Calculate the wavelength of radiation with a frequency of 7.13 x 1020 s-1

Answer:

Unit of resistance is Ω (Omega).

Explanation:

The ability to measure the oppose the flow of electric current is called resistance of a circuit. Its relation with voltage and current is given by Ohm's law as follows :

V = IR

R is resistance

Its unit is Omega and it is represented by Ω.

The unit of the electrical resistance is ohm Ω

The symbol of resistance is R.

Hence Option A) Symbol: R, Unit : Ω is the correct answer

Resistance is simply the measure of the opposition to current flow in an electrical circuit.

Ohm’s law states that the potential difference between two points is directly proportional to the current flowing through the resistance.

V = I × R

Where;

The unit of the electrical resistance is ohm Ω

The symbol of resistance is R.

Hence Option A) Symbol: R, Unit : Ω is the correct answer

Learn more about Ohm’s law here: brainly.com/question/2364325

#SPJ5

Answer:

unsaturated

Explanation:

Reference Table G provides solubility guidelines for selected salts in water at 25°C. However, since the temperature in the given problem is 45°C, we need to consult a solubility chart or table that provides solubility data at that temperature.

At 45°C, the solubility of NaNO3 in water is approximately 123 g/100 mL. Therefore, when 110 g of NaNO3 is dissolved in 100 g of water at 45°C, the resulting solution is unsaturated because the amount of solute (110 g) is less than the maximum amount of solute (123 g) that can dissolve in 100 g of water at that temperature.

So, the type of solution formed is unsaturated.

unsaturated is the answer

1) The acid hydrolysis of glyceryl trioleate (triolein) can be represented by the following equation:
Glyceryl trioleate + 3H2O (in presence of an acid catalyst) → Glycerol + 3 Oleic acid
2) The NaOH saponification of glyceryl trioleate (triolein) can be represented by the following equation:
Glyceryl trioleate + 3NaOH → Glycerol + 3 Sodium oleate
In both cases, glyceryl trioleate undergoes a reaction to form glycerol and fatty acids, with the difference being the catalyst used and the resulting products.

1) The equation for the acid hydrolysis of glyceryl trioleate (triolein) is:
Glyceryl trioleate + 3H2O → 3 Fatty acids + Glycerol
In this reaction, the ester bond between glyceryl trioleate and the three fatty acids is broken down by the addition of water, resulting in the formation of three fatty acids and glycerol.
2) The equation for the NaOH saponification of glyceryl trioleate (triolein) is:
Glyceryl trioleate + 3NaOH → 3 Soap + Glycerol

In this reaction, the ester bond between glyceryl trioleate and the three fatty acids is broken down by the addition of sodium hydroxide (NaOH), resulting in the formation of soap molecules and glycerol. This process is called saponification and is used in the production of soap.

To know more about glyceryl trioleate visit:

https://brainly.com/question/27345822

#SPJ11

The reaction rate would be approximately 8.3 times faster than at 323K

By the Arrhenius Equation

Ea/R (1/T1 -1/T2) = ln(k1/k2) The equation can also be expressed in numerous ways, and they are all valid.

NOTE: R = 8.314 J/K-mol, thus we'll convert Ea to joules as well (42,200 J/mol) as it contains joules (J) as a unit.

Even if we don't know k1 or k2, all we need to do is calculate the ratio, which should reveal the speed of the reaction at the two different temperatures. Setting k1 = 1 at random, we can solve for k2 by setting T2 = 343K and T1 = 323K.

ln(1/k2) = -42,200/8.314 (1/323 - 1/343)

ln 1 - ln k2 = -5076 (0.003096 - 0.002915)

-ln k2 = -5076 (0.0001810) = -0.9188

k2 = 8.29

Therefore, at 343K, the reaction rate would be approximately 8.3 times faster than at 323K.

Know more about  Arrhenius equation at:

https://brainly.com/question/13467424

#SPJ4

Answer:

Sodium bicarbonate or baking soda

Explanation:

Answer:

1. There are so many ethical concerns about biotechnology, some Ethical issues that arise from the application of modern biotechnologies include:

Discrimination of individuals because of their health or health history as a result of knowing their genetic information,  minimizing harms while maximizing benefits, Interference with nature, privacy.

2. a. Plants (maize, rice)

   b. Fish (GloFish)

3. For individuals, biotechnology has helped in the prevention and treatment of a wide range of diseases. For society, biotechnology saves time, improves the health and quality of food through a reduction in the use of pesticides and it can create new viruses and bacteria that cause diseases. Biotechnology could address global change since more genetically modified plants are grown.

Answer:

8.25 g HNO3 (please correct me if I'm wrong!)

The correct answer is 7.31 g HNO₃.

Nitric acid is used for the production of ammonium nitrate, a major component of fertilizers. It is also used for producing explosives like nitroglycerin and trinitrotoluene (TNT) and for oxidizing metals.

Please check the attached file for an explanation.

Learn more about nitric acid at

https://brainly.com/question/10082840

#SPJ2

Answer:

45 °C.

Explanation:

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

Heat (Q) = 1125 J

Mass (M) = 250 g

Final temperature (T₂) = 55 °C

Specific heat capacity (C) = 0.45 J/gºC

Initial temperature (T₁) =?

The initial temperature of the iron can be obtained as illustrated below:

Q = MC(T₂ – T₁)

1125 = 250 × 0.45 (55 – T₁)

1125 = 112.5 (55 – T₁)

Divide both side by 112.5

1125/112.5 = 55 – T₁

10 = 55 – T₁

Collect like terms

10 – 55 = –T₁

–45 = –T₁

Multiply through by –1

45 = T₁

T₁ = 45 °C

Therefore, the initial temperature of the iron is 45 °C

Answer:

D. amplitude

Explanation:

Letter d is the answer

Answer:

Explanation:

honesty i just know it has to be b or d because bases don’t donate. acids donate.

Substance A is mixed with water and donates 0.4% of its H⁺ ions, therefore given substance is a weak acid & show poor conduction of electric current.

According to the Arrhenius theory of acids and bases, acids are those species which gives H⁺ ion to the solution.

In the question it is given that, substance A is mixed with water and it donates H⁺ ion, from this it is clear that given substance is acid. It is also mention that it donates only 0.4% of its H⁺ ion means partial dissociation is observed, so we conclude that this acid is weak in nature. And due to weak dissociation and less number of available H⁺ ion it did not conduct electricity effectively.

Hence, option (D) is correct i.e. it is weak acid and a poor conductor of electric current.

To know more about acids, visit the below link:

https://brainly.com/question/12916250

The solubility product of the chromate ion (CrO₄²⁻) is 1.17  x 10⁻¹² .

The solubility product denoted as Ks, of an ionic compound is defined as the product of the concentration of the ions that exist in equilibrium with the solid compound in a saturated solution.

The balanced chemical equation is given as,

Ag₂CrO₄ ⇌ 2Ag⁺ + CrO₄²⁻

Thus,

[Ag⁺] = 2 [CrO₄²⁻]

By using the formula of Ksp we get,

Ksp = [Ag⁺] [CrO₄²⁻]

⇒ Ksp =  2 [CrO₄²⁻]  [CrO₄²⁻]

⇒ Ksp = 2 [CrO₄²⁻]²

Substituting the values of Ksp we get,

2.76 x 10⁻¹² = 2 [CrO₄²⁻]²

⇒ [CrO₄²⁻]² = 2.76 x 10⁻¹² /2

⇒ [CrO₄²⁻]² = 1.38  x 10⁻¹²

⇒ [CrO₄²⁻] = 1.17  x 10⁻¹²

Hence, the solubility product of the chromate ion (CrO₄²⁻) is 1.17  x 10⁻¹² .

​

Learn more about solubility product from the link given below.

https://brainly.com/question/1419865

#SPJ4

The volume of the granite was determined by water displacement and is found to be 9.35 ml. The volume of granite in cm³ is 9.35 cm³

We know that, 1 ml = 1 cm³

We need to convert the volume from ml to cm³

The volume of the granite that was determined by water displacement is observed to be 9.35 ml.

After the conversion of volume of granite from ml to cm³, its volume in cm³ would be

1 ml = 1 cm³

9.35 ml = 9.35 cm³

Therefore, the volume of the granite that was determined by water displacement is 9.35 cm³

To know more about Volume

https://brainly.com/question/10051198

#SPJ1

Answer:  Yes

Explanation:

Liquefied Gases: Liquefied gases are gases which can become liquids at normal temperature when they are inside cylinders under pressure. ... Non-Liquefied Gases: also known as compressed, pressurized or permanent gases. These gases do not become liquid when they are compressed at normal temperatures even at high pressures.

Answer:

A. ionizing energy increases

A tabular form in which the chemical elements are positioned according to the chemical and physical attributes is called the periodic table. The horizontal rows from left to right is referred as periods in the table.

The correct option is:

Option A. Ionization energy increases

This can be explained as:

Therefore due to the high proton number, the ionization increases across the period.

To learn more about ionization energy follow the link:

https://brainly.com/question/2120186

Answer:

The position of the moon during its orbit around Earth

Answer:

the angle you look at it from

Answer: Potassium bromide

Explanation:

To calculate the mass of magnesium we must subtract the weight of the beaker and the magnesium minus the weight of the beaker, we do it as follows:

So, the weight of Magnesium is 0.99g

The vapor pressure at saturation can be calculated by dividing the given vapor pressure by the relative humidity (as a decimal). The approximate saturation air temperature can be determined by finding the corresponding temperature on the saturation vapor pressure curve.

To find the vapor pressure at saturation, divide the given vapor pressure (16 mb) by the relative humidity (68%) expressed as a decimal (0.68). This calculation will yield the vapor pressure at saturation in mb.

To determine the approximate saturation air temperature, refer to the saturation vapor pressure curve. Find the temperature that corresponds to the vapor pressure at saturation obtained in the previous step. This temperature value represents the approximate saturation air temperature in °C.

The vapor pressure at saturation indicates the maximum amount of water vapor that the air can hold at a specific temperature. The saturation air temperature represents the temperature at which the air is fully saturated with water vapor and further cooling could result in condensation or the formation of dew or fog.

learn more about vapor pressure here:

https://brainly.com/question/29640321

#SPJ11

As a result, when two objects are close together and have enormous masses, their gravitational attraction is strongest.

According to Newton's law of universal gravitation, any two bodies in the universe are attracted to one another by a force that is inversely proportional to the square of the distance between them and a direct relationship between their mass products In other words, every particle of matter in the cosmos is attracted to every other particle by a force that is inversely proportional to the square of the distance between them and proportionate to their masses. Sir Issac Newton created the law in 1687.

According to their masses and separation, two objects will gravitationally pull one another.

The attractive force between two objects (F) is determined by Newton's law of universal gravitation and is equal to G times the product of their masses (m1m2) divided by the square of their distance

(r2), or F = Gm1m² / r2².

As a result, when two objects are close together and have enormous masses, their gravitational attraction is strongest.

To know more about newton law visit:

brainly.com/question/15280051

SPJ1

Answer:

Chemical reactions are endothermic if the heat of reaction is written on the reactant side of the equation. When writing a chemical process, the symbol for the heat of reaction is Δ. The heat of the reaction in exothermic reactions is written on the product side. Chemical reactions are endothermic if the heat of reaction is written on the reactant side of the equation. When writing a chemical process, the symbol for the heat of reaction is Δ. The heat of the reaction in exothermic reactions is written on the product side.

Explanation:

The energy that is either released or absorbed when chemicals are changed in a chemical reaction is known as the heat of reaction. The heat of reaction, also known as reaction enthalpy, is frequently given as either specific enthalpy in kJ/kg or kJ/L or as molar enthalpy in kJ/mol.

To know about heat of reaction,

https://brainly.com/question/22741007

#SPJ4

Chemical reactions are endothermic if the reactant's heat is placed on the reagent side of the equation.

Combination, disintegration, only one, double-replacement, and combustion are the five basic kinds of chemical processes. You may classify a reaction into one of these classes by looking at the reactants and products.

When writing a chemical process, the symbol for the reaction's heat is.

The heat of the reaction in thermal processes is recorded on the product side.

A + B → C + ∆

In endothermic reactions, the reactant side bears the heat of the process.

X + ∆ → Y + Z

To know more about Reaction visit:

https://brainly.com/question/28270550

#SPJ4

Answer:

Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid. This occurs when the internal energy of the solid increases, typically by the application of heat or pressure, which increases the substance's temperature to the melting point.

Measured value 28.7053 cm, which has six significant figures . Round the measurement to four significant figures is 28.71 cm

To count the significant number there are some rules to follow are :

Thus, Measured value 28.7053 cm, which has six significant figures . Round the measurement to four significant figures is 28.71 cm

To learn more about significant figure here

https://brainly.com/question/17345250

#SPJ1

Answer:

108.5

Explanation:

half of 150 is 75 and half of that is 32.5. Add that to 75 and you'll get your answer

112.5 g of iron is present in the alloy.

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

Percentage of iron (Fe) = 75%

Percentage of other elements = 25%

Mass of the alloy = 150 g

The mass of the iron present in the alloy can be obtained as follow:

\(Percentage = \frac{mass of element }{total mass }\\\\\)

75% = \(\frac{mass of Fe}{150}\)

\(0.75 = \frac{mass of Fe}{150}\\\\\)

Cross multiply

Mass of Fe = 0.75 × 150

Therefore, 112.5 g of iron is present in the alloy.

Learn more: https://brainly.com/question/8474670

Answer:

The growth of the plant

Explanation:

The growth of the plant from the bean soil is the dependent variable I believe. This is because it could change depending on many factors for e.g. the amount of light or water

Answer:

Increases

Explanation:

Alkali metal react vigorously with water (For eg sodium in water). In this process, H2 gas is given off and the metal hydroxide is produced.

The speed and the observed violence of the reaction increases as you go down the group or in other words, The Group 1 metals become more reactive towards water as you go down the Group.

This trend is observed because it takes less energy for reaction to occur with water as you move down the group. Lower activation energies = faster reactions

The 30.0ml of the pure water at the 282 K is mixed with the 50.0ml of the pure water at the 306 K. The final temperature of  mixture is 318 K.

The volume of the pure water at the initial temperature, V₁ = 30 mL = 0.03L

The volume of the pure water at the second temperature, V₂ = 50 mL = 0.05 L.

The first temperature, T₁ = 282 K

The second temperature, T₂ = 306 K

The density of the pure water, d = 1kg/L

The mass of the pure water at the first temperature :

m₁ = d V₁

m₁ = 0.03 kg

m₂ = d V₂

m₂ = 0.05 kg

The final temperature is :

Q gain = Q loss

(0.03) ( T - 282 ) = 0.05 ( 306 - T )

T = 318 K

The final temperature of the mixture is 318 K.

To lean more about temperature here :

https://brainly.com/question/13616504

#SPJ4

4. The heat needed to raise the temperature of the 30 kg copper jug from 20°C to 80°C is approximately 697,800 J.

5. The energy that the freezer needs to remove from 2 kg of water at 30°C to make it at 0°C is approximately 251,220 J.

To solve these problems, we can use the ideal gas law and the specific heat capacity of copper.

4. To calculate the heat needed to raise the temperature of a copper jug, we can use the formula:

Q = m * c * ΔT

Where:

Q is the heat energy,

m is the mass of the copper jug,

c is the specific heat capacity of copper, and

ΔT is the change in temperature.

Given:

Mass of the copper jug (m) = 30 kg

Specific heat capacity of copper (c) = 387 J/kgK (approximate value)

Change in temperature (ΔT) = 80°C - 20°C = 60°C

Substituting the values into the formula:

Q = 30 kg * 387 J/kgK * 60 K

Q ≈ 697,800 J

Therefore, the heat needed to raise the temperature of the 30 kg copper jug from 20°C to 80°C is approximately 697,800 J.

5. To calculate the energy that a freezer needs to remove from water, we can use the formula:

Q = m * c * ΔT

Where:

Q is the energy,

m is the mass of water,

c is the specific heat capacity of water, and

ΔT is the change in temperature.

Given:

Mass of water (m) = 2 kg

Specific heat capacity of water (c) = 4,187 J/kgK (approximate value)

Change in temperature (ΔT) = 30°C - 0°C = 30°C

Substituting the values into the formula:

Q = 2 kg * 4,187 J/kgK * 30 K

Q ≈ 251,220 J

Therefore, the energy that the freezer needs to remove from 2 kg of water at 30°C to make it at 0°C is approximately 251,220 J.

To know more about energy visit:

https://brainly.com/question/29210982

#SPJ11