In the reaction 2 Al3 3 O2- -> Al2O3, if starting with 0.15 moles of aluminum ions and 0.25 moles of oxide ions, which is the limiting reactant

Answer:

Van der waals forces

Explanation:

I just know

Answer: you have to talk to someone who wont mind wanting to wanting to like you a lot like that.

Explanation:  I wish I could be able to talk to someone who would want to get to like me like that, so its a very relatable situation.

Answer: Sediment is important because it often enriches the soil with nutrients. Areas rich in sediments are often also rich in biodiversity. Sedimentary soil is usually better for farming. Deltas and river banks, where much sediment is deposited, are often the most fertile agricultural areas in a region.

When working with acids, always add the acid to water, and not the other way around, to avoid chemical splattering.

This is known as the "water-first" rule, and it's important because when you add water to an acid, it can cause the acid to rapidly release heat and gas, which can cause splattering. This can be dangerous for the user and also can damage the equipment. However, when you add an acid to water, the acid is gradually diluted and the reaction is slower and safer. This method will also reduce the risk of chemical splattering and also reduce the potential for skin, eye or lung irritation caused by acid mists or vapors.

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The density of pure water is 1 g/cm^3.

Its density is 0.98 g cm 3 at room temperature, in comparison with the handiest zero.92 g cm 3 for ice, a reality that has to be defined through atomic, and molecular concepts. If ice has been no longer much less dense than water, it might sink, having a devastating impact on lake backside ecosystems. believe it or now not, ice is honestly about 9% much less dense than water. for the reason that water is heavier, it displaces the lighter ice, causing the ice to glide to the pinnacle.

The density of ice is about 90 percent that of water, but that could range because ice can contain air, too. meaning that about 10 percent of an ice cube or iceberg will be above the water line. The density of water is maximum at four∘C, and the density of the ice is much less than the water due to its susceptible intermolecular pressure of attraction. as the density of water is more, it's miles heavier than ice. therefore ice floats on the floor of the water. Ice continually floats due to the fact it's far less dense than everyday water. because frozen water molecules shape a crystal.

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Answer:

Hope it help you

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Plz mark my answer brainliest✍️✍️

Explanation:

Potassium chlorate which is an oxidant is mixed with sulfur, starch and glue to make the tip of matchstick. When we need to light up the fire, we rub the matchstick with the surface of matchbox which offers resistance. The friction between the tip and the surface is the main reason of fire.

REAL NAME - SHRESTH DUBEY

Explanation:

27 °0 bc that how it is so this is the answer

Answer:

Finally, coagulation occurs and reinforces the platelet plug with threads of fibrin which are like a molecular binding agent. The hemostasis stage of wound healing happens very quickly.

Explanation:

Hope it helps u

FOLLOW MY ACCOUNT PLS PLS

A.BREATHING THE PROCESS IN AIR IS EXCHANGED IN THE LUNGS

B.THE ACT SOWING SEEDS EVENLY

C.ITS WHEN NON DOMESTICATED ANIMALS

ARE EXTRACTED FROM THERE HABITATS

D.ITS A CELL THAT GIVES BLOOD IT'S RED

COLOUR

Explanation:

The balanced equation is

2  H2        +    02 ======> 2 H2 O

so it takes twice as many H2 moles as O2 to complete the reaction

  the chemist does not have enough  H2 (needs 8 moles)   , so H2 is the limiting reactant .

Answer:

Two positive aspects of using methane recapture systems are able to generate significant electricity. Another benefit is that the process of anaerobic digestion creates heat that can be used to warm buildings where animals are kept

Answer:  The correct answer is;

Two positive aspects of using methane recapture systems include lowering the impact on greenhouse gasses and the production of energy. Methane is a very potent greenhouse gas that is contributing to global warming. As a result, the recapturing process reduces the methane impacts of global warming by reclaiming and reusing the gas for other purposes. Recaptured methane can be stored and used to generate electricity or used as fuel to power updated vehicles and other engines on the farm. The overall benefits from this combination are reducing impacts causing global warming and lower the cost of electricity or fuel on the farm.

Explanation:  This answer has been confirmed correct.

Answer:

The answer is 3

C2H5OH + O2 CO2 +H2O (unbalanced)

C2H5OH +3O2(g). 2CO2(g)+3H2O(balanced)

According to the balanced chemical equation, C₂H₅OH + 3 O₂\(\rightarrow\) 2 CO₂ + 3 H₂O the coefficient of oxygen is three.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer

Explanation

Given

number of moles = 4.00 moles

Volume = 3.00 L

Required: Molarity

Solution

C = n/V C is the molarity/concentration, n is the moles and V is the volume

C

Answer:

This is not a true solution because the colloidal dispersion is not completely homogeneous, and it does not have uniform properties throughout.

Explanation:

hope i helped

Answer:

A fly hits a windshield of a truck.

Explanation:

newton's first law

The cellulosic ethanol cellulosic ethanol grain ethanol grain ethanol methane are considered biofuels. The two most common biofuels used today are ethanol and biodiesel.

Both of which are the  first generation biofuel technologies. The BETO is working with industry to develop next-generation biofuels from waste, the cellulosic biomass, and algae-based resources. Ethanol (often derived from corn in the United States and sugarcane in Brazil), biodiesel (derived from vegetable oils and liquid animal fats), green diesel (derived from algae and other plant sources), and the biogas are examples of the biofuels (methane derived from animal manure and other digested organic material).

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Answer:

Number of moles = 0.1058 mol

Explanation:

Density = 1.08 g/mL

Volume = 10ml

Density = Mass / Volume

Mass = Density * Volume

Mass = 1.08 * 10 = 10.8g

The molar mass of acetic anhydride = 102.09 g/mol

Molar mass = Mass / Moles

Upon solving for moles;

Moles = Mass / Molar mass

Moles = 10.8 / 102.09 = 0.1058 mol

The moles of acetic acid used in the experiment has been 0.1058 mol.

Density has been defined as mass of a substance per unit volume. The density has been expressed as:

\(\rm Density=\dfrac{Mass}{Volume} \)

The moles have been the mass of the substance with respect to the molar mass. The moles of a substance has been given as:

\(\rm Moles=\dfrac{Mass}{Molar\;mass} \)

The given sample of acetic acid has density = 1.08 g/ml

The volume of the sample used in the experiment has been 10 ml.

Substituting the values for the mass of acetic acid:

\(\rm 1.08=\dfrac{Mass}{10}\\ Mass=1.08\;\times\;10\;g\\ Mass=10.8\;g\)

The mass of the acetic acid used has been 10.8 g.

The molar mass of acetic acid has been 102.09 g/mol.

Substituting the values for the moles of acetic acid:

\(\rm Moles=\dfrac{10.8}{102.09} \\ Moles=0.1058\;mol\)

The moles of acetic acid used in the experiment has been 0.1058 mol.

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Answer:

it develops from the womb

Answer:

outer cells of the blastocyst

Explanation:

on edg:)

Diffusion and convection are two distinct processes that play a role in the dispersal of air pollution, but they differ in how they transport pollutants and their impact on dispersion.

Diffusion refers to the spontaneous movement of particles from an area of higher concentration to an area of lower concentration. It occurs due to random thermal motion of molecules. In the context of air pollution, diffusion allows pollutants to spread out gradually, dispersing them in various directions. However, diffusion alone is a relatively slow process, particularly for large-scale dispersion, and it may not be effective in rapidly distributing pollutants over long distances.

Convection, on the other hand, involves the transfer of heat energy through the movement of a fluid, such as air or water. In the atmosphere, convection occurs as warm air rises, creating upward currents and transporting pollutants vertically. As the air rises, it carries pollutants to higher altitudes, which can lead to their dispersion over larger areas. Convection is a more efficient process for the vertical transport and dispersion of pollutants compared to diffusion.

The impact of diffusion and convection on the dispersal of air pollution can vary. Diffusion primarily affects local dispersion, allowing pollutants to spread out in the immediate vicinity of emission sources. It is more significant in areas with minimal air movement. Convection, on the other hand, can facilitate the long-range transport of pollutants, particularly when large-scale weather systems are involved. Convection can carry pollutants over greater distances and contribute to regional or even global dispersion, depending on weather patterns.

In summary, diffusion and convection are both involved in the dispersal of air pollution, but they differ in the mechanisms of transport and the scale of dispersion. Diffusion leads to gradual spreading of pollutants locally, while convection enables vertical transport and dispersion over larger areas, including long-range transport depending on weather conditions. Understanding the interplay between these processes is crucial for assessing the extent and impact of air pollution.

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It is likely that the temperature of the steam is higher than the temperature of the water boiling in the kettle. The intense heat felt by Alka from the puff of steam supports this observation.

In general, the temperature of steam produced from boiling water is higher than the temperature of the water itself. When water boils, it undergoes a phase change from a liquid to a gas, forming steam.

During this phase change, the water absorbs heat energy from the heat source, such as a stove or electric kettle, and converts it into the latent heat of vaporization.

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure. At this temperature, the water molecules have enough energy to overcome the intermolecular forces and transition into the gaseous state.

However, steam is hotter than the boiling point of water because it contains additional heat energy in the form of latent heat. The heat energy absorbed during vaporization is stored as latent heat within the steam. As the steam gushes out of the spout of the kettle, it releases this latent heat energy, which can be felt as intense heat.

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Answer:

The correct order for the stages of melting candle wax is:

Explanation:

Answer:

Idon't know if this helps but I think it is a linear structure and if I am wrong I am so sorry

Answer:

1120 gm

Explanation:

6. Consider the reaction: CzHo (g) + 02 (8) - 4 CO2(g) + 6H2O (1)

(a) Balance the equation.

(b) How many grams of oxygen are required to react with 10 moles of ethane for a complete

combustion reaction?

FIRST, CORRECT THE EQUATION THEN BALANCE

2C2H6(G) + 7O2------------>  4CO2  + 6H2O

so for 10 moles of ethane, we need

7 X 5 = 35 MOLES O2

=35 MOLES O2

O2 HAS A MOLAR MASS OF 2X16 = 32 gm

35 MOLES OF O2 HAS A MASS OF 35 X 32 =1120 gm

The mass of hexane, C₆H₁₄ that would be needed to produce 562 grams of carbon dioxide, CO2 is 183 g

We'll begin by writing the balanced equation for the reaction.

2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O

From the balanced equation above,

528 g CO₂ were produced from 172 g of C₆H₁₄

With the above information, we shall determine the mass of hexane, C₆H₁₄ needed to produce 562 g CO₂. Details below:

From the balanced equation above,

528 g CO₂ were produced from 172 g of C₆H₁₄

Therefore,

562 g of CO₂ will react to produce = (562 × 172) / 528 = 183 g of C₆H₁₄

Thus, the mass of hexane, C₆H₁₄ needed is 183 g

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This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97. The incorrect representation for a neutral atom is 36Li

To determine the correct representation for a neutral atom, we need to consider the atomic number (Z) and mass number (A) of the element. The atomic number represents the number of protons in the nucleus, while the mass number represents the sum of protons and neutrons.

Let's analyze the given representations:

36Li:

This representation suggests that the element is lithium (Li) with a mass number of 36, which is incorrect. The correct mass number for lithium is approximately 6.94.

613C:

This representation suggests that the element is carbon (C) with a mass number of 13, which is correct. Carbon has different isotopes, and 13C represents one of its stable isotopes.

3063Cu:

This representation suggests that the element is copper (Cu) with a mass number of 63, which is correct. Copper has different isotopes, and 63Cu represents one of its stable isotopes.

1530P:

This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97.

Therefore, the incorrect representation for a neutral atom is 36Li, as it does not match the known properties of lithium.

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