What is the structural difference between saturated, monounsaturated, polyunsaturated, and trans fats?.

The masses of the solutions are; 0.34 g, 0.95 g and 2.9 g respectively.

We know that in the process of electrolysis, it is possible that we can be able to deposit a given mass of the metal when we pass a direct current through the solution.

We then have;

Quantity of current passed through each solution = 100 * 10^-3 A * 4 * 60 * 60 = 1440 C

Solution 1;

23 g of sodium is deposited by 96500 C

x is deposited by 1440 C

x = 0.34 g

Solution 2

63.5 g is deposited by 96500 C

x is deposited by 1440 C

x = 0.95 g

Solution 3;

197 g is deposited by 96500

x is deposited by 1440 C

x = 2.9 g

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Answer:

Sulfur hexafluoride

Explanation:

It is heavier than air that we breathe so it has an opposite effect.

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Answer: The answer is O and F

which is oxygen and flourine

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Answer:

C₂H6

Explanation:

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A

A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:

A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.

B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.

D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.

In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A

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Fusion powers the sun. This creates nuclear energy, which then goes to earth in the form of radiation. The plants get sunlight and photosynthesise (the process of getting glucose by sunlight). The answer should be C.

There are three laws that relates to the ideal gas law. These three laws are: Boyle's Law, Charles' Law, and Avogadro's Law.

The choices are a bit messy, try taking a picture and attaching the choices next time. But here are the three equations for the three laws:
Boyle's Law: P₁V₁=P₂V₂

Charles' Law: V₁/T₁ =V₂/T₂

Avogadro's Law: V₁/n₁=V₂/n₂

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The ideal gas law which is also known as the general gas equation represents the state of a hypothetical ideal gas. Among the given options, there is no equation to represent the ideal gas law. The given options are incorrect.

The combination of Boyle's law, Charles's law and Avogadro's law leads to an equation which gives the combined effect of change of temperature and pressure on the volume of a gas. This combined equation is called the ideal gas law.

Mathematically the ideal gas law is represented as:

PV = nRT

R = Universal gas constant

T = Temperature

P = Pressure

V = Volume

The ideal gas law states that the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas constant.

Thus the given options are incorrect.

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Answer:

Experiments are most useful when investigating predictions derived from explicit theories, and it is theories, rather than experimental results, that are properly used to explain features of natural settings.

Answer:

to explore new possibilities

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Answer:

Each student will need;

1 red jelly bean, 1 white jelly bean, 1 black jelly bean and 3 red jelly beans.

Explanation:

Sodium bicarbonate molecule, NaHCO3, or baking soda is composed of the following:

1 atom of sodium, Na;

1 atom of hydrogen, H;

1 atom of carbon, C, and

3 atoms of oxygen.

For each of the models to be built by the two students, these atoms are to be represented accordingly.

Since Red jelly beans represent sodium atoms (Na), white jelly beans represent hydrogen atoms (H), black jelly beans represent carbon atoms (C), and blue jelly beans represent oxygen atoms (O), each student will need;

1 red jelly bean, 1 white jelly bean, 1 black jelly bean and 3 red jelly beans.

A sample model is found in the attachment below:

Each student will need;

1 red jelly bean, 1 white jelly bean, 1 black jelly bean and 3 red jelly beans.

Sodium bicarbonate molecule, NaHCO3, or baking soda is comprise of the following:

1 atom of sodium, Na;

1 atom of hydrogen, H;

1 atom of carbon, C, and

3 atoms of oxygen.

Since Red jelly beans shows sodium atoms (Na), white jelly beans shows hydrogen atoms (H), black jelly beans shows carbon atoms (C), and blue jelly beans shows oxygen atoms (O).

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6.07 g of sulfur must react to produce 9.30 L of sulfur dioxide at 740 mm Hg and 125°C.

The given conditions of the reaction can be used to find the number of moles of sulfur dioxide using the ideal gas law, PV = nRT, where P = 740 mmHg, V = 9.30 L, T = 125 + 273 = 398 K, and R = 0.0821 L atm/mol K.

First, we need to convert pressure to atm. 1 atm = 760 mmHg, therefore, P = 740 mmHg/760 mmHg/atm = 0.974 atm

Using the ideal gas law, we have:

0.974 atm × 9.30 L = n × 0.0821 L atm/mol K × 398 K

n = 0.377 mol

The balanced equation for the reaction is:

S + 2O2 → 2SO2

For every 2 moles of SO2 produced, 1 mole of sulfur is required. Therefore, the moles of sulfur required to produce 0.377 mol of SO2 is 0.377/2 = 0.1885 mol.

The molar mass of sulfur is 32.07 g/mol, so the mass of sulfur required is:

0.1885 mol × 32.07 g/mol = 6.07 g

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The mass of 4. 50*\(10^{22\) formula units of \(CoSO_4\) is approximately 6. 835 x \(10^{26\)g.  

The mass of 4. 50*\(10^{22\) formula units of  \(CoSO_4\) can be calculated using the molar mass of  \(CoSO_4\), which is 154. 99 g/mol.

The formula units of a substance are the ratio of the number of atoms of each element in the compound to the atomic mass of the element. To convert the number of formula units of a substance to mass, we need to know the molar mass of the substance and the molarity of the solution.

The molar mass of a substance is the mass of one mole of that substance, and is typically reported in grams per mole (g/mol). To convert the number of formula units of a substance to mass, we can use the following formula:

Mass (g) = number of formula units x molar mass

For example, if we have 4. 50*\(10^{22\) formula units of  \(CoSO_4\) in a solution with a molarity of 1. 0 M, the mass of  in the solution can be calculated using the following formula:

Mass (g) = 4. 50*\(10^{22\) x 154. 99 g/mol = 6. 835 x \(10^{26\)g.  

Therefore, The mass of 4. 50*\(10^{22\) formula units of \(CoSO_4\) is approximately 6. 835 x \(10^{26\)g.  

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Answer:

Take the measuring cylinder and measure its mass, in grams, as accurately as possible. Take the measuring cylinder off the balance and add the water carefully. Put the measuring cylinder back on the balance. Measure and record the new mass . Repeat the procedure,  recording the volume and total mass, until the measuring cylinder is full. Then, for each volume calculate the mass of the liquid alone.Repeat steps 1 to 3  Draw a graph of mass of liquid against volume .  Calculate the density of each liquid from the gradient of its graph line.

Explanation:

The ratio of hydrogen atoms to oxygen atoms in water is 2:1.

The ratio of hydrogen atoms to oxygen atoms can be determined by looking at the chemical formula of the compound in question. In the case of water (H2O), the chemical formula tells us that there are two hydrogen atoms and one oxygen atom.

Therefore, the ratio of hydrogen atoms to oxygen atoms in water is 2:1. This means that for every one oxygen atom, there are two hydrogen atoms.

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The ratio of hydrogen atoms to oxygen atoms in a water molecule (H₂O) is 2:1. This fixed ratio is crucial for water's unique properties as a solvent and its participation in chemical reactions.

Each water molecule consists of two hydrogen atoms bonded to one oxygen atom, forming a stable structure.

This ratio determines water's molecular composition and influences its behavior, including its ability to form hydrogen bonds, high boiling point, and solvent properties.

Understanding the 2:1 ratio is essential for comprehending water's role in biological systems, where it serves as a vital component for hydration, biochemical reactions, and overall physiological processes.

Water's 2:1 hydrogen-to-oxygen atom ratio underlies its fundamental nature and significance in various natural phenomena.

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It is better to observe the law of conservation of mass in a closed system as it is more accurate.

This is referred to as the law which states that mass can neither be created nor destroyed but can be transformed from one form to another.

In a closed system, matter cannot enter or leave the system which means that when water evaporates inside a sealed container, the container and the water vapor have the same mass after evaporation has occurred which depicts this law and is therefore the reason why a closed system was chosen as the correct choice.

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The number of protons is equal to the number of electrons.

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Answer:

Cl2

Explanation:

Bcs in product there is chorine

Answer:

it depends on mass and speed

Answer:

6.14x10^24

Explanation:

convert the given 47.0g to mols then to molecules.

\(\frac{47.0g}{} x\frac{1mol}{46.07g}x\frac{6.022x10^{23} }{1 mol}\)

46.07 is the molar mass of ethanol

6.022x10^23 is avogadros number

Answer:

(9,5) and (2,1)

Explanation:

Answer:

6.707 × 10¹⁷

Explanation:

From the information given:

40 ^ K kütlesi = sütteki K kütlesi × 40 ^ K / 100 kütle yüzdesi

nerede;

sütteki K kütlesi = 1.65 mg of K/mL × 225 mL = 371.25  mg of K

∴

40 ^ K kütlesi = 371.25  × 0.012/100

40 ^ K kütlesi = 0,04455 mg = 4.455 × 10⁻⁵ grams

40 ^ K mol sayısı = 40 ^ K kütlesi / molar kütle

= 4.455 × 10⁻⁵/40

= 1.11375 × 10⁻⁶

Son olarak, 40 ^ K = mol × Avogadro sayısı atomları

= 1.11375 × 10⁻⁶  × 6.022 × 10^23

= 6.707 × 10¹⁷

Answer:

In a chemical reaction, only atoms are present in the reactant and can end up with molecules. No new atoms are created and no more atoms are destroyed. In a chemical reaction, reactants contact with each other and the bond between atoms in the reactant is broken and atoms rearrange and form new bonds to make the product.

Explanation:

Answer:

26.90 grams of sulfuric acid

Explanation:

2HCl + Na2SO4 → 2NaCl + H2SO4

HCl = 36.46 g/mol

H2SO4 = 98.08 g/mol

Calculating 20 grams in HCI

n(HCl) = mass/molar mass

= 20.0 g/36.46 g/mol

= 0.5487 mol

2 moles of HCl produces 1 mole of H2SO4

n(H2SO4) = 0.5487 mol/2

= 0.2744 mol

Mass of H2SO4

mass(H2SO4) = n(H2SO4) x molar mass

= 0.2744 mol x 98.08 g/mol

= 26.90 g

Answer:

26.9 grams

Explanation:

This is a stoichiometry problem. To solve it, we need to determine the number of moles of hydrochloric acid (HCl) that are present in 20.0 grams of the substance. The molar mass of HCl is 36.46 g/mol, so 20.0 grams of HCl is equivalent to 20.0 g / 36.46 g/mol = 0.549 moles of HCl.

According to the balanced chemical equation you provided, two moles of HCl react with one mole of sodium sulfate (Na2SO4) to produce two moles of sodium chloride (NaCl) and one mole of sulfuric acid (H2SO4). This means that for every two moles of HCl that react, one mole of H2SO4 is produced.

Since we have 0.549 moles of HCl, we can expect to produce 0.549 moles / 2 = 0.275 moles of H2SO4.

The molar mass of H2SO4 is 98.08 g/mol, so 0.275 moles of H2SO4 is equivalent to 0.275 mol * 98.08 g/mol = 26.9 grams of sulfuric acid.

The standard enthalpy change for reaction (3) is 117.1 kJ.

The standard enthalpy change for reaction (3) can be calculated by using the enthalpy changes of reactions (1) and (2) and applying Hess's Law.

To do this, we need to manipulate the given equations so that the desired reaction (3) can be obtained.

First, we reverse reaction (1) to get the formation of C2H4(g) from C2H6(g):

C2H4(g)C2H6(g) ΔH° = -52.3 kJ

Next, we multiply reaction (2) by 2 and reverse it to obtain 2 moles of C2H6(g) reacting to form 3 moles of H2(g):

2C2H6(g)2C(s) + 3H2(g) ΔH° = 169.4 kJ

Now, we add the two modified equations together:

C2H4(g)C2H6(g) ΔH° = -52.3 kJ
2C2H6(g)2C(s) + 3H2(g) ΔH° = 169.4 kJ

When adding these equations, the C2H6(g) on the left side cancels out with the C2H6(g) on the right side, leaving us with the desired reaction (3):

C2H4(g) + H2(g)C2H6(g) ΔH° = -52.3 kJ + 169.4 kJ = 117.1 kJ

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Three types

The three types of heat transfer

Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation). Heat is usually transferred in a combination of these three types and seldomly occurs on its own. Hope I helped!! <3

____________________________________________________________

3種類

3種類の熱伝達

熱は、固体材料（伝導）、液体と気体（対流）、および電磁波（放射）を介して伝達されます。熱は通常、これら3つのタイプの組み合わせで伝達され、それ自体で発生することはめったにありません。私が助けてくれたらいいのに！< 3

The mass of Xe present in the syringe given the data is 0.183 g

Using the ideal gas equation, we can obtain the mole of Xe as follow:

n = PV / RT

n = (0.98 × 0.035) / (0.0821 × 298)

n = 0.0014 mole

Mass = mole × molar mass

Mass of Xe = 0.0014 × 131

Mass of Xe = 0.183 g

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Acid has a pH below 7 while water has a pH of 7. A strong acid with a pH of roughly 3, HCl is. Water gets more acidic and loses pH in the range of 4-5 when HCl is added to it.

A substance's pH is a gauge of how basic or acidic it is. It is a measurement of the amount of H+ present in the solution. It is equivalent to the negative logarithm of the concentration of H+ ions mathematically.

A solution is acidic if its pH value is less than 7, and basic if it is greater than 7. Acids have a lower pH because they contain more H+ ions. Strong acid hydrochloric acid has a pH between 2 and 3.

Water has no charge. Water becomes acidic in pH if any acid is introduced. Therefore, if HCl is given to water, the pH of the water will change to 3-5 depending on the acid content.

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Ionic bonds are a type of bond formed with the attraction between oppositely charged ions to form a chemical compound, this type of bond will have a transfer of electrons, from the positively charged ion (cation) to the negatively charged ion (anion). Since this type of bonding heavily depend on the electronegativity of the elements, we will have compounds formed with metals, located more to the left in the periodic table, mostly group 1 and 2, and with nonmetals, more to the right in the periodic table, one example of this type of bond is Chlorine (nonmetal anion) and Lithium (metal cation).

Covalent bonds are a type of bond formed with the sharing of electrons between two elements with no big difference in their electronegativity, usually, we will see nonmetals in this type of bond, since their difference in electronegativity is not as relevant as the difference between metals and nonmetals, one example of this type of chemical bond is Nitrogen and Oxygen, 2 nonmetals that can bond together.

Metallic bond, as the name suggest, is a type of bond that will strictly involve metals and not nonmetals, this type of bond has many properties but the low electronegativity in general is one of these properties, one example for this bond is Gold and Gold

Therefore the answers are:

Gold and Gold = metallic

Nitrogen and Oxygen = covalent

Chlorine and Lithium = ionic