All but which are contributing factors to higher temperatures urban heat islands?

A.) use of fossil fuels
B.) high number of trees
C.)concrete buildings
D.)asphalt streets

Answer:

C, Reactants rearrange to form new products

Explanation:

Different hormones responsible for different emotions have different structures. Hormones are responsible for regulating different emotional states in humans, including love, fear, stress, and anxiety. Hormones have different structures that determine their function in the body. For example, cortisol has a more complex structure than adrenaline and noradrenaline, and it is responsible for controlling the body's stress response system.

Hormones are the chemicals produced by different glands in the body, including the pituitary gland, adrenal gland, and hypothalamus, among others. Hormones are responsible for various emotions, including love, stress, fear, and anxiety, among others. In this sense, hormones are critical in regulating the emotional state of individuals. Hormones, however, have different structures, depending on the type of hormone. The structures are essential in the determination of the hormone's function in the body, including the emotions they elicit.
The different hormones responsible for different emotions have different structures. For example, adrenaline and noradrenaline have similar structures and are responsible for eliciting the fight or flight response in humans. Adrenaline and noradrenaline are both produced by the adrenal gland. Another hormone that is responsible for stress is cortisol, produced by the adrenal gland. Cortisol has a more complex structure than adrenaline and noradrenaline and is responsible for controlling the body's stress response system.
The hormone oxytocin is responsible for love and social bonding. Oxytocin is produced in the hypothalamus and released into the bloodstream. It has a peptide structure and is responsible for eliciting the feeling of love and social bonding. The hormone dopamine, on the other hand, is responsible for the feeling of pleasure and reward. Dopamine is produced in the brain, and it has a similar structure to adrenaline and noradrenaline.

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Warming 1g of liquid water from 0°C to 100°C required more energy than vaporizing 1g of water to 100c.

Vaporizing 1g of water at 100°C explains the latent heat of vaporization .This is defined as the heat required to change one mole of liquid at the boiling point under standard atmospheric pressure .This is a physical properties of the substance. It takes 100 calories to heat 1 gram of water to 0° to 100° c. here o°c is the freezing point of water and 100c is the boiling point of water. the energy required to warm  1 g of water to 100c is 540 calories. Evaporation of water defines the conversion of water from the liquid to the gaseus state and it involves lots of energy.539 calories of enenrgy is required for the vaporization of water to 100c.

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Answer: your Answer is D. Increases

Explanation:

If you mix switches with and without IGMP filter,  will happen is result in unnecessary traffic and congestion on the network

Mixing switches with and without IGMP filter can result in unnecessary traffic and congestion on the network, as the switches without IGMP filter will broadcast multicast traffic to all connected devices, regardless of whether they requested it or not. However, the switches with IGMP filter will only forward multicast traffic to devices that have requested it, reducing unnecessary traffic on the network.

If broken down by points when you combine switches with and without IGMP filters, the following will happen:

1. The switches without IGMP filter will broadcast multicast traffic to all connected devices, even if they did not request it.
2. The switches with IGMP filter will only forward multicast traffic to devices that have requested it.
3. The network may experience unnecessary traffic and congestion due to the switches without IGMP filter broadcasting multicast traffic to all devices.
4. The devices connected to the switches with IGMP filter will only receive the multicast traffic they requested, reducing unnecessary traffic on the network.

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The correct answer is b. Only at low pH can short-chain organic acids penetrate the microbial cell membrane. These acids have antimicrobial properties and can inhibit the growth of harmful bacteria in food.

When the pH is higher than 5.5, the acids become ionized and lose their ability to penetrate the cell membrane, making them less effective as preservatives. Microorganisms play a role in pathogenesis, food production, food spoilage, nutrition cycling, decomposition, industrial production, and even the creation of potential fuel sources.

When studying microbiology, keep in mind that most microbes do not cause disease in humans. Microbes can also serve important purposes. While some microorganisms contribute to food spoilage, others are used in the production of food products or to improve flavouring.

Microbial development is aided by moisture, a pH that is neutral or slightly acidic, and a high protein level in meals.

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Answer:0

Explanation: zero because it is the most stable form of oxygen in its standard state

The total mass of the products is 853.8 g.

We know that we have to apply the principles of stoichiometry so as to be able to obtain the mass of the mass of the products and then the total mass of the products that is obtained in the reaction.

We have that in the question; 496. 5 grams of lead II nitrate reacts with potassium bromide is such a way that the lead II nitrate would be completely consumed in the reaction. This means that the lead II nitrate is the limiting reactant in the reaction.

Number of moles of the lead II nitrate = 496. 5 grams /331 g/mol

= 1.5 moles

If 1 mole of  lead II nitrate produces 1 mole of lead II bromide

Mass of lead II bromide produced = 1.5 moles * 367 g/mol

= 550.5 g

If 1 mole of lead II nitrate produces 2 moles of potassium nitrate

1.5 moles of lead II nitrate produces  1.5 * 2 /1

= 3 moles of  potassium nitrate

Mass of  potassium nitrate = 3  moles * 101.1

= 303.3 g

Total mass produced = 550.5 g + 303.3 g

= 853.8 g

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Respuesta:

4.26 M; 12.8 N

Explicación:

Primer paso: Calcular la concentración volumétrica (Cv)

Usaremos la siguiente expression.

Cv = Cg × ρ

Cv = 30 g%g × 1.39 g/mL = 41.7 g%mL

Segundo paso: Calcular la molaridad

La concentración volumetrica es 41.7 g%mL, es decir, hay 41.7 gramos de soluto cada 100 mL de solución. Usaremos la siguiente fórmula para molaridad.

M = masa de soluto / masa molar de soluto × litros de solución

M = 41.7 g / 97.99 g/mol × 0.1 L = 4.26 M

Tercer paso: Calcular la normalidad

Usaremos la siguiente fórmula.

N = M × Z

donde Z para un ácido es igual al número de protones.

N = M × Z

N = 4.26 mol/L × 3 eq/mol = 12.8 N

A chemical combination of matter in definite (fixed) proportions is called a compound. Compounds are formed when two or more different elements chemically combine in fixed proportions to form a new substance.

The proportions of the elements in a compound are always the same, which gives them their characteristic properties. Pure substances can be either elements or compounds, while physical mixtures consist of two or more substances that are physically combined, but not chemically bonded. An emulsion is a type of physical mixture where two immiscible liquids are mixed together with the help of an emulsifying agent.
A chemical combination of matter in definite (fixed) proportions is called a(n): compound. A compound consists of two or more elements combined in a specific ratio, resulting in a new substance with unique properties. This differs from a physical mixture or an emulsion, which involve mixing substances without a fixed proportion or forming new substances. A pure substance can either be an element or a compound, but in this case, the term "combination" indicates a compound specifically.

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⁹⁴Pu₂₄₄-------> ⁹⁵Am₂₄₃ + electron is a nuclear equation for plutonium emitting gamma radiation

Alpha particles plutonium is created in an activator when uranium atoms absorb neutrons. Nearly all plutonium is man-made. Plutonium mainly emits alpha particle is a type of radiation that is easily ceased and has a short range. It also emits neutrons, beta particles, and gamma rays. It also emits neutrons, beta particles, and gamma rays.

It is contemplated toxic, in part, because if it were to be inhaled it could deposit in the lungs and finally cause damage. There are five common isotopes of plutonium because it emits alpha particles, plutonium is most menacing when inhaled.

So we can conclude that Plutonium isotopes emit alpha rays except for plutonium-241 for which the energy of beta electrons is curiously low.

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In the given electrochemical cell: Zn(s) | Zn²⁺(aq) || Ag⁺(aq) | Ag(s), silver (Ag) is being reduced. The reaction for the same can be represented as follows: Ag⁺(aq) + e⁻ → Ag(s).

Here, silver ion (Ag⁺) is gaining an electron (e⁻) to form silver metal (Ag) which is a reduction process. Therefore, the answer is "Ag (aq) and Ag(s)" which means silver is being reduced in the given electrochemical cell.

In chemistry, an electrochemical cell refers to a system that uses chemical reactions to produce electric current or harness electrical energy to drive chemical reaction and it consists of two electrodes (an anode and a cathode) immersed in an electrolyte solution.

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The Rutherford's model lacks an atom's electrical structure and electromagnetic radiation.

According to the idea, an atom has a tiny, compact, positively charged center called a nucleus, where almost all of the mass is concentrated, while light, negatively charged particles called Like planets circle the Sun, electrons also travel a great distance around it. Rutherford discovered that an atom's interior is mostly empty.

Rutherford's alpha scattering experiment did not come to any conclusions on how quickly positively charged particles travel. The nucleus, or core, of the atom contains the positively charged particles.

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Answer:

it's a precipitation reaction.

Explanation:

since a solid is produced, one of the elements are insoluble with one another–making a precipitate.

Answer:

If a linear graph has a negative slope then dependent value decreases in value as the independent variable increases. The line with negative slope is sloping down to the right

The decay product of Sulfur-35 by beta emission is Chlorine-35.

Sulfur-35 decays by beta emission, which means that a neutron in its nucleus is converted into a proton. This process releases a beta particle (an electron) and an antineutrino. The decay product is the element that results from this transformation.

Step-by-step explanation:

1. Sulfur-35 undergoes beta emission.
2. A neutron in the nucleus is converted into a proton.
3. The atomic number increases by 1 due to the addition of a proton.
4. The new element is identified based on its new atomic number.

Since the atomic number of sulfur is 16, after beta decay and the addition of a proton, the new atomic number becomes 17. Element with atomic number 17 is chlorine. Therefore, the decay product of Sulfur-35 by beta emission is Chlorine-35.

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Answer:

Cheers

Answer:

kelvin scale?

Explanation:

i`m not 100% on this one

Answer:

A

Explanation:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵ is the electronic configuration of Cr. the correct answer is D.

There are 24 electrons in all, according to the electron arrangement. A neutral atom will contain 24 protons if it has 24 electrons. The element is determined by its proton count. Chromium, symbol Cr, is the 24th element.

Since Cr contains 24 protons and the +2 charge would result in the nucleus having 26 protons, Cr²⁺ is invalid.  Cu is made up of 29 protons. The copper would be Cu⁵⁺ as there are only 24 electrons. Cu²⁺ was rejected for the same reason.

Therefore, 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵ is the electronic configuration of Cr.

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Answer:

Nvr XD

Explanation:

Answer:

the world may never know

Explanation:

Answer:

\(molar \: mass = (6 \times 12) + (12 \times 1) + 16 \\ = 100 \: g \\ 1 \: mole \: weighs \: 100 \: g \\ 4.00 \: moles \: will \: weigh \: (4 \times 100) \: g \\ = 400 \: g\)

The statement "Cross interactions between components of a mixture are represented by the ideal mixture model." is False.

The ideal mixture model represents interactions between components of a mixture as zero. According to the ideal mixture model, the energy of a mixture of gases is determined entirely by the kinetic energy of the individual molecules in the mixture.

A binary solution is a mixture of two pure components. An ideal solution is one in which the behavior of each component is ideal, implying that the intermolecular forces between the different molecules are identical, as are the intermolecular forces between the like molecules. In this case, the interactions between the molecules in the solution would be identical to the interactions between the molecules in the pure liquids.

The model that represents cross interactions between components of a mixture is the non-ideal mixture model. Non-ideal mixtures are mixtures in which the intermolecular forces between the components vary from one component to the next.

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Answer:

A. In a graduated cylinder, put some quantity of water and measure the initial volume. Then put a coin and measure the volume. To find the volume of the coin, simply subtract the initial volume (water only) from the ending volume (water + coin). To measure the mass, take a dry coin and place it on an electronic scale. Density = mass / volume, so divide the mass by the volume to calculate the density of the coin.

B. When measuring the volume, make sure to look at the graduated cylinder at eye level and read from the bottom of the meniscus.

Answer:

A

Explanation:

because the acid in your stomach can break down anything that you eat causing you to have to use the restroom

When a solid changes into a liquid, the particles of the solid move farther apart and gain kinetic energy. Therefore, the statement that is true about the particles of a solid when the solid changes into a liquid is: their kinetic energy increases.

What is Kinetic Energy?

It is a scalar quantity and is dependent on the mass and velocity of an object. The formula for kinetic energy is:

Kinetic energy = (1/2) * mass * velocity^2

In a solid, the particles are tightly packed and vibrate in a fixed position. When the solid is heated or the pressure is reduced, the kinetic energy of the particles increases and they begin to vibrate faster and move slightly away from their fixed positions. This causes the solid to start melting and the particles begin to slide over each other, forming a liquid. Therefore, the particles of the solid move apart and gain kinetic energy when the solid changes into a liquid.

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The underlined carbon in the molecule c−−h3ccch2cooh is a sp3 hybridized carbon, which means that it has four hybrid orbitals. Therefore, we can predict that the ideal values for the bond angles about the underlined carbon atom would be approximately 109.5 degrees.

The provided molecule (C−H3CCH2COOH), the underlined carbon atom appears to be the second carbon in the sequence (the one bonded to three hydrogen atoms). This carbon is sp3 hybridized, meaning it forms four sigma bonds, in this case, three bonds with hydrogen atoms and one bond with another carbon atom. In an ideal sp3 hybridized carbon atom, the bond angles should be approximately 109.5 degrees. This is due to the tetrahedral arrangement of the four sigma bonds around the carbon atom, which results in the most stable, least repulsive configuration between the electron pairs.
So, the ideal values for the bond angles about the underlined carbon atom would be approximately 109.5 degrees.

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Answer:

NH3

Explanation:

that's the formula for ammonia

Buoyancy is the upward force exerted by a fluid that opposes the weight of an immersed object. In the case of an air bubble, buoyancy is affected by the volume of gas trapped inside it.

As the volume of gas increases, so does the buoyant force acting on the bubble.

This occurs because the larger gas volume displaces more water, resulting in a greater upward force according to Archimedes' principle.

Consequently, a larger air bubble will experience more buoyancy and rise faster in the fluid compared to a smaller one.

In summary, the buoyancy of an air bubble is directly influenced by the volume of trapped gas, with larger volumes resulting in greater buoyant forces.

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Denatured alcohol and isopropyl alcohol are as similar as they as different. They are both used for cleaning and harmful to people if ingested. But isopropyl seems to be more effective than denatured alcohol. Denatured alcohol has been found to be more toxic and can harm our skin. But when it comes to cleaning, denatured alcohol can be used, but should not be used over isopropyl as it can leave behind residue, especially when it comes to electronic devices. Isopropyl, especially 70%, is more effective because it has more water, which can help it dissolve more slowly, penetrate cells, and kill bacteria.