What is the molarity of a substance in which 10.8 grams per f calcium chloride is dissolved in enough water to make to make 125 mL of solution?

Thickness of the fail in millimeter is 0.051mm

Thickness is the quality or state of being thick

Here given data is

aluminum(Al) =  24cm by 31cm

Mass =10.35g

Density = 2.70gcm³

We have to find the thickness of the fail in millimeter = ?

So the formula is

thickness = Volume/surface area

So first we have to calculate volume

Volume = mass/density

Volume = 10.35g/ 2.70gcm³

Volume = 3.83

Then the area of foil is

Area = 24cm×31cm

Area = 744cm²

Thickness = volume/area

Thickness = 3.83/744cm²

Thickness = 0.0051cm = 0.051mm

Thickness of the fail in millimeter is 0.051mm

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This particle, an/a ___ has a negative charge

The COD of a water sample is found to be 30 mg of O, per liter. What vol- ume of 0.0020 MK,Cr, will be required to titrate a 50-ml sample of the water…​

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23.4 grams of Al2(SO3)3 is yielded through a chemical reaction. How many moles is this?

What is the solubility of NaNO3 at 75C (graphed)

5. Find the molecular formula for a compound with a mass of 40 amu and the empirical formula C2H4.​

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The predicted binding energy for the electron in hydrogen in units of MJ/mol is -13.6 MJ/mol.

Using the value for the energy of an electron in a hydrogen atom in the ground state calculated using the Bohr model, we have:

E_binding = -E_electron = -(13.6 eV) = -2.18 × 10²-18 J/electron

To convert from J/electron to MJ/mol, we can use the following conversions:

1 J/electron * (1 mol/6.022 x 10²23 electrons) = 1.66 x 10²-24 J/mol

1 MJ = 10²6 J

So, putting it all together:

E_binding = (-2.18 x 10²-18 J/electron) * (1 mol/6.022 x 10²23 electrons) * (10²-6 MJ/1 J) = -13.6 MJ/mol

Therefore, the predicted binding energy for the electron in hydrogen in units of MJ/mol is -13.6 MJ/mol.

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A scientific principle describes a more specific set of relationships than is usually identified as law.

A scientific law describes an important relationship that is observed in nature to occur consistently time after time. The difference between a scientific principle and scientific law is usually one of the extents of the phenomena covered by the explanation, but there is not always a clear distinction between the two.

A scientific law is an explanation of an observed phenomenon. No explanation is given as to why or why the phenomenon exists. Explanations of phenomena are called scientific theories. Scientific laws predict outcomes for specific initial conditions. You can predict the color of your child's hair, or how far a baseball will travel if it is shot at a certain angle. Theory by contrast attempts to provide the most logical explanation for why things happen the way they do.

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Answer:

Its actually Cirrus

Explanation:

edge 2021

Answer:

Cirrus.

Explanation: I got right on EDGE 2022.

Answer:

You have to put equator in middle, trade winds on which ever side they are trading the items on, probaly north, and westerlies west, and jet streams around blue at the bottom, red at top and green in the middle.

Explanation:

I cant really explain it right because I don't know how to put the picture. I mean paste the picture on here

CAN YOU TELL ME HOW TO PUT PICTURE

Answer: Gas

Explanation: The gas particles have big distances between them. Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. Their vibration is related to their kinetic energy. In the solid the particles vibrate in place.

ANSWER

Selenium has 34 protons

Answer:

D) a four-fold increase

Explanation:

According to Gay-Lussac's law, which states that the pressure of a given amount of gas is directly proportional to the temperature at a constant volume, the pressure increases with an increase in temperature.

According to this question, at a fixed volume, a four-fold increase in the temperature of a gas will lead to a four-fold increase in the pressure as well.

The solution of KCl in water will undergo precipitation of KCl crystals as the temperature decreases from 50 °C to 20 °C and then to 34 °C due to the decreasing solubility of KCl in water.

What happens to a solution of KCl in water when cooled from 50 °C to 20 °C and then to 34 °C?

When the solution of KCl in water is cooled from 50 °C to 20 °C, the solubility of KCl in water decreases. As a result, some of the KCl will start to come out of the solution and form solid crystals.

Then, when the temperature of the solution is further decreased from 20 °C to 34 °C, the solubility of KCl in water decreases even further, causing more KCl to come out of the solution and form solid crystals. This is known as precipitation.

The amount of KCl that will come out of the solution depends on the solubility of KCl at the respective temperatures. The solubility of KCl in water is about 34 g/100 mL at 20 °C and about 42 g/100 mL at 34 °C. Therefore, when the solution is cooled from 50 °C to 20 °C, some KCl will come out of solution until the concentration in solution reaches about 34 g/100 mL. Further cooling to 34 °C will cause more KCl to come out of solution until the concentration in solution reaches about 42 g/100 mL.

The exact amount of KCl that will come out of solution can be calculated using thermodynamic models and experimental data on the solubility of KCl in water at different temperatures.

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Due to the principle of overlay, in an intact sequence of sedimentary stones, every single layer of rock is elder that the one above and younger that the one below it, with the oldest rocks at the bottom as the latest ones at the top

The multiple vertical layers of sedimentary material demonstrate the original horizontality concept (see Figure below). The law in deposition states that the youngest layers of rocks occupy the highest point whereas the earliest were at the bottom.

The Theory of superposition, that asserts that in an unbroken horizontal succession of rocks, the most ancient layers are on the bottom, and gradually younger ones on top, aids geologists in correlating rock strata all around the world.

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Taking into account the Brønsted-Lowry acid-base theory, the conjugate acid of HCO₂⁻ is H₂CO₂.

The Brønsted-Lowry acid-base theory (or the Brønsted-Lowry theory) identifies acids and bases based on whether the species accepts or donates protons or H⁺.

According to this theory, acids are proton donors while bases are proton acceptors. That is, an acid is a species that donates an H⁺ proton while a base is a chemical species that accepts an H⁺ proton from the acid.

So, reactions between acids and bases are H⁺ proton transfer reactions.

Then, a conjugate base is an ion or molecule resulting from the acid that loses the proton, while a conjugate acid is an ion or molecule resulting from the base that gains the proton:

acid + base ⇄ conjugate base + conjugate acid

Like a conjugate acid is an ion or molecule resulting from the base that gains the proton, the conjugate acid of HCO₂⁻ is H₂CO₂.

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Answer: 1.5mol NH3

Explanation: 1N2+3H2= NH3

                      0.5 mol N2x 3NH3/1molN2= 0.5x3= 1.5mol NH3

The waves that  has the greatest wavelength is Wavelength shown with 1 wavelength stretched over a long distance.

A wave could be a disturbance or variety that voyages through a medium or space, carrying vitality without transporting matter. Waves can take different shapes and happen totally different sorts of waves, counting mechanical waves and electromagnetic waves.

Mechanical waves require a medium to propagate, meaning they require a substance like water, discuss, or a strong fabric to transmit the wave. Illustrations of mechanical waves incorporate water waves, sound waves, and seismic waves. In these waves, particles of the medium sway or vibrate in a design, exchanging energy from one molecule to another.

Electromagnetic waves, on the other hand, don't require a medium and can travel through vacuum, such as in space. Electromagnetic waves comprise of electric and attractive areas swaying opposite to each other and to the heading of wave engendering. Illustrations of electromagnetic waves incorporate obvious light, radio waves, microwaves, infrared waves, bright waves, X-rays, and gamma beams.

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The term for producing a current by moving a wire through a magnetic field is electromagnetic induction.

When a conductor (such a wire) is moved through a magnetic field, a voltage is induced across the conductor, in accordance with Faraday's law of electromagnetic induction. The right answer is c.

Michael Faraday made the initial discovery of this phenomenon in the early 19th century. The strength of the magnetic field, the rate of movement, and the angle between the conductor and the magnetic field all affect how much voltage is induced.

Electric generators, which transform mechanical energy into electrical energy, work on the fundamental principle of electromagnetic induction. It serves as the foundation for numerous contemporary technologies, such as wireless charging, motors, and transformers.

In conclusion, electromagnetic induction is a key idea in physics and electrical engineering that outlines the procedure of generating a current by moving a conductor through a magnetic field.  The correct option is c.

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IUPAC name for the compound is 5,6 Dimethyl Heptene.

This refers to a naming based on the highest length of the carbon molecule- chains that are joined by either a single bond, continuous chain, or ring.

In IUPAC naming / Nomenclature, multiple bonds or atoms other than carbon and hydrogen are indicated by suffixes and prefixes with respect to a particular set of priorities.

Alkane= CnH2n+2

Alkene= CnH2n

Alkyne= CnH2n-2

C - Chain =7

H- Chain =14

CH₃ - bond= 2

Therefore,

n= 7

2n=14

It is an alkene hydrocarbon. The methyl group is present at the 5th and 6 chain.

Hence, the IUPAC name of the compound is 5,6 Dimethyl Heptene.

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Answer:

1. 2K(s) + Cl2(g) → 2KCI(s)

2. 4NH3(g) → 2N2(g) + 6H2(g)

3. 2AgNO3(aq) + CaCl2(aq) → 2AgCl(s) + Ca(NO3)2(aq)

4. CH4(g) + 2O₂(g) → CO2(g) + 2H₂0(g)

a) To calculate the minimum frequency of electromagnetic radiation required to release electrons from the metal, you can use the following formula:

f = W / h

where f is the minimum frequency of electromagnetic radiation required, W is the work function of the metal in joules, and h is the Planck constant in joules per second.

Plugging in the values for W and h, you get:

f = (5.86 x 10^-19 J) / (6.626 x 10^-34 J/s) = 8.9 x 10^14 Hz

This is the minimum frequency of electromagnetic radiation required to release electrons from the magnesium metal.

b) To calculate the kinetic energy of the ejected electronic light of frequency 2.00 x 10^14 Hz, you can use the following formula:

KE = hf - W

where KE is the kinetic energy of the ejected electron, h is the Planck constant in joules per second, f is the frequency of the electromagnetic radiation in hertz, and W is the work function of the metal in joules.

Plugging in the values for h, f, and W, you get:

KE = (6.626 x 10^-34 J/s) * (2.00 x 10^14 Hz) - (5.86 x 10^-19 J) = 1.32 x 10^-19 J - 5.86 x 10^-19 J = -4.54 x 10^-20 J

This is the kinetic energy of the ejected electron when light of frequency 2.00 x 10^14 Hz is used to irradiate the magnesium metal. Since the kinetic energy is negative, this means that the electron is not released from the metal when irradiated with this frequency. The frequency of the electromagnetic radiation needs to be higher than the minimum frequency required to release the electron in order for the electron to be ejected from the metal.

Answer: 79420J or 79.420 Kj

Explanation:

q=mc(t2-t1)

250g x 4.18J/g K x (98C-22C)= 79420J

Explanation:

is responsible for interrupting the interaction between pectins and solvent molecules

Answer:

9.36 g

Explanation:

The equation of the reaction is;

C8H18(g) + 25/2 O2(g) ----> 8CO2(g) + 9H2O(g)

Number of moles of octane = 10.3g/ 114 g/mol = 0.09 moles

1 mole of octane yields 9 moles of water

0.09 moles of octane yields 0.09 × 9/1 = 0.81 moles of water

Number of moles of oxygen = 23g/32g/mol = 0.72 moles

12.5 moles of oxygen yields 9 moles of water

0.72 moles of oxygen yields 0.72 × 9/12.5 = 0.52 moles of water

Hence oxygen is the limiting reactant;

Maximum mass of water produced = 0.52 moles of water × 18 g/mol = 9.36 g

Answer:

no it wont dissolves

Explanation:

iodine will only dissolve in solvents that lack of polarity. acetone is a strongly polar solvent. therefore iodine would not disslove in acetone.

hope this helps!

The thing that will happen to mangroves if nearby a coral reefs are destroyed is that:

The destruction that is known to have taken place in mangrove forests in the area of the coastal wetlands is known to be one that is highly  depleting the amount of natural tannins in the water.

Due to the above, this is known to have subjected the close by coral reefs to have what we call an undue UV radiation. Its effect is that the reefs are said to be sunburned a lot and then the coral bleaching takes place.

Therefore, The thing that will happen to mangroves if nearby a coral reefs are destroyed is that Option C: Reefs will receive less sunlight due to increased turbidity in the water.

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Answer:

In this reaction, Ca(OH)2 is a reducing agent. It reacts with hydrogen chloride to form calcium chloride and water. Therefore, the following reaction shows that matter is neither created nor destroyed in a chemical reaction: Ca(OH)2 + 2HCI -> CaCl2 + 2H20. The formation of calcium chloride and water from the hydrolysis of calcium hydroxide is not an example of matter being created or destroyed in a chemical reaction because it does not involve the breaking down of any bonds between atoms.

Explanation:

Answer:

68.4 mL of isopropanol

Explanation:

vol of solute/vol of solution ×100%=76.4% isopropanol

.764×89.6mL = 68.4 mL

The element which has undergone reduction is Manganese (Mn)

From the question, we are to determine which element has undergone reduction

First, we will define the terms oxidation and reduction

Oxidation  

Oxidation can be defined as gain of oxygen. It can also be defined as an increase in oxidation state

Reduction  

Reduction can be defined as loss of oxygen. It can also be defines as a decrease in oxidation state.

Now, we will determine the oxidation numbers of the elements both in the reactants and products sides

The oxidation state of Fe changed from +2 to +3. An increase in oxidation state indicates oxidation

The oxidation state of Cl did not change. It is -1 both in the reactants and products sides

The oxidation state of K did not change. It is +1 both in the reactants and products sides

The oxidation state of Mn changed from +7 to +2. A decrease in oxidation state indicates reduction.

Hence, the element which has undergone reduction is Manganese (Mn).

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NOTE: The oxidation states of O and H (oxygen and hydrogen) did not change.

It turns electrical energy into KE.

This is the correct statement of how a generator works:

A generator is described as a device that converts motive power or fuel-based power into electric power for use in an external circuit.

Generators contrary to general opinion do not create electricity instead it uses the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electric circuit. This flow of electrons makes up  the output electric current supplied by the generator.

The present-day generators work on the principle of electromagnetic induction that was discovered by Michael Faraday.

Faraday realized that the above flow of current can be created by moving an electrical conductor in a magnetic field and this movement creates a voltage difference between the two ends of the conductor which causes the electric charges to flow, hence generating electric current.

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Complete question:

How does the generator work? Select the statement that describes that.

______It turns electrical energy into KE.

_____ It turns sound energy into electrical energy.

_____ It turns electrical energy into sound energy.

_____ It turns electrical energy into thermal energy.

_____ It turns KE into electrical energy.