what is oxidized and what is reduced
C2H4 + 2O2 → 2CO + 2H2O
C2H4 + 3O2 → 2CO2 + 2H2O

Explanation:

no sé de qué me estás hablando

This is a precipitation reaction and 1.38 g of the precipitate will be formed is the statement is correct. Hence, option C is correct.

A precipitation reaction is when two or more dissolved chemicals combine to form one solid products. The exchange of ions between ionic compounds in aqueous solutions is a common component of these reactions, which are also occasionally referred to as double displacement, double replacement, or metathesis reactions.

in response to precipitation a process that converts soluble salts into solids that are insoluble in water. a neutralizing response an interaction between an acid and a base that results in the production of salt, water, and an ionic molecule.

Precipitate refers to a solid that forms from a solution. The blending of two transparent solutions is a common example: NaCl in combination with silver nitrate The answer is. The soli cannot be dissolved in water.

Thus, option C is correct.

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Answer:

0.01

Explanation:

100 -80=20

200/20=10/1000=0.01kj

When fossil fuels burn, several forms of energy are produced, including:

Heat energy: The primary form of energy released during fossil fuel combustion is heat. Fossil fuels contain chemical energy stored for millions of years, and when they burn, this energy is released in the form of heat. The heat energy can be harnessed for various purposes, such as heating buildings or generating steam to drive turbines.

Light energy: Burning fossil fuels can also produce light energy in the form of flames or glowing embers. This light energy is a byproduct of combustion.

Mechanical energy: Heat generated by burning fossil fuels can be converted into mechanical energy. This is typically achieved by using heat to produce steam, which drives a turbine connected to a generator. The rotating turbine converts the heat energy into mechanical energy, which is further transformed into electrical energy.

Electrical energy: Through the process described above, burning fossil fuels can ultimately generate electrical energy. The mechanical energy produced by the turbine is converted into electrical energy by the generator. Electrical energy can power various devices, appliances, industries, and infrastructure.

It's critical to note that while burning fossil fuels can produce useful forms of energy, it also results in the release of carbon dioxide and other greenhouse gases. This contributes to climate change and environmental concerns. As a result, there is a global shift towards cleaner and renewable energy sources to mitigate these negative impacts.

Answer:

0.60 mol

Explanation:

There is some info missing. I think this is the original question.

Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing carbon dioxide gas and water vapor. Calculate the moles of oxygen needed to produce 1.5 mol of water.

Step 1: Given data

Moles of water required: 1.5 mol

Step 2: Write the balanced equation

C₂H₂(g) + 2.5 O₂(g) ⇒ 2 CO₂(g) + H₂O(g)

Step 3: Calculate the moles of oxygen needed to produce 1.5 mol of water

The molar ratio of O₂ to H₂O is 2.5:1. The moles of oxygen needed to produce 1.5 mol of water are (1/2.5) × 1.5 mol = 0.60 mol

Answer:

the answer is d.Class there u go i hope its riht

Answer:B and C

Explanation:did the assignment

The volume of carbon dioxide produced is approximately (d) 11.9 liters.

To determine the amount of carbon dioxide (C\(O_2\)) produced when 37.8 grams of carbon disulfide (C\(S_2\)) reacts with excess oxygen gas (\(O_2\)), we need to use stoichiometry and the given balanced chemical equation:

C\(S_2\)(l) + 3\(O_2\)(g) → C\(O_2\)(g) + 2S\(O_2\)(g)

First, we calculate the number of moles of C\(S_2\) using its molar mass:

Molar mass of (C\(S_2\)) = 12.01 g/mol (C) + 32.07 g/mol (S) × 2 = 76.14 g/mol

Number of moles of (C\(S_2\)) = mass / molar mass = 37.8 g / 76.14 g/mol ≈ 0.496 mol

From the balanced equation, we can see that the stoichiometric ratio between (C\(S_2\)) and C\(O_2\) is 1:1. Therefore, the number of moles of C\(O_2\) produced will also be 0.496 mol.

Now we can use the ideal gas law to calculate the volume of C\(O_2\) at the given temperature and pressure. The ideal gas law equation is:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant (0.0821 L·atm/mol·K), and T is the temperature in Kelvin.

Converting the temperature from Celsius to Kelvin:

T(K) = 28.85°C + 273.15 = 302 K

Using the ideal gas law:

V = nRT / P = (0.496 mol) × (0.0821 L·atm/mol·K) × (302 K) / (1.02 atm) ≈ 11.9 L

The correct answer is 11.9 liters.

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Answer:

0.06457g of H₂

Explanation:

2Al(s) + 6H₂O(l) + 2KOH(aq) → 2K[Al(OH)₄](aq) + 3H₂(g)

Based on the equation 2 moles of Al produce 3 moles of hydrogen.

First, we need to convert mass of Al to moles and then with the chemical equation find moles and mass of hydrogen:

Moles Al (Molar mass: 26.982g/mol):

1.15g Al * (1mol / 26.982g) = 0.04262 moles Al

Moles H₂:

0.04262 moles Al * (3 moles H₂ / 2 mol Al) = 0.06393 moles H₂

Mass hydrogen (Molar mass: 1.01g/mol):

0.06393 moles H₂ * (1.01g/mol) =

Answer:

The maximum amount of NaCl that could potentially be formed is 34.97 grams.

The limiting reactant is Cl2, and the excess reactant is Na.

All the Cl2 was used up in the reaction, and there is no Cl2 leftover.

All the Na was consumed in the reaction, and there is no Na leftover.

1.2 × 10²⁴ atoms C

Chemistry

Atomic Structure

Stoichiometry

Math

Pre-Algebra

Order of Operations: BPEMDAS

Step 1: Define

Identify variables

[Given] 24 g C

[Solve] atoms C

Step 2: Identify Conversions

Avogadro's Number

[PT] Molar Mass of C: 12.01 g/mol

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

1.2034 × 10²⁴ atoms C ≈ 1.2 × 10²⁴ atoms C

Answer:

See explanation

Explanation:

The molecular geometry of an atom is connected to the number of electron pairs that surround it(whether lone pairs or bonding pairs) as well as its hybridization state. We shall now examine the N, P, or S atoms in each of the following compounds.

a)

In H3PO4, P has a tetrahedral molecular geometry and is sp3 hybridized.

b) In NH4NO3

N is sp3 hybridized in NH4^+ and sp2 hybridized in NO3^-. Also, N is tetrahedral in NH4^+ but trigonal planar in NO3^-.

c) In S2Cl2, we expect a tetrahedral geometry but as a result of the presence of two lone pairs on each sulphur atom, the molecular geometry is bent. The sulphur is sp3 hybridized.

d) In K4[O3POPO3], each phosphorus atom is in a tetrahedral molecular geometry and is sp3 hybridized.

Based on the given reactions, the compounds are as follows:

A: The specific product formed from the reaction between prop-1-yne and either 2HBr or H2O2.

B: The product formed when compound A reacts with 2H2O.

C: The product formed when compound B reacts with K2CO3(aq).

D: The product formed from the heat-induced reaction of compound C.

E: The product formed when compound D reacts with HBr.

Based on the given reactions, let's analyze the compounds involved:

Reaction 1: prop-1-yne + 2HBr/H2O2 = A

The reactant prop-1-yne reacts with either 2HBr or H2O2 to form compound A. The specific product formed will depend on the reaction conditions.

Reaction 2: A + 2H2O = B

Compound A reacts with 2H2O (water) to form compound B.

Reaction 3: B + K2CO3(aq) = C

Compound B reacts with K2CO3(aq) (potassium carbonate dissolved in water) to form compound C.

Reaction 4: C + heat = D

Compound C undergoes a heat-induced reaction to form compound D.

Reaction 5: D + HBr = E

Compound D reacts with HBr (hydrobromic acid) to form compound E.

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Answer:

1. Dehydration of alcohols

2. Dehydrohalogenation of alkyl halides

3. Decarboxylation of carboxylic acids

4. Pyrolysis of esters

5. Deamination of amino acids

6. Dealkylation of ethers

7. Dehalogenation of aryl halides

8. Dehydration of amides

9. Dehydrogenation of alkanes

10. Dehydrogenation of alkenes.

Explanation:

Answer: Formula is C4H8O. In every branch of line formula there are Carbon atom. Carbon makes 4 bonds so In branch left in which two CH3-groups are attached there are also an Hydrogen aton which is not shown.

Explanation: Molecule is organic, it is classified as aldehyde.

Hydrocarbons contains only Carbon and Hydrogen atoms, Organic molecules can contain also other atoms.

Reactions of aldehydes are reduction to alcoholes or oxidation to carboxylic acids. It can not for a polymer.

The intermolecular forces or the strength of C is more than that of B.

What are intermolecular forces?

Here, we can see that C has dipole-dipole interaction while B has none.

Therefore, it states that the intermolecular forces present in C are much more than that in B.

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Answer:

They are related by the the density triangle.

Explanation:

They are related by the the density triangle.

Answer:

192

Explanation:

24-8=16

16x60=960

960/5=192

Answer:

Answer Expert Verified

The lights shown in the figure comes from the outermost layer of the Sun. This layer is called photosphere. This is the layer from where the light of the Sun is radiated, before travelling through space and reaching us.

Answer:

That guy is wrong, I believe it is c

Explanation:

Answer:

15%

Explanation:

From the question given above, the following data were obtained:

Mass of sugar = 15 g

Mass of water = 85 g

Percentage of sugar in the solution =?

Next, we shall determine the mass of the solution. This can be obtained as follow:

Mass of solute (sugar) = 15 g

Mass of solvent (water) = 85 g

Mass of solution =?

Mass of solution = mass of solute + mass of solvent

Mass of solution = 15 + 85

Mass of solution = 100 g

Finally, we shall determine the percentage of the sugar in the solution. This can be obtained as follow:

Mass of solute (sugar) = 15 g

Mass of solution = 100 g

Percentage of sugar in the solution =?

Percentage = solute /solution × 100

Percentage = 15 / 100 × 100

Percentage of sugar in the solution = 15%

It is not possible  that  a molecule that has absorbed infrared radiation subsequently emit a photon with a wavelength in the UV region as a result.

Both infrared rays and ultraviolet rays belong to the electromagnetic spectrum. However, the infrared rays are lower in energy than the ultraviolet rays. Hence, infrared rays have a longer wavelength than ultraviolet rays.

This implies that it is not possible that  a molecule that has absorbed infrared radiation subsequently emit a photon with a wavelength in the UV region as a result.

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Answer: C3H2O

Explanation: To find the empirical formula of the compound, we need to determine the simplest whole number ratio of atoms in the compound.

Assuming we have 100 g of the compound, we can convert the percentages to masses of each element:

Carbon: 66.7 g

Hydrogen: 3.74 g

Oxygen: 29.6 g

Next, we need to convert these masses to moles using the atomic masses:

Carbon: 66.7 g / 12.01 g/mol = 5.55 mol

Hydrogen: 3.74 g / 1.01 g/mol = 3.70 mol

Oxygen: 29.6 g / 16.00 g/mol = 1.85 mol

Now we need to divide each of these mole values by the smallest of the three:

Carbon: 5.55 mol / 1.85 mol = 3.00

Hydrogen: 3.70 mol / 1.85 mol = 2.00

Oxygen: 1.85 mol / 1.85 mol = 1.00

These ratios give us the empirical formula:

C3H2O

However, we can simplify this formula by dividing each subscript by 2:

C1.5H1O0.5

Finally, we can multiply through by 2 to get rid of the decimals:

C3H2O

i) Instantaneous dipole - induced dipole

The induced dipole is constituted by the non-gravitational attraction that occurs in all molecules and is the only type of attraction between nonpolar molecules. The electrons are evenly distributed and there is no formation of an electric dipole. However, when nonpolar molecules approach each other, they induce the formation of temporary dipoles. In solid and liquid physical states, the molecules are so close that an instantaneous deformation of the electronic clouds is formed and positive and negative poles are created.

ii) Permanent dipole - permanent dipole

The dipole-dipole occurs between the molecules of polar compounds and is considered an intermediate force interaction. The electrons are distributed asymmetrically and so the more electronegative element attracts the electrons towards itself. In dipole-dipole bonds, polar molecules interact in such a way that opposite poles are preserved.

iii) Hydrogen bonds

The bond or hydrogen bond occurs in polar molecules that have hydrogen joined to electronegative elements and with low atomic volume, such as oxygen (O), fluorine (F) and nitrogen (N). It is the strongest intermolecular force, as there is a large difference in electronegativity between the elements. An example of hydrogen bonding occurs in the water molecule (H2O) in both solid and liquid states.

The vocabulary word from collision theory to what was happening at the pet adoption.

Reactants - The foster family with the pet and the adoptive family entering the park alone

Products - The adoptive family with their new pet and the foster family  petless

Collision theory says that for a chemical reaction to happen, the reactant molecules must come in contact with each other with enough energy and with all things being equal or in sync. The rate of the reaction is proportional to the number of collisions that occur.

The other answers are:

Temperature - More adoptions happen in the summer than in the winter.

Surface Area - The foster families started in a solid block, but decided to spread out in the park.

Concentration - Once the foster families spread out, they were able to invite more foster families to the event

Catalyst - The foster families and adoptive families would sit together at a picnic table to meet the pet and fill out paperwork.

Activated Complex - Meeting between foster families and adoptive families to meet the pet and fill out paperwork

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Steroids, waxes, and triacylglycerols consist of fatty acids, therefore they are considered as lipids.

Lipid molecules contain repeating units known as fatty acids. There are two kinds of fatty acids one is saturated fatty acids and other unsaturated fatty acids. Both kinds consist mainly of simple chains of carbon atoms bonded to other carbon and hydrogen atoms.

Triglycerides are produced by combining three fatty acid molecules and a molecule of glycerol. Glycerol (glycerine) is a simple compound called sugar alcohol. It is an odorless, colorless, liquid which is sweet tasting and nontoxic.

Steroids are also lipids with a ring structure and have a core of seventeen carbon atoms organized in four rings of five or six carbons each.

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The awnser is D. polarity

A microscopic property that helps determine whether or not two substances will dissolve with each other is: D. polarity.

Solubility can be defined as a measure of how readily a substance dissolves in a solvent to form a solution. Therefore, a substance is generally considered to be soluble if it is able it dissolve completely in a solvent and it is said to be insoluble if it does not dissolve in a solvent or only dissolves partially.

On a related note, polarity refers to a microscopic property that is typically used to determine whether or not two (2) substances will dissolve with each other.

Basically, the polarity of a substance connotes the distribution of electrical charge (electrons) around its atom by virtue of a chemical bond. Thus, the polarity of a substance is grouped into two (2) main categories and these are:

In conclusion, this microscopic property referred to as polarity helps to determine whether or not two substances will dissolve with each other.

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Answer:

Condensation

Explanation:

Zoe is quite keen to have noticed what we call condensation. Air contains many components, one of those being water vapor. Like how sugar is soluble in water, water can be said to be "soluble" in air. Water will evaporate into the air to a certain extent. The higher the temperature of the air, the more water the air can hold. If the air has more water that it can hold (potentially because of a temperature decrease), the extra water will come out of the air. Zoe's water bottle was cold, and because the air around Zoe's bottle had cooled down, the air can not hold as much water as it could when it was warm, so the air deposited the extra water in the form of liquid water onto the bottle, giving the illusion that her bottle was sweating.

Answer:

\(Y=12.2 \frac{gpm}{ft}\)

Explanation:

Hello!

In this case, since we can find that the well produces 280 gpm, and the given drawdown is 23 ft, we need to divide 280 by 23 to obtain the yield in gmp/ft as shown below:

\(Y=\frac{280gpm}{23ft} \\\\Y=12.2 \frac{gpm}{ft}\)

Best regards!

Answer:

Ca2+

Explanation:

don't really know what to explain here, thats just the ion name.

Answer: The pH will decrease by 0.109 units.

Explanation:

To solve this problem, we will need to use the Henderson-Hasselbalch equation:

pH = pKa + log([A-]/[HA])

where pH is the initial pH of the buffer, pKa is the acid dissociation constant of acetic acid, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the acid.

First, we need to find the initial concentrations of [A-] and [HA] in the buffer. Since the total molarity of acid and conjugate base is 0.100 M and we know the volume of the buffer, we can use the following equation:

moles of acid = moles of conjugate base

0.100 M x 2.00x10^-2 L = [HA] x 2.00x10^-2 L

[HA] = 0.100 M

Since we know the pH of the buffer, we can use the following equation to find the concentration of the conjugate base:

pH = pKa + log([A-]/[HA])

5.000 = 4.740 + log([A-]/0.100)

[A-]/[HA] = 10^(5.000-4.740)

[A-]/[HA] = 1.995

[A-] = 1.995 x 0.100 M = 0.1995 M

Now, we need to find the new concentrations of [A-] and [HA] after the addition of HCl. Since the volume of the buffer is now 2.069x10^-2 L (2.00x10^-2 L + 6.90x10^-3 L), we can use the following equation:

moles of acid + moles of HCl = moles of conjugate base

0.100 M x 2.00x10^-2 L + 0.300 M x 6.90x10^-3 L = [HA] x 2.069x10^-2 L

[HA] = 0.1295 M

The concentration of the conjugate base can be found using the equation:

[A-]/[HA] = 10^(pH-pKa)

1.891 = 10^(pH-4.740)

pH-4.740 = log(1.891)

pH = log(1.891) + 4.740

pH = 5.000 - 0.109

Therefore, the pH will decrease by 0.109 units.