What is AH in the equation AG = AH - TAS

If the given emf (1.5 volts) is greater than the emf you observed in your experiment, then the motor with 1.5 volts will move faster.

The speed of the motor depends on the strength of the induced emf in the coil of the electric motor.

emf = NdФ/dt

where;

F = BIL = qvB

where;

As the induced current in the coil of the motor increases, the speed of the motor will increase.

Thus, if the given emf (1.5 volts) is greater than the emf you observed in your experiment, then the motor with 1.5 volts will move faster.

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Answer:

The motor will spin slower

Explanation:

The other three motors have either 9, 12, or 15 loops of wire. The more loops, the faster it goes.

The balanced equation for the decomposition of hydrogen peroxide is H₂O₂(aq)→2H₂O(l)+O₂(g).

Decomposition reactions are those reactions in which a compound will decompose into small molecules.

Hydrogen peroxide will decompose into water molecule and oxygen gas, balanced chemical equation will be represented as:

H₂O₂(aq) → 2H₂O(l) + O₂(g)

Where all atoms are present in equal quantities on both side of the equation.

Hence balanced decomposition reaction of H₂O₂ is H₂O₂(aq)→2H₂O(l)+O₂(g).

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Answer:

Factors Affecting the Preferential Discharge of Ions in Electrolysis

Answer:

Scientists have measured global temperatures for over a hundred years and see that the Earth is getting hotter. The trend can be best visualized by comparing each year’s average temperature with the long-term average. This figure shows observations of the world’s annual average temperature made by the National Oceanic and Atmospheric Administration (NOAA). It compares each year’s temperature to the average over the entire century. Blue bars are years that were cooler than average and red bars are years that were warmer than average. In recent decades, the years have always been hotter. If there were no long-term temperature trend, you would expect a mix of red and blue bars throughout the record. That’s not what we see.

Extra greenhouse gases in our atmosphere are the main reason that Earth is getting warmer. Greenhouse gases, such as carbon dioxide (CO2) and methane, trap the Sun's heat in Earth's atmosphere.

Marine heat waves have already doubled in number since 1980 and are expected to become more intense as temperatures rise

Explanation:

Answer:

D

Explanation:

Recall that boiling points increase with stronger intermolecular forces.

Because halogens are diatomic molecules, they are nonpolar and lack the ability to form hydrogen bonds. Therefore, the only IMF they possess are London dispersion forces.

Recall that London dispersion forces increase with increasing polarizability, which is higher in larger molecules due to the increased number of electrons.

The largest halogen is iodine (I₂). Therefore, it will have the strongest IMF and hence the highest boiling point.

What is primarily released in radioactive decay is : ( D ) Particles or electromagnetic waves

Radioactive decay is the breakdown of the nuclei of atoms which results in the release of energy and particles ( matter ) from the atomic nucleus. the energy released in the process is known as ionizing energy.

The primarily released particles in a radioactive decay are the alpha,beta and gamma particles

Hence we can conclude that primarily released in radioactive decay is : ( D ) Particles or electromagnetic waves

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The main purpose of filtration is to separate particles and fluid; therefore, the words to complete the phrase are particles and fluid.

This is a method used to separate particles in a suspension (substance that contains fluid and large particles).

The main idea of filtrating a substance is to separate the particles from the fluid.

When tea is made, a filter is usually used to separate the leaves (solid particles) from the fluid.

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Answer:

700 kJ

Explanation:

There are two C-O bonds in CO2

2 * 350 = 700

If 0.01 mol of neon gas at a particular temperature and pressure occupies a volume of 0.225 L, then 0.05 mol of neon gas would occupy a volume of 1.125 L under the same conditions.

Given:

Number of moles of neon gas (n₁) = 0.01 mol

Volume of neon gas (V₁) = 0.225 L

We are required to find the volume of neon gas (V₂) when the number of moles (n₂) is 0.05 mol under the same conditions.

The relationship between the number of moles, volume, and pressure of a gas is given by the ideal gas law: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

Since the temperature and pressure are the same in this case, we can rearrange the ideal gas law equation to solve for the volume:

V = (n₁ * V₁) / n₂

Substituting the given values into the equation:

V₂ = (0.01 mol * 0.225 L) / 0.05 mol

V₂ = 0.00225 L / 0.05 mol

V₂ = 0.045 L/mol

Therefore, 0.05 mol of neon gas would occupy a volume of 1.125 L under the same conditions.

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The hydronium ion concentration of a solution is 56,263. The solution is acidic.

pH is potential hydrogen. It is the measurement of the acidity and basicity of any solution.

Given the pH of solution is 4.75

By the formula of hydronium ion

[tex]\rm pH = -log[H_3O^+]\\\\4.75 = -log[H_3O^+]\\\\antilog - 4.75 [H_3O^+]\\\\H_3O^+ = 56,234[/tex]

Thus, the  hydronium ion concentration of a solution is 56,263. The solution is acidic.

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Answer:

Sedimentary rocks

Explanation:

Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation.

The process of deep sediment burial causes sediment to get compressed and cemented resulting in sedimentary rock. Here the recorded observations of the scientist is about sedimentary rocks. The correct option is B.

The rocks which are formed by the deposition and subsequent cementation of the material at the surface of the earth within the bodies of water can be defined as the sedimentary rocks. They are of three types. They are organic, clastic and chemical sedimentary rocks.

Sedimentary rocks are generated  by the accumulation of the existing rocks or fragments of extinct organisms on the earth surface. They are formed from the pre-existing rocks or pieces of once living organisms.

The common sedimentary rocks are sandstone, limestone and shale. Biologic sedimentary rocks are formed when large number of living things die. Chert is an example for this.

Thus the correct option is B.

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Answer:

Number 4 is the answer

Explanation:

I hope it will help you

Answer:

B

Explanation:

You might want to pick "A sound is created" No that answer is just fine. If you listen when sitting around a campfire, you might hear the crackling of what is burning. Burning is an excellent example of a chemical change. Wood becomes ash.

The answer is a change in the state of matter. (B). That need not indicate a chemical change. In fact, most of the time, a change in matter is a physical change.

Answer: B

Answer:

The rocks contain iron that points in the direction the rocks move away from the ridge.

Answer:

D. Material releases heat to its surroundings.​

Explanation:

use the ex in exothermic to remember the word

exit

as in

heat is exiting the material

khan academy

The substances in order of increasing vapor pressure NF₃ NH₃ BCl₃ is NH₃< NF₃ < BCl₃. The correct option is A.

The pressure is exerted by a vapor in thermodynamic equilibrium with the developing close (solid or liquid) in a closed system at a given temperature is referred to as vapor pressure (or equilibrium vapor pressure).

Vapor pressure can be calculated by Clausius-Clapeyron equation.

Thus, the correct option is A, NH₃< NF₃ < BCl₃.

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Explanation: To make the salt solution of 15% with 15 gm as the mass of the solute, the mass of the solvent must be 85 gm. Therefore, 85 gm of water should be added.

Answer:

b

Explanation:

Answer:

B. Temperature

Explanation:

The rate of a reaction is defined as the speed at which the reactants are converted into products. Factors influencing the rate of a reaction are concentration, catalyst, temperature, surface area,  and pressure, etc.

In case of the reaction rate of gases, pressure will only have its affect as pressure do not have any influence on solid and liquid.

Answer:

a rock's appearance changing over time due to exposure to acid rain

♡ The Question/Task(s)! ♡

✦ || Which of the following is an example of a chemical change?

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♡ The Answer(s)! ♡

✦ || The answer is, "A rocks appearance changing over time due to exposure to acid rain"!

I apologize in advance if the answer is incorrect! ♡

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♡ The Explanation(s)/Step-By-Step! ♡

✦ || The acid rain is caused by chemical reactions from sulfur dioxide, nitrogen oxides, and other chemicals that combine with the atmosphere's oxygen and water causing the chemical change!

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♡ Tip(s)! ♡

✦ || No Tips Provided!ヽ(>∀<☆)ノ

Clastic rocks are classified by grain shape, grain size, and sorting. Chemical sedimentary rocks are precipitated from water saturated with dissolved minerals. Chemical rocks are classified mainly by the composition of minerals in the rock.

hi again, hope this helps ^^

Answer: The difference is clastic rocks are classified by grain size, grain shape, and sorting. Chemical sedimentary rocks are precipitated from water saturated with dissolved minerals.  They are also mainly classified by the composition of minerals that are in the rock.

Explanation:

Dalton's Law

P tot = P H₂O + P gas

95.0 = 3.17 + P gas

P gas = 91.83 kPa

Answer:

228.38g of CO2

Explanation:

When the number of hydroxide ions decrease then the level of hydronium ions in a solution increases.

pH of solution gives idea about the acidity or basicity of the solution and pH will be represented as:

pH = -log[H⁺]

If in any solution number of hydroxide ions decreases as compared to the concentration of hydronium ions, then the concentration of hydronium ions increases as a result of which acidity of the solution also increases.

Hence, level of hydronium ions increases.

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Answer:

the  anser is the periodic table of the elements

Explanation:

The resistance of the wire is directly proportional to the length of the wire, l.

Resistance is given as the ability of the wire to resist or stop the flow of current. The resistance of the wire can be given to have the formula:

[tex]\rm Resistance=\dfrac{length }{area}[/tex]

Thus, it can be given that the resistance of the wire is inversely proportional to the area of the cross-section and directly proportional to the length.

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Chlorine gas can be produced in the lab by the reaction is K₂Cr₂O₇ + 14HCl → 2KCl + 2CrCl₃ +7H₂O + 3Cl₂.

Chlorine gas is produced in many ways in laboratory. One of the ways is from potassium chromium oxide with hydrochloric acid.

The result is potassium chloride and chromium chloride and water and three molecules of chlorine.

Thus, the reaction is K₂Cr₂O₇ + 14HCl  →  2KCl + 2CrCl₃ +7H₂O + 3Cl₂.

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​

The balanced equation for NaOH and HCl is HCl(aq) + NaOH(aq) ⇌ NaCl(aq) + H₂O(l).

A balanced equation has the reactants are on the left side of the arrow, whereas the products are on the right.

The number in front of a chemical formula denotes the number of moles in a compound. The number of atoms in a single molecule is indicated by subscripts (numbers below an atom).

Thus, the balanced equation for NaOH and HCl is HCl(aq) + NaOH(aq) ⇌ NaCl(aq) + H₂O(l).

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