirical formula, if the formula is shortened, whereas not the exact number of atoms in the molecule, The given isomer of a compound is C₄H₁₀O₃. For this isomer, CHO is the empirical formula.

Hence, the correct answer is CHO.

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Entropy increase inIce Cubes Melting at -5 oC and 1 atm Pressure,The Reaction of Nitrogen Atoms to Form N2 Molecules at 25 oC and 1 atm,Formation of Liquid Water from Hydrogen and Oxygen Gases.

Entropy is a concept in thermodynamics that describes the amount of disorder or randomness in a system. It is typically a measure of randomness or uncertainty, and is represented by a number known as the entropy value. Entropy is related to the number of possible arrangements of energy in a system, and increases as the number of possible arrangements increases. For example, a completely ordered system has a low entropy, whereas a completely disordered system has a high entropy. Entropy also has an important role in the field of information theory, where it is used to measure the amount of information in a given system. In general, entropy measures the amount of disorder or randomness in a system, and is an important concept in thermodynamics, information theory, and other fields.

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The formula for the density, ρ, is (given a mass m and a volume V):

We know the volume in the graduated cylinder before and after the addition of the metal cylinder, so the difference is the volume of the metal cylinder:

And the mass is given:

So, the density is:

The density of the metal cylinder is approximately 0.354 g/mL.

Answer:

Formula: H2O Formula Weight: 18.02 CAS No.: 7732-18-5 Density: 1.000 g/mL at 3.98 °C(lit.)

Explanation:

The weather condition is NOT associated with warm fronts is: "warm fronts typically produce more violent weather than cold front" (Option A)

This is because, quite to the contrary, warm fronts are less likely to create violent weather than cold fronts. Warm fronts are connected with gradual ascension zones (i.e. stratiform clouds and precipitation).

Clouds and precipitation are common ahead of the warm front. Warm fronts travel far more slowly than cold fronts.

Weather fronts frequently indicate the type of weather that is on its way: Cold fronts, for example, provide heavier, denser air that pushes beneath the lighter warm front.

Winds grow gusty as the cold front passes. There is a sharp drop in temperature, as well as heavy rain, occasionally accompanied by hail, thunder, and lighting.

Cold fronts produce the most common type of cloud, cumulus clouds. They frequently develop into cumulonimbus clouds, which cause thunderstorms. Nimbostratus, stratocumulus, and stratus clouds can also be produced by cold fronts.

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Answer:

C

Explanation:

The reflection if sunlight on the water makes the water look silver,gray,white

Answer:

approximately 251.55 grams of AuCl3 would contain 5.0 x 10^23 molecules.

Answer:

Explanation:

40/ 180.2 x (-16 / 1 mole glucose)=-3.6 KJ

Answer:

A. Diffusion is the movement from areas of high concentration to areas of low concentration. Osmosis is a type of simple diffusion.

Explanation:

The statement that is true is:

A. Diffusion is the movement from areas of high concentration to areas of low concentration. Osmosis is a type of simple diffusion.

Explanation:

Diffusion is the movement of particles from an area of high concentration to an area of low concentration, driven by the concentration gradient. Osmosis is a special type of diffusion that involves the movement of water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration.

Option B is incorrect because diffusion can occur through any medium, while osmosis requires a semipermeable membrane.

Option C is incorrect because both diffusion and osmosis are passive processes that do not require the use of energy.

Option D is incorrect because osmosis involves the movement of water molecules, not gases, while diffusion can involve the movement of different types of particles, including gases, liquids, and solids.

Answer:2

Explanation: Acids do indeed conduct electricity (Love the one peice pfp btw)

Answer:

Sn is the oxidation agent and h2 is the reducing agent

Explanation:

Because oxidation agent means reduction which means the lose of oxygen and Sn lose oxygen.

While reduction agent means oxidation which also means the gain of oxygen and h2 gain oxygen.

I hope you understand my explanation if you need any help in chemistry I'm always here

To calculate the partial pressure of each gas in the tank, we can use the following formula:

Partial pressure = (moles of gas / total moles of gas) × total pressure

First, we need to calculate the total moles of gas present in the tank:

moles of CO = 4.84 g / 28.01 g/mol = 0.1728 mol

moles of N2O = 7.43 g / 44.01 g/mol = 0.1689 mol

Total moles of gas = 0.1728 mol + 0.1689 mol = 0.3417 mol

Next, we can use the ideal gas law to calculate the total pressure of the gases in the tank:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

Converting the temperature to Kelvin:

4.8°C = 277.95 K

Substituting the values:

P × 9.00 L = 0.3417 mol × 0.08206 L·atm/K·mol × 277.95 K

Solving for P:

P = (0.3417 mol × 0.08206 L·atm/K·mol × 277.95 K) / 9.00 L = 8.115 atm

Therefore, the total pressure of the gases in the tank is 8.115 atm.

Now we can calculate the partial pressure of each gas:

Partial pressure of CO = (0.1728 mol / 0.3417 mol) × 8.115 atm = 4.096 atm

Partial pressure of N2O = (0.1689 mol / 0.3417 mol) × 8.115 atm = 4.019 atm

Rounding each answer to 3 significant digits, we get:

Partial pressure of carbon monoxide = 4.10 atm

Partial pressure of dinitrogen monoxide = 4.02 atm

Therefore, the partial pressure of carbon monoxide in the tank is 4.10 atm and the partial pressure of dinitrogen monoxide in the tank is 4.02 atm.

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