when nitric oxide is used in the dilation of smooth muscle cells, which of the following would interfere with the relaxation of the smooth muscle cells? inhibitors of...

The heat absorbed by the ice is given by the formula: heat = mass * specific heat capacity * change in temperature.

The mass of the ice is 165g. The specific heat capacity of water is 4.18 J/g°C. The change in temperature is 37.0°C - 0.0°C = 37.0°C.

The heat absorbed by the ice is: 165g * 4.18 J/g°C * 37.0°C = 29,894.5 J

To convert from J to kcal: 1 kcal = 4184 J. Therefore,

29,894.5 J / 4184 J/kcal = 7.13 kcal

The heat absorbed by the ice is 7.13 kcal

The process of dissolved solute particles being surrounded by the  water molecules in an aqueous solution is called solvation or hydration.

Solvation occurs when water molecules surround and interact with solute particles, usually ions or polar molecules, forming a stable solution. The water molecules surround the solute particles, with their polar ends facing the solute, creating a layer of water molecules around the solute particles, effectively dispersing and stabilizing them throughout the solution.

Solvation is a key process in many chemical and biological reactions that occur in aqueous solutions, as it helps to facilitate the dissolution of solutes and influences their properties and behavior in solution.

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--The given question is incomplete, the complete question is

"The process of dissolved solute particles being surrounded by water molecules in an aqueous solution is called ----------- ."--

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:

Incomplete combustion of fuels produces a very poisonous gas called carbon monoxide:Excessive inhaling of carbon dioxide gas can kill a person.

I don't know if this is correct, your question did not have much context.

ANSWER: From experience and observation, the pathogen that responds more faster to treatments are PARASITES.

This is because, our body are already used to parasite, as they feed and mostly live inside our body. Parasites becomes harmful to our body, when it is allowed to be much in the body, thereby weakening the immune system of the body. Intake of vaccination reduces the number of parasites in the body, which gives the immune system the chance of recovering and protecting the body.

Parasite does not replicate more faster like viruses and other pathogens. These makes it more easier for treatment to work more faster. They are also easily killed by taking the proper treatment, and the rate of their replications are very slow when compared to the rate of their death when vaccinated.

Some example disease caused by parasites are:

1) Giardiasis

2) Trichomoniasis

3) Malaria

4) Toxoplasmosis

5) Intestinal worms

6) Pubic lice

All this disease above responds very fast to medical treatment, unless when they is complications, which are mostly when the parasite has been allowed to cause more harm and replicate much in the body, without any treatment. This is why doctors advice patients that lives at the tropical regions to periodically vaccinate themselves on parasitic infections.

The name of the compound from the structure that we can see in the question is;

4,4-dibromohex-2one

The International Union of Pure and Applied Chemistry (IUPAC) established a systematic set of guidelines for naming organic compounds.

Find the compound's longest continuous chain of carbon atoms. The compound's name is derived from this chain, which also acts as the compound's parent chain.

Assign a number to each carbon atom in the parent chain to give each carbon atom in the compound a special identification. The end that is closest to the functional group or substitutes is where the numbering begins.

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Answer: 55.56 moles of MgO

Explanation:

1 mole = avogadro number

if 6.21x10^25 atoms then molecules of MgO (equal numbers of Mg and O atoms)

= 0.5*6.21x10^25 = 3.105 molecules of MgO

So moles of MgO = 0.5*6.21*10^25/avogadro number = 55.56

Explanation:

D. inner core and outer core

Answer:

The entropy change in the environment is 3.62x10²⁶.

Explanation:

The entropy change can be calculated using the following equation:

\(\Delta S = \frac{Q}{k_{B}}(\frac{1}{T_{f}} - \frac{1}{T_{i}})\)

Where:

Q: is the energy transferred = 5.0 MJ

\(k_{B}\): is the Boltzmann constant = 1.38x10⁻²³ J/K  

\(T_{i}\): is the initial temperature = 1000 K

\(T_{f}\): is the final temperature = 500 K

Hence, the entropy change is:

\( \Delta S = \frac{5.0 \cdot 10^{6} J}{1.38 \cdot 10^{-23} J/K}(\frac{1}{500 K} - \frac{1}{1000 K}) = 3.62 \cdot 10^{26} \)                                    

Therefore, the entropy change in the environment is 3.62x10²⁶.

I hope it helps you!          

Element (Si), Element (Oxygen) in molecular form (O2), Compound (H2O2), Compound (Fe2O3), Compound (CH4).

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Answer:

How do amoeba respire.

Define Diffusion.

Answer: Compaction and Cementation.

Explanation. Compaction occurs when the weight of overlying sediment compresses the sediment grains and reduces the amount of pore space between them, resulting in a more tightly packed sedimentary rock. Cementation occurs when mineral-rich groundwater moves through the pore spaces of the sediment, depositing minerals that bind the sediment grains together and form a solid rock.

Answer:

The answer is D

Explanation:

Non metals are:

Hydrogen (H)

Sulphur (S)

Phosphorus (P)

Carbon (C)

Fluorine (F)

Oxygen (O)

Nitrogen (N)

Chlorine (Cl)

Bromine (Br)

Helium (He)

Argon (Ar)

Iodine (I)

Neon (Ne)

Krypton (Kr)

Radon (Rn)

Selenium (Se)

Xenon (Xe)

To solve this we must be knowing each and every concept related to environment. Therefore, the correct option is option B among all the given options.

An environment may be simply defined as a system that includes all abiotic and biotic components that have an impact on human life. All flora and animals are considered biotic, or living, elements, whereas water, sunshine, air, temperature, etc. are considered abiotic.

Any good, service, or feature that benefits people and society might be considered one of an environment's resources. They might be anything that fulfills a person's requirements on a daily basis. Amount of oxygen in the water is a biotic factor of an aquarium environment.

Therefore, the correct option is option B.

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Answer: B: Water Temperature

Explanation: k12 test 1.04 Science Life semester 2

Answer:

1. Ions are either negatively or positively charged species in which the number of electrons and protons are not equal.

2. The chemical bond that arises due to the sharing of electrons is termed a covalent bond.

3. The positively charged ions are called cations, which comprise more protons than electrons.

4. An example of a polyatomic anion is the hydroxide anion.

5. The system of assigning an unambiguous name to a compound is called nomenclature.

Answer:

B. They Increase the [OH-]

Explanation:

Have a great day! :)

Taking into account the definition of the Arrhenius theory of acids and bases, the correct answer is option B. "Bases increase the concentration of hydroxide ions [OH⁻]"

An Arrhenius acid is defined as chemical substances that contain hydrogen, and that when dissolved in water produce a concentration of hydrogen ions or protons (H⁺), increasing the concentration of H⁺ in the solution.

That is, according to Arrhenius theory, an acid is a substance that dissociates H⁺ ions in aqueous solution.

On the other hand, according to this Theory, a Arrhenius base is any substance that, when dissolved, releases hydroxyl ions (OH⁻).

So, the correct answer is option B. "Bases increase the concentration of hydroxide ions [OH⁻]"

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Answer:

Geosphere and Hydrosphere.

Explanation:

Hot springs are heated by geothermal heat—heat from the Earth's interior. In volcanic areas, water may come into contact with very hot rock heated by magma. The geosphere and hydrosphere interact when hot springs form. The geosphere gets a little melted by the hot hydrosphere and then when the springs shoot up in the air they break some rocks.

Answer:

C. Burning wood

Explanation:

BURNING. Burning is a non-reversible chemical change. When you burn wood, the carbon in the wood reacts with oxygen in the air to create ash and smoke, and energy in the form of light and heat. This is a permanent change that cannot be undone – you cannot turn ashes back into wood.

Answer:

Can you translate it on English so we can understand

At STP, 6.56x1023 molecules of the carbon hydrogen complex must be burned for 24.1 litres of oxygen gas to be produced.

Every element has the same number of atoms in a mole, which is consistent with the definition of a mole as a measurement of quantity. The masses of 1 mole of various elements will, however, vary because the masses of the individual atoms vary so widely.

According to Avogadro's hypothesis, equal volumes of all gases at the same pressure and temperature contain an equal number of particles. A gas's overall volume is mostly made up of the void space between its particles.

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Answer:

mechanical energy

Explanation:

Answer:

its a

Explanation:

beacause the movement goes forward

Answer & Explanation:

To determine the mass of oxygen in a 4.5 g sample of the compound, we can follow these steps:

   Find the mass percentage of oxygen in the compound.

   Calculate the mass of oxygen in the 4.5 g sample using the mass percentage.

According to the provided information, the mass percentage of oxygen is 61.5%.

Now, let's calculate the mass of oxygen in the 4.5 g sample:

       Math

   "Mass of oxygen in 4.5 g sample = (Mass percentage of oxygen / 100) × Total mass of the sample"

Plugging in the values:

       Math

   "Mass of oxygen in 4.5 g sample = (61.5 / 100) × 4.5 g"

Now, calculate the result:

       Math

   "Mass of oxygen in 4.5 g sample = 0.615 × 4.5 g = 2.7675 g"

Thus, the mass of oxygen in a 4.5 g sample of the compound is approximately 2.7675 g.

Answer:

The answer is 4

Explanation:

=1+98−97+4−3+2−1

=99−97+4−3+2−1

=2+4−3+2−1

=6−3+2−1

=3+2−1

=5−1

=4

HCN, Na2SO4: Combination of compounds.

Mg3N2: Chemical compound.

CO2, H2O: Dissolution or hydration reaction.

Cu, Zn(NO3)2: Single-replacement reaction.

Na, N2: Combination of elements.

Let's analyze each chemical combination to determine the type of reaction involved:

HCN, Na2SO4:

The combination of hydrogen cyanide (HCN) and sodium sulfate (Na2SO4) does not represent a specific chemical reaction. It is simply the combination of two compounds.

Mg3N2:

Mg3N2 represents a chemical compound, magnesium nitride. It does not indicate a specific reaction.

CO2, H2O:

The combination of carbon dioxide (CO2) and water (H2O) represents a chemical reaction known as hydration or dissolution. When carbon dioxide dissolves in water, it forms carbonic acid (H2CO3), which can further dissociate into hydrogen ions (H+) and bicarbonate ions (HCO3-).

Cu, Zn(NO3)2:

The combination of copper (Cu) and zinc nitrate (Zn(NO3)2) represents a single-replacement reaction. Copper displaces zinc from the compound, resulting in the formation of copper nitrate (Cu(NO3)2) and zinc metal (Zn).

Na, N2:

The combination of sodium (Na) and nitrogen gas (N2) does not represent a specific reaction. It is simply the combination of two elements.

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As per the given balanced chemical equation  of the reaction, 2 moles or 46 g of Na needs to react with 3 moles or 84 g of N₂. Then 46.34 g of Na needs 84.6 g of N₂.

Sodium nitride, NaN₃ is an ionic compound formed by the donation of electron from the sodium metal to nitrogen atoms. The decomposition of sodium azide produce sodium metal and nitrogen gas.

As per the given balanced chemical equation  of the reaction, 2 moles or 46 g of Na needs to react with 3 moles or 84 g of N₂.

molar mass of N₂ = 28 g/mol

mass of 3 moles = 84 g

atomic mass of Na = 23 g/mol

mass of 2 moles = 46 g.

Then , mass of nitrogen gas required to react with 46.34 g of sodium is:

(46.34 ×84)/46 = 84.62 g.

Therefore, 84.62 g of nitrogen gas is used up in this reaction.

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Answer:k c;kz;dvk

fs;fksef ;;

Explanation:

;kk;dkf;vkd; kk

We can separate out a small sample of the dyes for identification purposes, but not separate the entire mixture by using chromatography.

Chromatography is a technique of separation of mixtures of liquids according to the nature of those liquids.

To get the process started, the mixture is dissolved in a substance called the mobile phase, which carries it through a second substance called the stationary phase.

The different components of the mixture travel through the stationary phase at different speeds, causing them to separate from one another. The nature of the specific mobile and stationary phases determines which substances travel more quickly or slowly, and is how they are separated. These different travel times are termed retention time.

Therefore, We can separate out a small sample of the dyes for identification purposes, but not separate the entire mixture by using chromatography.

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