How many grams of lithium hypochlorite (LiClO) are there in 0.649 mol ?

Decomposers are organisms that convert dead plants or animals into the nutrients needed by living vegetation.

The energy-transfer capacity of an environment depends on decomposers. They break down decaying organisms into simpler inorganic materials, releasing nutrients that can be used by main producers.

Decomposers are a class of organisms that make up the last component in the food chain. They decompose dead vegetation and animals and replenish the soil's essential nutrients. Because they are the original source of energy that is passed between other organisms, primary producers are crucial to the entire food chain.

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1) 155.52 g of oxygen of magnesium chlorate. 2) 6,246.41 g of copper(I) sulfide is produced from 78.5 moles of copper. 3) 175.95 kg of potassium produce 9.00 x \(10^3\) . 4) 1.49 x \(10^-4\)g of calcium oxide is formed from 2.95 x \(10^-6\) moles of aluminum oxide and calcium phosphide.

1. The balanced equation for the decomposition of magnesium chlorate is:

2Mg\((ClO_{3})\)2(s) → 2MgO(s) + \(3O_{2} (g)\) +\(2Cl_{2} (g)\)

From the equation, 2 moles of magnesium chlorate produce 3 moles of oxygen gas.

So, 3.24 moles of magnesium chlorate will produce (3/2) x 3.24 = 4.86 moles of oxygen.

The molar mass of oxygen is 32 g/mol.

Therefore, the mass of oxygen produced is:

4.86 moles x 32 g/mol = 155.52 g

2. The balanced equation for the reaction between copper and sulfur is:

2Cu(s) + S(s) → \(Cu_{2}S(s)\)

From the equation, 2 moles of copper react with 1 mole of sulfur to produce 1 mole of copper(I) sulfide.

So, 78.5 moles of copper will produce (1/2) x 78.5 = 39.25 moles of copper(I) sulfide.

The molar mass of copper(I) sulfide is 159.16 g/mol.

Therefore, the mass of copper(I) sulfide produced is:

39.25 moles x 159.16 g/mol = 6,246.41 g

3. The balanced equation for the reaction between potassium and water is:

2K(s) + 2\(H_{2}O\)(l) → 2KOH(aq) + \(H_{2}\)(g)

From the equation, 2 moles of potassium react with 2 moles of water to produce 1 mole of hydrogen gas.

So, 9.00 x \(10^3\) moles of hydrogen gas will be produced by the reaction of (1/2) x 9.00 x \(10^3\) = 4,500 moles of potassium.

The molar mass of potassium is 39.10 g/mol.

Therefore, the mass of potassium required is:

4,500 moles x 39.10 g/mol = 175,950 g or 175.95 kg

4. The balanced equation for the reaction between calcium phosphide and aluminum oxide is:

\(3Ca_{3}P_{2}\)(s) +\(10Al_{2}O_{3}(s)\) → 9CaO(s) + \(2Al_{2}S_{3}\)(s) + \(6P_{4}\)(g)

From the equation, 3 moles of calcium phosphide react with 10 moles of aluminum oxide to produce 9 moles of calcium oxide.

So, 2.95 x\(10^-6\) moles of aluminum oxide will produce (9/10) x 2.95 x \(10^-6\) = 2.655 x \(10^-6\) moles of calcium oxide.

The molar mass of calcium oxide is 56.08 g/mol.

Therefore, the mass of calcium oxide formed is:

2.655 x\(10^-6\) moles x 56.08 g/mol = 0.000149 g or 1.49 x \(10^-4 g\).

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Answer:

I think the answer is the same number of protons.

Explanation:

I think the same element contain same number of protons.

Answer:

D) SrCO3(s) + 2 HNO2(aq) → Sr(NO2)2 + H2O + CO2(g)

Explanation:

When an acid react with carbonate, it produces nitrate, carbon-dioxide gas and water molecule. When nitrous acid react with Strontium carbonate, three products are formed i. e. Strontium nitrate, carbon-dioxide gas and water. In the reaction, both nitrous acid and Strontium carbonate exchange their partners with each other and forming a different products.

Answer:

Option E is correct.

The net ionic equation is given as

SrCO₃(s) + 2H⁺ → Sr²⁺ + H₂O + CO₂(g)

Explanation:

When acids react with carbonate compounds, it leads to the liberation of CO₂, hence, when an aqueous solution of HNO₂ is poured onto a solid pile of SrCO₃, the balanced overall equation is given as

SrCO₃(s) + 2HNO₂(aq) → Sr(NO₂)₂ + H₂O + CO₂(g)

But for the net ionic reaction, it is obtained by eliminating ions that occur on both sides of the overall reaction. Note that ions exist onlubone the aqueous compounds.

Hence, the two aqueous compounds that exist in the balanced overall equation are

2HNO₂(aq) on the left hand side and Sr(NO₂)₂ on the right hand side

In their ionic form, 2HNO₂ ⇌ 2H⁺ + 2NO₂⁻

And Sr(NO₂)₂ ⇌ Sr²⁺ + 2NO₂⁻

And it is evident that the ion that occurs on both sides and needs to be deleted is NO₂⁻,

Hence, the net ionic equation is

SrCO₃(s) + 2H⁺ → Sr²⁺ + H₂O + CO₂(g)

Hope this Helps!!!

Yes, that statement is generally correct. A scientific law is a statement that describes a phenomenon or pattern in nature, often expressed mathematically, without attempting to explain why it occurs. A scientific theory, on the other hand, is a well-substantiated explanation for a set of phenomena, based on empirical evidence and scientific reasoning.

A scientific law summarizes what happens in a particular situation, often in the form of an equation or formula, whereas a scientific theory attempts to explain why it happens.

For example, the law of gravity describes the attraction between masses, but it does not explain why this attraction occurs. In contrast, the theory of general relativity attempts to explain the underlying principles of gravity, including its effects on the curvature of space-time.

It's worth noting that both scientific laws and scientific theories are based on empirical evidence, but they serve different purposes in scientific inquiry. Laws describe what happens in a particular situation, while theories attempt to explain why it happens.

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Answer:

1100000000

Explanation:

Answer:

1100000000

Explanation:

I did the math

The given statement "production associates are not allowed to view the process safety management documents. They are only for supervisors and upper management" is true.

These documents are typically intended for supervisors and upper management, as they contain information related to the management of hazards and risks associated with specific processes or operations. This is to ensure that the management team has the necessary information to make informed decisions about process safety and to ensure that appropriate safety measures are in place to protect workers and the surrounding community.

Hence, It is important to note that access to PSM documents should be based on an individual's specific job responsibilities and the level of access needed to perform their duties. Some production associates may have access to certain PSM documents if their job responsibilities require it.

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production associates are not allowed to view the process safety management documents.They are only for supervisors and upper management? true or false.

The equation C2H4(g) + H2(g) + C2H6(g) → Caco3(s) + Cao(s) + CO2(g) shows an increase in entropy due to the formation of a gas as a product. Option A

In this equation, the reactants on the left-hand side consist of gases (C2H4 and H2), while the products on the right-hand side include a solid (Caco3) and a gas (CO2).

When a reaction involves a change from gaseous to solid or liquid states, there is typically a decrease in entropy because the particles become more ordered and constrained in the solid or liquid phase.

Conversely, when a reaction involves the formation of gases, there is generally an increase in entropy because gases have higher degrees of molecular motion and greater freedom of movement compared to solids or liquids.

In the given equation, the reactants include three gaseous compounds (C2H4, H2, and C2H6), and one of the products is a gas (CO2). Therefore, the overall entropy of the system increases during this reaction.

The equation Fe(s) + S(s) → FeS(s) does not show an increase in entropy. Both the reactants (Fe and S) and the product (FeS) are solids. Since solids have lower entropy compared to gases or liquids, the entropy of the system does not increase in this reaction. Option A

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In an enzyme-catalyzed reaction, the rate-limiting step is typically the binding of substrate to the active site of the enzyme. K2 and k-2 represent the rate constants for the formation and breakdown of the enzyme-substrate complex, respectively. These rate constants are important in determining the overall rate of the reaction, but they do not determine the initial velocity, which is largely determined by k1.

Enzyme Catalyzed is the increase in the rate of a process by a biomolecule. Such biomolecules are called enzymes, and most enzymes are proteins, while the processes they accelerate are mostly chemical reactions in the body.

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Answer:

true

Explanation:

because an organism have many roles in food web

Answer:

denser than freshwater due to the sodium chloride dissolved in it.

Explanation:

t. This means that a specific volume of salt water is heaver than the same volume of freshwater. ... While colder water is denser, when water freezes into ice, it becomes less dense and floats on the surface

Collision theory. Molecules must collide with each other for the reaction to occur. The orientation also plays an important role since molecules must collide in a specific orientation. Also, molecules must have enough energy to react.

Surface area. When the area of a solid is increased, the rate of the reaction increases. This is because more particles are exposed to react.

Answer:

52.068 amu

Explanation:

To calculate the average atomic mass of chromium, you have to first multiply the abundance of an isotope with its mass.

49.946 × 0.0435 = 2.173

51.941 × 0.838 = 43.527

52.941 × 0.0235 = 1.244

53.939 × 0.095 = 5.124

Next, add up all of the values, and you will get the average atomic mass.

2.173 + 45.527 + 1.244 + 5.124 = 52.068 amu

Firstly we will convert the mass of the reactants to moles or reactants:

The easiest way to determine which is the limiting reagent is to determine the moles per co-efficient ratio.

Answer: The one with the lowest value is the limiting reactant. CaCl2 has the lowest value and is the limiting reactant.

Answer: weight helps gravity

Explanation

for example, when you outside with the wind blowing, your weight dont let you get carried away.    

Answer:

Magenta.

Explanation:

Color absorption is a process that occurs when a light wave strikes an object. When a light wave strikes an object it either absorbs color or transmits the color, or reflects the color. When a light wave strikes a green object, it absorbs a magenta color.

Magenta is a combination of red and blue light, therefore, the colors that the green object will absorb is red. blue, or magenta light.

Answer:

A 7.59 mol Ne

Explanation:

The number of moles of Ne in a sample of 4.57 x 10²⁴ atoms of neon (Ne) are 7.59 mol of Ne. Hence Option (A) is the correct option. It can be solved with the help of Mole concept.

The mole, symbol mol, is the SI base unit of amount of substance.

The quantity amount of substance is a measure of how many elementary entities of a given substance are in an object or sample.

n = given number / Avogadro's number

  = 4.57 x 10²⁴ / 6.022 x 10²³

  = 7.59 mol of Ne

Therefore, The number of moles of Ne in a sample of 4.57 x 10²⁴ atoms of neon (Ne) are 7.59 mol of Ne. Hence Option (A) is the correct option. It can be solved with the help of Mole concept.

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Answer:

B.

Explanation:

Hope this helps.

In order to promote a healthy environment, the piece of trash should be matched to the best method of disposing them as follows:

Compost rotting can be defined as a chemical change that involves the mixture of decayed organic substances such as dead leaves, vegetables, manure, or egg shells, that are added to the soil, in order to fertilize it.

Recycling can be defined as a waste (trash) management technique that involves the process of converting a raw material that has reached the end of its life cycle into new and reusable items.

In order to promote a healthy environment, the piece of trash should be matched to the best method of disposing them as follows:

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Answer:

Recycling - television set, plastic milk bottle, and soup can.

Compost - egg shell, vegetable peel, and grass clippings.

Explanation:

Plato

Answer:

D) Condensation of a gas into a solid.

Explanation:

An endothermic process is a process that absorbs heat from the surroundings.

A) Boiling a liquid.

This gives off heat to the surroundings. An exothermic process.

B) Freezing a solid.

In this process, the water releases heat to the surroundings, so it is an exothermic process

C) Condensation of a gas into a liquid.

As water vapor condenses into liquid, it loses energy in the form of heat. Therefore, this process is exothermic.

D) Condensation of a gas into a solid.

This process absorbs heat from the surrounding, hence it is an endothermic proccess.

Boiling a liquid is an endothermic process.

An endothermic reaction is a type of chemical reaction in which energy is consumed in the form of heat, so the product obtained has more energy than the reactants.

Boiling a liquid is an endothermic process, since the liquid needs heat to transition into a gaseous one.

The endothermic reaction involves an increase in enthalpy, which refers to a magnitude whose variation reveals the level of energy that a thermodynamic system exchanges with the environment.

On the other hand, when the reaction involves releasing energy in the form of heat or light, the process is called an exothermic reaction.

When a matter in a liquid state turns into a solid state (that is, it solidifies) and when a matter in a gaseous state turns into a liquid (it condenses), an exothermic reaction occurs.

Therefore, we can conclude that boiling a liquid is an endothermic process where energy is absorbed in the form of heat.

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Acetic acid has a 4.76 pH value. In order to create a buffer with a pH of 5.20, it is necessary to have a ratio of 2.75 of acetic acid and acetate ions.

The amount of a substance's solute in a specific amount of solution is how concentrated it is. Molarity, or the number of moles of solute in one liter of solution, is a common unit of measurement for concentrations.

Since the Great Salt Lake has a high concentration of salt, there aren't many fish there. A high concentration of a material in a solution simply implies that there is a lot of it there in relation to the volume. It signifies you pay attention properly to state that you have high focus skills.

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Answer:

Explanation:

The balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) is:

HCl(aq) + NaOH(s) → NaCl(aq) + H2O(l)

From the balanced equation, we can see that one mole of hydrochloric acid reacts with one mole of sodium hydroxide to produce one mole of sodium chloride and one mole of water.

First, we need to determine which reactant is limiting, i.e., which reactant is completely consumed in the reaction. To do this, we need to compare the number of moles of each reactant, using their respective molar masses:

Molar mass of HCl = 1.008 g/mol (atomic weight of hydrogen) + 35.45 g/mol (atomic weight of chlorine) = 36.46 g/mol

Molar mass of NaOH = 22.99 g/mol (atomic weight of sodium) + 16.00 g/mol (atomic weight of oxygen) + 1.008 g/mol (atomic weight of hydrogen) = 39.99 g/mol

Number of moles of HCl = mass / molar mass = 30.0 g / 36.46 g/mol ≈ 0.823 mol

Number of moles of NaOH = mass / molar mass = 14.3 g / 39.99 g/mol ≈ 0.358 mol

Since the stoichiometric ratio between HCl and NaOH is 1:1, NaOH is the limiting reactant because it has fewer moles than HCl.

Therefore, we can calculate the maximum mass of NaCl that can be produced by the reaction using the number of moles of NaOH:

Number of moles of NaCl produced = number of moles of NaOH used in the reaction = 0.358 mol

Mass of NaCl produced = number of moles of NaCl produced x molar mass of NaCl

Molar mass of NaCl = 22.99 g/mol (atomic weight of sodium) + 35.45 g/mol (atomic weight of chlorine) = 58.44 g/mol

Mass of NaCl produced = 0.358 mol x 58.44 g/mol = 20.9 g

Therefore, the maximum mass of NaCl that can be produced by the reaction is approximately 20.9 g

Answer:primary consumer

Explanation:

i got it right

Answer:

Magnetic force

Explanation:

Answer:

1.9472857e+56

Explanation: Ask Google

the poly atomic molecule is H2

The substance begins to boil at 2750⁰C, the substance begins to melt at 1500⁰C, the temperature at which the substance is both a liquid and a gas at 2750⁰C, temperature is the substance both a solid and a liquid​ at 1500⁰C.

Heating curves are the graphical correlations between heat added to a substance. When viewed from a cooling perspective, ie. loss of heat, it is the cooling curve.

The gradient of the cooling curve is related to the heat capacity, the thermal conductivity of the substance, and the external temperature. The more heat is required to change the temperature of the substance, the slower it cools, so the smaller the gradient of the curve. The higher the thermal conductivity, the faster heat is transferred, so the faster the substance cools.

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Answer: The value of \(\Delta G\) is -602.96 kJ/mol at 292 k for a reaction in which \(\Delta H\) = 92 kj/mol and \(\Delta S\) = 2.38 kj/mol K.

Explanation:

Given: Temperature = 292 K

\(\Delta H\) = 92 kJ/mol

\(\Delta S\) = 2.38 kJ/mol

Formula used to calculate the value of \(\Delta G\) is as follows.

\(\Delta G = \Delta H - T\Delta S\)

Substitute the values into above formula as follows.

\(\Delta G = \Delta H - T\Delta S\\= 92 kJ/mol - (292 K \times 2.38 kJ/mol K)\\= 92 kJ/mol - 694.96 kJ/mol\\= - 602.96 kJ/mol\)

Thus, we can conclude that the value of \(\Delta G\) is -602.96 kJ/mol at 292 k for a reaction in which \(\Delta H\) = 92 kj/mol and \(\Delta S\) = 2.38 kj/mol K.