Oxides of active metals react with water to produce____

nitrogen and chloro fluro carbon gas is not an example of a naturally occurring greenhouse gas

Water vapour, carbon dioxide, methane, nitrous oxide, and ozone are examples of naturally occurring greenhouse gases. Hydro-fluorocarbons (HFCs), perfluorocarbons (PFCs), and sulphur hexafluoride (SF6) are examples of artificial greenhouse gases that are produced via a number of industrial operations. Carbon dioxide, methane, ozone, nitrous oxide, chlorofluorocarbons, and water vapour are some examples of greenhouse gases. The gas that is not a greenhouse gas is therefore nitrogen. The different greenhouse gases include nitrous oxide, water vapour, ozone, chlorofluorocarbons, methane, and chlorofluorocarbons. Infrared light cannot pass through oxygen or nitrogen, hence they are not considered greenhouse gases. These molecules are invisible because stretching one of them has no effect on the electric field. These symmetric molecules are composed of two identical atoms whose electric fields simply cancel one another out.

which gas is not an example of a naturally occurring greenhouse gas?

1. nitrogen

2.cholrofluoro carbons

3. oxygen

4. carbondioxide

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Interactions between ions and dipoles. Ion-Dipole Forces were engaged for solutions in which an ionic chemical is immersed in a polar solvent, for example a table salt (NaCl) water solution.

Ion-dipole intermolecular forces seem to be electrostatic reactions between such a polar molecule as well as an ion that are frequently caused by the dissolution of ionic compounds within polar substances. The attraction here between the negative ends of one polar molecule as well as the positive ends of another polar molecule is known as dipole-dipole forces.

In polar solvents, polar molecules were also soluble (Predominant intermolecular force will be a dipole-dipole attraction between polar solute molecule as well as polar solvent molecule).

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Molality of sulfuric acid is 1.1.

As we know that density of solution = 1.509 = mass of solution \ Volume.

10% of [tex]H{_2}SO_4[/tex] by mass,

[tex]\frac{10}{100} \times 1.509[/tex] v (g)

As the mass of solvent [tex]=\frac{90}{100}\times 1.509 V(g)[/tex]

98 g of [tex]H{_2}SO_4[/tex] contains moles = 1,

[tex]\frac{10 \times 1.509 V g}{100}[/tex] of [tex]H{_2}SO_4[/tex] contains moles = [tex]\frac{1.509 .v}{10 \times 98}[/tex] moles

Molality = moles of solute/ Mass of solvent (kg)

             =[tex]\frac{1.509 \times 100 \times 1000}{10 \times 98 \times 1.509 .V (kg)}[/tex]

             = 1.1

Hence, the Molality of sulphuric acid is 1.1.

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The number of moles of hydrogen produced if reacted with 0.605 moles of sodium in the reaction is 0.3025 moles.

Stoichiometry is the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, sodium reacts with water to produce sodium hydroxide and hydrogen gas as follows:

2Na + 2H₂O → 2NaOH + H₂

Based on the reaction above, 1 moles of hydrogen is produced by the reaction of 2 moles of sodium.

Hence, 0.605 moles of sodium will react to produce 0.3025 moles of hydrogen.

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Answer:

B: Inverse

Explanation:

The reaction between magnesium metal and copper chloride produce magnesium chloride precipitate and copper. The net ionic equation of the reaction is given below:

[tex]\rm Mg(s) + 2Cl (aq) \rightarrow MgCl_{2} (s)[/tex]

The ionic equation of a reaction shows all the ions participate in the reaction and their states specified in brackets. The net ionic equation represents the balanced charges in both side of ionic equation.

The balanced equation of the  given reaction is written as follows:

[tex]\rm Mg(s) + CuCl_{2} (aq) \rightarrow MgCl_{2} (s) + Cu(aq)[/tex]

Here, the copper ions are in aqueous state in both side of the reaction and they get cancelled in the net ionic equation.

Therefore, the net ionic equation represents the formation of the solid precipitate MgCl₂ as written in the reaction above.

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It is crucial to remember that the finished output will be a model rather than an exact reproduction of the rock. The final sculpture will be an artistic depiction of the rock utilising the colours of clay you have on hand.

You would need to follow these procedures to create a replica of the vibrant rock seen in Crete using modelling clay: The modelling clay should be divided into four equal pieces, each of which should be coloured differently. Each colourful piece of clay should be rolled and flattened into a thin sheet using your hands. As desired, mix the colours together. To mould and shape the layered clay into the desired rock shape, use little pressure. On the rock's surface, use a tool to add textures and features. Physical force, such as pressing and sculpting the clay with your hands and tools, and cohesive forces between the clay particles are the major forces employed in this procedure.

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Answer: C₂H₄ + 3O₂ --> 2 CO₂ + H₂O is the balanced equation

Explanation:

First, the Carbon atoms are balanced. After balancing the equation becomes:

C₂H₄ + O₂ --> 2 CO₂ + H₂O

Then the Hydrogen atoms are balanced. After balancing the equation becomes:

C₂H₄ + O₂ --> 2 CO₂ + 2H₂O

Finally, Oxygen atoms are balanced. After balancing the equation becomes:

C₂H₄ + 3O₂ --> 2 CO₂ + H₂O

Thus, the balanced equation is C₂H₄ + 3O₂ --> 2 CO₂ + H₂O

I hope this helps! :)

The molality of  solution is 0.26 mol/kg

Molality is defined as "The ratio of the number of moles of solute present in a solution to the mass of the solvent in kilograms".

The unit that is used to represent molality is mol/kg.

The formula used to calculate molality is given below:

Molality = moles of solute/ mass of solvent in kg-----> (i)

Here,

Given values:

Moles of NaC₂H₃O₂ (solute) = 0.195mol

Mass of solvent (water) = 0.750 kg

Putting these values in equation (i), we get-

Molality

= 0.195 mol/0.750 kg

=0.26 mol/kg

Hence, the molality of  solution is 0. 26 mol/kg

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Every rock has its place in the rock cycle. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

The rock cycle is described as a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous.

There are many possible paths a rock can take to become different types of rock, and that is because there is no needed path for a rock to change in form.

WE can explain more using the example that a metamorphic rock can become sedimentary rock by erosion and deposition, but the original metamorphic rock was not ever igneous rock.

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At stp one mole of oxygen gas and one mole of neon atom both have

6* [tex]10^2^3[/tex] molcules which is avagardo number of molecules.

STP stands for "Standard Temperature and Pressure." In chemistry, it is commonly used as a reference point to describe the properties of gases. STP is defined as a temperature of 0 degrees Celsius (273.15 K) and a pressure of 1 atmosphere (101.325 kPa). At these conditions, the volume of one mole of any gas is 24.45 L.

So one mole of all gas have avagadro number of molecules in it.

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Specific heat capacity of the metal  by the given values is 5.389 J/ g°C  

Mass of water = 140.0 g

Initial temperature of water = 20.0°C

Mass of a certain metal = 100.0 g

Initial temperature of metal = 100.0°C

Final temperature of water and metal = 95.0°C

Since the metal is at a higher initial temperature it will lose heat and the water having a lower initial temperature will gain heat.  

Thus, heat lost by metal = Heat gained by water  

formula: (mass metal )(initialT - finalT)( Cp metal ) = ( mass water )(finalT- initalT)( Cp water)  

After plugging in the given data we get,  

(100.0 g )(100.0 °C -95.0°C)( Cp metal) = (140.0g )(24.6°C-20.0°C) (4.184 J/g°C)  

(100.0g )(5.0C)( Cp metal )=(140.0g )(4.6°C)(4.184 J/g°C)  

(500 g°C) (Cp metal) = 2694.5 J  

(Cp metal) =5.389 J/ g°C  

Thus, specific heat capacity(Cp) of metal = 5.389 J/ g°C

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Peptide bonds, glycosidic bonds, phosphodiester  bonds are covalent bonds.

A covalent bond is formed by the equal sharing of electrons by two atoms.

The bond which is  formed between the first carbon atom of one monosaccharide with the four carbon atoms present in the neighboring monosaccharide unit and, which results in the formation of a polysaccharide unit is known as a Glycosidic bond.  In the formation of this bond, a water molecule is released as a by-product.

A covalent bond which is formed between the carboxyl group of one amino acid and the amino group of the neighboring amino acids, is known as a peptide bond. This bond formation involves release of a water molecule as a by-product.

The phosphate-hydroxyl linkage present between two nucleotides where the phosphate group is attached to the hydroxyl group(OH) at the 5'-carbon of pentose sugar is bonded to the hydroxyl group of the 3'-carbon of the pentose sugar present in the next neighboring nucleotide. This bond  is known as a phosphodiester bond.

Thus, option (d) is correct

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The conversion factor that best represents the information provided in the smartfood package is grams of carbohydrates per gram of serving.

The package states that one 17.7 gram serving contains 51% carbohydrates, which can be converted to grams by multiplying the percentage by the total weight of the serving. So, 51% of 17.7 grams is approximately 9.09 grams of carbohydrates per serving. To express this as a conversion factor, it would be written as 9.09 grams of carbohydrates per gram of serving. This conversion factor can be used to convert the number of grams of carbohydrates in other serving sizes of the same food.

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The mass of precipitate will from when 25 ml of 1.5 M copper(II)
sulfate solution reacts with the 35 ml 0.75 M potassium hydroxide is 2.53 g.

The balanced chemical equation is :

CuSO₄(aq)   +  2KOH(aq)   ----->   K₂SO₄(aq)   +  Cu(OH)₂(s)

The moles of CuSO₄ = 1.5 × 0.025

                                    = 0.037 mol

The moles of KOH = 0.75 × 0.035

                               = 0.026 mol

The KOH is the limiting reactant.

1 mole of the KOH produces the 1 mole of Cu(OH)₂

Moles of Cu(OH)₂ = 0.026 mol

The mass of Cu(OH)₂ = moles × molar mass

                                    = 0.026 × 97.5

                                    = 2.53 g

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If 3.20 liters of ammonia gas reacts, the amount of oxygen gas that will be consumed is 4L of oxygen gas (option B).

Stoichiometry refers to the quantitative relationship between the reactants and products of a specific reaction or equation.

According to this question, ammonia gas reacts with oxygen gas to produce nitrogen oxide and water as follows:

4NH₃ + 5O₂ → 4NO + 6H₂O

Based on the above equation, 4 moles of ammonia gas reacts with 5 moles of oxygen gas.

This means that 3.2 litres of ammonia gas will react with 3.2 × 5/4 = 4 litres of oxygen gas.

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A separation process that depends on differing abilities of substances to form gases is called Distillation.

Distillation is a common method used to separate and purify liquids based on their different boiling points. The process involves heating a mixture of liquids to a temperature where one liquid will evaporate and form a vapor, while the other liquids will remain in a liquid state. The vapor is then condensed back into a liquid form and collected, which is then called the distillate. The distillate will be the liquid with the lowest boiling point of all the components in the mixture. This process can be repeated for different boiling point ranges and those multiple distillates will be different components of the original mixture.

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The specific gravity of methane is 0.554 and the specific gravity of propane is 1.52.

The specific gravity of a gas can be calculated using the formula:

Molecular Weight of Gas / Molecular Weight of Air = Specific Gravity

For methane:

Molecular weight of methane = 16.04 g/mol

Molecular weight of air = 28.97 g/mol

Specific Gravity = 16.04 g/mol / 28.97 g/mol = 0.554

For propane:

Molecular weight of propane = 44.10 g/mol

Molecular weight of air = 28.97 g/mol

Specific Gravity = 44.10 g/mol / 28.97 g/mol = 1.52

A propane leak is more dangerous than a methane leak because propane is heavier than air, so it sinks and can collect in low-lying areas such as basements and crawl spaces, where it can be ignited by a spark or flame. Methane, on the other hand, is lighter than air and tends to rise, making it less likely to accumulate in dangerous concentrations. Additionally, propane is more explosive than methane, so a propane leak can result in a larger and more destructive explosion.

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the complete question is :

Estimate the methane and propane-specific gravities (gas). 16.04 and 44.10 molecular weights respectively. (In commercial natural gas and propane, the main components are methane and propane; minor amounts of other compounds may be disregarded for this issue.) A propane leak or a methane leak, which is more hazardous? why?

The molarity of the solution by dissolving the 10.0 g of Al(NO₃)₃ in the enough water to make 250.0 ml of solution is 0.184 M.

The mass of the  Al(NO₃)₃ = 10 g

The molar mass of Al(NO₃)₃ = 212.9 g/mol

The number of moles = mass / molar mass

                                     = 10 / 212.9

                                     = 0.046 mol

The volume of the solution = 250 mL = 0.250 L

The molarity expression is :

Molarity = moles / volumes in L

Molarity = 0.046 / 0.250

Molarity = 0.184 M

Thus, the molarity of the Al(NO₃)₃ solution is 0.184 M  with the volume of  the 250 mL.

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The resonance contributor that is most important for protonation in methyl isocyanate is the one in which the nitrogen atom is double-bonded to the carbon atom, and has a formal positive charge, this is called a carbocation or a carbenium ion.

This resonance contributor is considered the most important because it shows the nitrogen atom with the greatest electron density, making it more susceptible to protonation.

In the reaction of methyl isocyanate with strong acids, such as sulfuric acid, the protonation occurs on the nitrogen atom of the molecule. The protonation process is determined by the relative acidity of the nitrogen atom and its electron-withdrawing groups, and thus the resonance contributor that is most important for the protonation is the one that shows the nitrogen atom with the greatest electron density.

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1. The illustration is potential energy

2. The amount of energy, given that the bell weighs 900 N is 82800 J

Potential energy is the energy possesed by an object by virtue of it's location. While kinetic energy is the energy of a moving object.

From the above information, we can conclude that the illustration from the question is potential energy

The amount of energy can be obtained as follow:

Energy = Force × height

Energy = 900 × 92

Energy = 82800 J

Thus, we can conclude that the energy is 82800 J

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Answer:

Balancing chemical equations is my priority!! :-)

[tex]Ca_{2}[/tex] + [tex]O_{2}[/tex] = [tex]Ca_{2} O_{3}[/tex]

On both sides Calcium (Ca) is balanced ( 2 and 2 )

Then Oxygen (O) is 2 on the reactant side and 3 on the product side.

Divide the subscripts (product subscript/reactant subscript) to give 1.5 (3/2)

Because you can't put 1.5 in an equation you multiply everything by 2.

Then it comes [tex]2Ca_{2}[/tex] + [tex]3O_{2}[/tex] = [tex]2Ca_{2} O_{3}[/tex]

Have a wonderful day! :-)

Answer:

24.3139697

Explanation:

23.995(0.7899)+24.986(0.1000)+25.992(0.1101) = 24.3139697

The original concentration of the sulfuric acid solution is  0.0044

To find the original concentration of a sulfuric acid solution with a pOH of 12.43, you would need to use the relationship between the acidity of a solution and its pH. The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration (pH = -log[H+]). The pOH of a solution is defined as the negative logarithm of the hydroxide ion concentration (pOH = -log[OH-]). Since the pH and pOH of a solution are related by the equation:

pH + pOH = 14

Given the pOH of 12.43, then you can calculate the pH as :

pH = 14 - pOH

pH = 14 - 12.43 = 1.57

The original concentration of the sulfuric acid solution is 10^(-pH)

[H+] = 10^(-1.57) = 0.0044.

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The functions of organelles help to keep a cell functioning because they generate different products such as proteins in mitochondria required to maintain cell homeostasis.

Cell organelles function as specialized structures within our cells that have specific functions. They are like tiny organs that work together to keep our cells functioning properly such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and peroxisomes.

Therefore, with this data, we can see that organelles aid in the upkeep of a cell by creating various substances, like the proteins made in mitochondria, that are vital for cell equilibrium.

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Answer:

A

Explanation:

it has 7 valence electrons and 4 electron shells.

There are 593.4 grams of formic acid in 100.0 mL of a solution of formic acid (HCOOH) that has a pH of 2.29.

To calculate the grams of formic acid in 100.0 mL of solution, three procedures are performed:

To calculate the concentration of a solution as a function of pH, the following formula is used:

pH = - log [H3O+]

where [H3O+] is eliminated

2.29 = - log [H3O+]

log[H3O+] = -2.29

10-2.29 = [H3O+]

[H3O+] = 129M

Then the number of moles in 100 ml of solution is calculated.

If in 1000 ml of solution there are 129 moles of formic acid

So in 100 ml of solution there are x moles of formic acid

X mole of formic acid = 100 ml x 129 moles / 1000 ml

X moles of formic acid = 12.9

Then with the molecular weight of formic acid (46 g/mol) the grams of this compound in 100 ml of solution are calculated.

If in 1 mole of formic acid there are 46 grams of compound

So in 12.9 moles there are x grams of compound

X g of formic acid = 12.9 mol x 46 g / 1 mol

X g of formic acid = 593.4

Therefore, in 100.0 mL of solution there are 593.4 g of formic acid.

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The compound can provide the energy for chemosynthesis is the carbon dioxide.

The Chemosynthesis is the process in which the certain microbes will create the energy by mediating the chemical reactions. so that  the animals that live around the hydrothermal vents will make their living from the chemicals that are coming out of the seafloor. The energy stored in the bundles or the packets is known as the photon. The compound can provide the energy for chemosynthesis is the carbon dioxide and the photons.

Thus, The compound carbon dioxide can provide the energy for chemosynthesis. Therefore the correct , option C is correct.

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The chemical pathway appears to be important both in some types of psychotic behavior and in the reinforcing properties of various drugs is  Mesolimbic dopamine pathway.

The reinforcing and addictive qualities of substances like nicotine are greatly influenced by the mesolimbic dopamine system.

Dopamine serves a variety of functions and is both a neurotransmitter and a hormone.

These mesolimbic pathways aid in the distribution of dopamine throughout the body. The nucleus accumbens receives dopamine from the ventral tegmental region via the mesolimbic dopamine pathways.

Dopamine produces a sense of reward and pleasure in the nucleus accumbens.

Dopamine flows from the ventral tegmental region to the nucleus accumbens anytime there is a sense of rewarding or pleasurable stimuli. Dopamine provides a sense of positive feeling, which leads to addictive behavior ( ie, drugs).

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