the university has 1.1 mw of solar panels installed on the upper level of regents garage. over the last year it has generated 1.26 gwh of electricity. according to pepco, generating electricity creates 937 lbs of co2 per kwh of electricity. how many tons of co2 emissions were avoided by using the electricity from the solar panels?

Answer:

Yes! You are correct

Explanation:

The higher the frequency of light, the higher its energy. .

Answer:

1 molecule of glucose contains 6 atoms of C, 12 atoms of H, and 6 atoms of O • 1 mole of glucose contains 6 moles of C atoms, 12 moles of H atoms, and 6 moles of O atoms.

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Explanation:

The corresponding concentration values of OH⁻  for the pH values

of following are -

1- 10⁻¹

3- 10⁻³

5- 10⁻⁵

7- 10⁻⁷

9-  10⁻⁹

11- 10⁻¹¹

pH is a logarithmic measure of the hydrogen ion concentration of an aqueous solution pH = -log[H+]

pH describes how acidic or basic an aqueous solution is, where a pH below 7 is acidic and a pH greater than 7 is basic. pH of 7 is considered neutral .

Functions of OH−    :

OH− functions as a base .

Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge.

Hence, this way pH values of these concentrations are mentioned .

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Answer:

Chromium appears Silvery grey in color, with a highly polished surface.

When Chromium is heated it forms a green color Chromic oxide.

Carbon monoxide is the byproduct of fuel combustion that may result in death if such combustion equipment is not properly vented and is denoted as option D.

This is a compound which is derived from the combustion of carbon in insufficient supply of oxygen. Carbon monoxide when inhaled replaces the oxygen content in the body which is dangerous because oxygen is needed for the survival of the cells of the body.

The carbon monoxide is usually formed when there is no properly vent thereby resulting in insufficient supply of air. This therefore results in its presence in the body results in the death of cells of the body system.

This is therefore the reason why carbon monoxide was chosen as the most appropriate choice.

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Out of given data, all data is close to actual value, so all are precise but only first data is very much close to actual value so it is accurate.

When measuring data, precision and accuracy are two crucial considerations. Both precision and accuracy indicate how closely a measurement comes to the real value.

But accuracy also indicates how closely a measurement resembles a known or recognized value, while precision indicates how repeatable a measurement is, even if it is far from the acceptable value. Out of given data, all data is close to actual value, so all are precise but only first data is very much close to actual value so it is accurate.

Therefore, out of given data, all data is close to actual value, so all are precise but only first data is very much close to actual value so it is accurate.

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1. Fluid compressibility (C): Fluid compressibility refers to the measure of how much a fluid's volume changes in response to a change in pressure.

2. Solution-gas/liquid ratio (SGLR): The solution-gas/liquid ratio represents the volume of gas dissolved in a given volume of liquid at a specific pressure and temperature.

3. Fluid formation volume factor (FVF): The fluid formation volume factor represents the ratio of the volume of a fluid at reservoir conditions (pressure and temperature) to its volume at surface conditions.

4. Fluid densities (ρ): Fluid densities refer to the mass per unit volume of a fluid.

5. Fluid viscosities (μ): Fluid viscosities represent the measure of a fluid's resistance to flow.

1.  Equation: C = -1/V * dV/dP

  Symbol: C

  Unit: 1/Pascal (Pa^-1)

  Correlation: The compressibility of fluids can vary depending on the fluid type. For ideal gases, the compressibility is inversely proportional to pressure.

2.Equation: SGLR = V_gas / V_liquid

  Symbol: SGLR

  Unit: Volumetric ratio (e.g., scf/bbl)

  Correlation: The solution-gas/liquid ratio is influenced by the pressure and temperature conditions, as well as the composition of the fluid.

3. Equation: FVF = V_reservoir / V_surface

  Symbol: FVF

  Unit: Volumetric ratio (e.g., bbl/STB)

  Correlation: The fluid formation volume factor depends on the composition and properties of the fluid, as well as the reservoir conditions.

4. Equation: ρ = m / V

  Symbol: ρ

  Unit: Mass per unit volume (e.g., kg/m^3)

  Correlation: Fluid densities can vary depending on the type and composition of the fluid. For example, water has a density of approximately 1000 kg/m^3.

5. Equation: No single equation; viscosity is measured experimentally using viscometers.

  Symbol: μ

  Unit: Pascal-second (Pa·s) or centipoise (cP)

  Correlation: The viscosity of a fluid is influenced by temperature and pressure. Different fluids exhibit different viscosities, ranging from low-viscosity fluids like water to high-viscosity fluids like heavy oil.

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Answer:

0.4 km/h  velocity is also the direction their going, in this case the person, that I'll name billy bob joe, is going in so yeh

Explanation:

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- Reactions A (CaBr₂ + 2KNO₃ → Ca(NO₃)₂ + 2KBr) and B (Ca(NO₃)₂ + 2HCl → CaCl₂ + 2HNO₃) would occur.

- Reactions C (3CuBr₃ + 2AlCl₃ → 3CuCl₂ + 2AlBr₃) and D (3AgNO +₃ K₃PO ₄→ Ag₃PO₄ + 3KNO₃) would not occur.

To determine which reactions would occur based on solubility rules, we need to consult the solubility rules in the Reference Tables (page 6). Here are the rules relevant to the given reactions:

1. Most nitrate (NO³⁻) salts are soluble.

2. Most chloride (Cl⁻) salts are soluble, except for those of silver (Ag⁺), lead (Pb²⁺), and mercury (Hg²⁺).

3. Most bromide (Br⁻) salts are soluble, except for those of silver (Ag⁺), lead (Pb²⁺), and mercury (Hg²⁺).

4. Most sulfate (SO₄²⁻) salts are soluble, except for those of barium (Ba²⁺), strontium (Sr²⁺), lead (Pb²⁺), calcium (Ca²⁺), and silver (Ag⁺).

5. Most phosphate (PO₄³⁻) salts are insoluble, except for those of ammonium (NH₄⁺).

Now let's analyze each reaction:

A. CaBr₂ + 2KNO₃ → Ca(NO₃)₂ + 2KBr

Based on the solubility rules, both CaBr₂ and KNO₃ are soluble salts. Therefore, this reaction would occur.

B. Ca(NO₃)₂ + 2HCl → CaCl₂ + 2HNO₃

Again, based on the solubility rules, both Ca(NO₃)₂ and HCl are soluble salts. Therefore, this reaction would occur.

C. 3CuBr₃ + 2AlCl₃ → 3CuCl₂ + 2AlBr₃

According to the solubility rules, CuBr3 is not a recognized compound. Therefore, this reaction would not occur.

D. 3AgNO₃ + K₃PO₄ → Ag₃PO₄ + 3KNO₃

According to the solubility rules, Ag₃PO₄ is insoluble, while KNO₃ is soluble. Therefore, this reaction would occur.

The complete question should be:

Using the solubility rules in your Reference Tables (page 6), which of the following reactions would occur?

A. CaBr₂ + 2KNO₃ → Ca(NO₃)₂ + 2KBr

B. Ca(NO₃)₂ + 2HCl → CaCl₂ + 2HNO₃

C. 3CuBr₃ + 2AlCl₃ → 3CuCl₂ + 2AlBr₃

D. 3AgNO₃ + K₃PO₄ → Ag₃PO₄ + 3KNO₃

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Answer:

Propane

Explanation:

Approximately 3.75 milliliters of 0.10 M Pb(NO3)2 are required to react with 75 ml of 0.20 M NaI.

To determine the amount of Pb(NO3)2 needed to react with NaI, we can use the concept of stoichiometry and the given molarities of the solutions. The balanced chemical equation for the reaction between Pb(NO3)2 and NaI is:

Pb(NO3)2 + 2NaI -> PbI2 + 2NaNO3

From the equation, we can see that 1 mole of Pb(NO3)2 reacts with 2 moles of NaI. Therefore, the ratio of the number of moles of Pb(NO3)2 to NaI is 1:2.

First, we need to calculate the number of moles of NaI in the given 75 ml of 0.20 M NaI solution. To do this, we multiply the volume (in liters) by the molarity:

75 ml * (1 L / 1000 ml) * 0.20 mol/L = 0.015 moles of NaI

Since the ratio of moles between Pb(NO3)2 and NaI is 1:2, we can determine the number of moles of Pb(NO3)2 needed by dividing the moles of NaI by 2:

0.015 moles of NaI / 2 = 0.0075 moles of Pb(NO3)2

Finally, we can calculate the volume of the 0.10 M Pb(NO3)2 solution needed to provide 0.0075 moles by dividing the moles by the molarity:

Volume = moles/molarity

Volume = 0.0075 moles / 0.10 mol/L = 0.075 L

Since 1 L is equal to 1000 ml, the volume in milliliters is:

0.075 L * (1000 ml / 1 L) = 75 ml

Therefore, approximately 3.75 milliliters of 0.10 M Pb(NO3)2 are required to react with 75 ml of 0.20 M NaI.

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Answer:

jzjsjsjsjjsjsjsjsjsjsjjsjsjdjdj

In an air-conditioning system, the refrigerant undergoes a cycle of evaporation and condensation to cool the air. The refrigerant starts as a low-pressure gas in the evaporator coil, where it absorbs heat from the surrounding air and evaporates into a low-pressure gas. This evaporation process cools the air as well. The evaporator coil plays a crucial role in this system by facilitating the evaporation of the refrigerant and cooling the air.

On the other hand, the refrigerant transitions from a high-pressure gas to a high-pressure liquid in the condenser. The condenser is responsible for releasing the heat absorbed by the refrigerant in the evaporator to the surrounding air. As the refrigerant condenses into a high-pressure liquid, it releases heat, allowing it to transfer the heat from the inside of a building to the outside.

This cycle of evaporation in the evaporator and condensation in the condenser enables the refrigerant to remove heat from the indoor space and release it outside. By continuously circulating the refrigerant and repeating this process, an air-conditioning system can cool the air inside a building and maintain a comfortable temperature.

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The rate constant, k, of a reaction can be calculated from the data collected from an experiment by fitting the data to the integrated rate law equation for a given order reaction.

Reaction is a response to a stimulus or event. It can be conscious or unconscious, and can range from physical changes, such as a reflex or a dilation of the pupils, to psychological changes, such as an emotional reaction or a change in behaviour.

The integrated rate law equation for a first-order reaction is ln(A) = -kt + ln(A0), where A is the concentration of the reactant at any given time, A0 is the initial concentration of the reactant, and k is the rate constant. By plotting ln(A) versus time and fitting the data to the equation, the rate constant k can be calculated from the slope of the best-fit line.

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It is a base because its pH is greater than 7

(not sure about the second sorry!)

Among the given gases, the gas that shows the greatest deviation from ideal behavior at 25 degrees Celsius and 1 atm is likely to be H2 (hydrogen).

1. Size and shape of molecules: Hydrogen gas (H2) consists of diatomic molecules that are very small in size. The size of the hydrogen molecule is relatively larger compared to other gases such as CH4 (methane), SO2 (sulfur dioxide), and O2 (oxygen). The small size of hydrogen molecules leads to a higher probability of molecular interactions and deviations from ideal behavior.

2. Intermolecular forces: Hydrogen gas has relatively weak intermolecular forces compared to other gases. Although it exhibits London dispersion forces, these forces are not as strong as the dipole-dipole interactions in molecules like SO2 and CH4 or the formation of double bonds in O2. The weaker intermolecular forces in hydrogen contribute to larger deviations from ideal behavior.

Based on the size and shape of molecules as well as the strength of intermolecular forces, hydrogen gas (H2) is expected to show the greatest deviation from ideal behavior among the given gases at 25 degrees Celsius and 1 atm.

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The thermal velocity of the atom in the given atmosphere would be approximately 2044.35 m/s.

The thermal velocity of an atom can be calculated using the formula:

v = sqrt((3kT) / m)

Where:

v is the thermal velocity of the atom,

k is the Boltzmann constant (1.38 x 10^-23 J/K),

T is the temperature in Kelvin,

m is the mass of the atom.

In this case, we have a temperature of 290.00 K and the atom is 4.00 times more massive than hydrogen. Let's assume the mass of a hydrogen atom is approximately 1 atomic mass unit (u) or 1.67 x 10^-27 kg.

The mass of the atom in question would be 4.00 times the mass of hydrogen, which is 4.00 * 1.67 x 10^-27 kg = 6.68 x 10^-27 kg.

Plugging these values into the formula, we get:

v = sqrt((3 * 1.38 x 10^-23 J/K * 290.00 K) / (6.68 x 10^-27 kg))

Calculating the thermal velocity gives:

v ≈ 2044.35 m/s

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815 mL of this solution contains 570.5 mL of water and 244.5 mL of alcohol, respectively.

We are given a solution of alcohol that is 30.0% (v/v). This indicates that there is 30.0 mL of alcohol in 100 mL of solution.

The volume of alcohol In the 815 mL solution must now be calculated.

As 30.0 mL of alcohol is present in 100 mL of solution.

Therefore, a solution of 815 mL  \(\frac{815}{100} *30.0 = 244.5mL\) of alcohol.

Alcohol, therefore, has a capacity of 244.5 mL.

We must now determine the water’s volume.

\(The volume of water = Volume of the solution - Volume of alcohol\)

Water volume = 815 mL – 244.5 mL

Water volume = 570.5 mL

As a result, the water’s volume is 570.5 mL.

Thus, there are 570.5 mL of water and 244.5 mL of alcohol, respectively, in 815 mL of this solution.

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There are three subshells that are attached to the electron at the 4p level.

The term orbital refers to the region in space where there is a high probability of finding an electron. We know that in the atom, there is an arrangement of the electrons into orbitals. Each of the orbitals have a specific energy. The energy that is available to the orbital is dependent on the value of the principal quantum number n as it species the distance of the orbital from the nucleus.

In the case of the electron that has the designation of quantum numbers n = 4, l = 1, this electron is found in the 4p level and there are three subshells that are attached to the electron at the 4p level.

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Answer:

The Eukaryotic cell has a nucleus

Explanation:

Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

To make the silver shiny again, we can do silver tarnishes. The balanced tarnishing reaction is 2Ag(s) + H2S(g) --> Ag2S(s) + H2(g). Hence, the correct coefficients for the reaction above are: 2, 1, 1, 1.

A balanced reaction is when the coefficient of all atoms in the reactants (the left side) is the same as the products (the right side). Given this equation:

Ag(s) + H2S(g) --> Ag2S(s) + H2(g)

The balanced reaction is:

2Ag(s) + H2S(g) --> Ag2S(s) + H2(g)

Hence, the coefficients of the reaction above are: 2, 1, 1, and 1.

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Answer:

two north poles and two south poles

Explanation:

A single magnet has a north pole and a south pole. If it is broken into two pieces, then each of the two pieces will have a north pole and a south pole.

No matter how many times or into how many pieces a magnet is broken, the resulting pieces will have two poles each.

Answer:

Each piece will still have a north pole and a south pole.

Explanation:

Answer:

Explanation:

Thus, if we have 6.022 × 10 23 O atoms, we say we have 1 mol of O atoms. If we have 2 mol of Na atoms, we have 2 × (6.022 × 10 23) Na atoms, or 1.2044 × 10 24 Na atoms. Similarly, if we have 0.5 mol of benzene (C 6H 6) molecules, we have 0.5 × (6.022 × 10 23) C 6H 6 molecules, or 3.011 × 10 23 C 6H 6 molecules.

For example the atomic mass of methane (CH4)is 12 amu for the carbon plus 4 x 1 amu for the four hydrogens, for a total of 16 amu. Therefore the molar mass of methane is 16g. We say that one mole of methane has a mass of 16 g, and that there are 6.022 x 1023 atoms in that mass of methane.

The number of atoms present in 0.75 mole of methane, CH₄ is 4.515×10²³ atoms

1 mole of CH₄ = 6.02×10²³ atoms

From Avogadro's hypothesis, we discovered that:

1 mole of CH₄ = 6.02×10²³ atoms

Therefore,

0.75 mole of CH₄ = 0.75 × 6.02×10²³

0.75 mole of CH₄ = 4.515×10²³ atoms

Thus, 4.515×10²³ atoms are present in 0.75 mole of CH₄

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Mashed unpeeled potatoes would be considered a heterogeneous mixture. A mixture is classified as heterogeneous when its components are visibly distinguishable and not uniformly distributed throughout the mixture.

In the case of mashed unpeeled potatoes, it consists of mashed potato flesh mixed with the skin.

The potato flesh and skin have distinct properties and textures. While the flesh is soft and creamy after being mashed, the skin retains its slightly tougher and fibrous texture.

These differences in texture and appearance indicate that the components of the mixture are not evenly distributed.

Upon closer inspection, you would be able to identify and separate the potato flesh from the skin. The skin particles would be visible and distinguishable within the mashed potatoes.

Therefore, due to the visible presence of distinct components that are not uniformly mixed, mashed unpeeled potatoes can be classified as a heterogeneous mixture.

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Subatomic particles that cause the mass of an atom to change are called isotopes. Isotopes are atoms of the same element that have an unequal number of neutrons in their nuclei.

This difference in the number of neutrons causes the mass of the atom to vary. For example, the most common form of carbon is Carbon-12, which has an atomic mass of 12 and contains 6 protons and 6 neutrons, while Carbon-14 has an atomic mass of 14 and contains 6 protons and 8 neutrons. The extra two neutrons make Carbon-14 slightly heavier than Carbon-12. The number of neutrons in an atom is determined by the number of protons and the element's atomic number, so when the number of neutrons changes, the mass of the atom changes as well. Isotopes can be naturally occurring or artificially created, and their properties may vary depending on the number of neutrons in the nucleus. Overall, isotopes are subatomic particles that cause the mass of the atom to change.

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Answer:

1.)C₃H₈O

2)OH

3.)1-propanol

1.) C4H8O

2.) C2H6O or CH3CH2OH

3.)Ethanol

Answer: In metallic bonding, valence electrons can move freely between atoms

Explanation:

when metals bond to one another, their outermost energy levels overlap. this allows valence electrons to move freely between atoms in what is sometimes called a “sea of electrons