How many moles of iron are needed to produce 8.2mole of silver? (round to the nearest tenth)

Fe + 2AgNO3 à Fe(NO3)2 + 2Ag

Answer:

Your answer ,it is not equal to it

When the body's supply of energy is high, cells might engage in various biochemical activities, such as anabolic processes, glycogenesis, and lipogenesis.

Anabolic processes involve building complex molecules from simpler ones, which requires energy.

Glycogenesis is the synthesis of glycogen from glucose, and lipogenesis is the production of fats from excess glucose and fatty acids.

If cells do not have access to glucose in the blood, they may change their metabolism by increasing the breakdown of glycogen to release glucose (glycogenolysis) and breaking down fats to produce energy (lipolysis).

Additionally, they may switch to using alternative energy sources such as ketone bodies through ketogenesis, which occurs when the body metabolizes fats instead of glucose.

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A decomposition reaction occurs when one reactant breaks down into two or more products. It can be represented by the general equation: AB → A + B. In this equation, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction.

RbCI = rubidium chloride

Answer:

I believe they can if it's a small town/village

Explanation:

The true statement is: Dalton’s theory recognized that all matter is composed of atoms.

1. The first comprehensive attempt to characterise all matter in terms of atoms and their properties was Dalton's atomic theory.

2. The laws of conservation of mass and constant composition served as the foundation for Dalton's theory.

3. In the first section of his thesis, he claims that all matter is composed of indivisible atoms.

According to the second component of the theory, the mass and characteristics of every atom in a specific element are the same.

Compounds, according to the third section, are combinations of two or more different kinds of atoms.

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Answer:

:)

Explanation:

Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds.

Answer:

H2O

Explanation:

Thats the formula :P

Depending on the number of astronauts, the amount of oxygen gas that needs to be generated for a 12-day mission would be the calculated volume (e.g., 7638 liters for one astronaut) multiplied by the number of astronauts.

To determine the amount of oxygen (O2) that needs to be generated for a 12-day mission, considering each astronaut consumes 0.91 kg of O2 per day, we can follow these steps:

Calculate the total oxygen consumption per astronaut for the entire mission:

Oxygen consumption per day per astronaut = 0.91 kg

Total oxygen consumption per astronaut for 12 days = (0.91 kg/day) * 12 days = 10.92 kg

Convert the mass of oxygen consumed to moles:

To convert from mass (kg) to moles, we need to use the molar mass of oxygen (O2), which is approximately 32 g/mol.

Moles of oxygen consumed per astronaut for 12 days = (10.92 kg) / (32 g/mol) = 341.25 mol

Use the ideal gas law to calculate the volume of oxygen gas (O2) at standard temperature and pressure (STP):

At STP, 1 mole of any gas occupies 22.4 liters.

Volume of oxygen gas per astronaut for 12 days = (341.25 mol) * (22.4 L/mol) = 7638 liters

Determine the total volume of oxygen gas needed for the entire mission:

If we assume there is only one astronaut, then the total volume of oxygen gas needed for the 12-day mission would also be 7638 liters.

However, if there are multiple astronauts, we need to multiply the volume by the number of astronauts. For example, if there are two astronauts:

Total volume of oxygen gas needed for the 12-day mission (with 2 astronauts) = 7638 liters * 2 = 15,276 liters.

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Answer: A. H 0  μ1 = μ2 = μ3

Ha  μ1 ≠ 2μ ≠ μ3

2. Test Statistics is 95%

3. Critical F-Value is 3.76.

4. P-Value is 2.32.

5. Conclusion  Reject the null hypothesis.

6. Type of vehicle does effect the amount of green house gas emissions.

The correct order of the steps of a hypothesis test is given below.

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the critical value F-test for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

All steps are performed in the given sequence to test a hypothesis.

The null hypothesis is rejected or accepted on the basis of level of significance. When the p-value is greater than level of significance we fail to reject the null hypothesis and null hypothesis is then accepted. It is not necessary that all null hypothesis will be rejected at 95% level of significance. To determine the criteria for accepting or rejecting a null hypothesis we should also consider p-value.

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Explanation:

Answer:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles N2, or 28.0134 grams.

Explanation:

:)

The substance that inhibits the absorption of iron and zinc, found in high-fiber foods, is called phytic acid (also known as inositol hexaphosphate or IP6). Phytic acid is a natural compound found in plant-based foods, especially in whole grains, legumes, and nuts.

Phytic acid can bind to minerals such as iron, zinc, calcium, and magnesium, forming complexes that are not easily absorbed by the body. This can reduce the bioavailability of these minerals and may lead to mineral deficiencies in individuals who rely heavily on high-fiber plant-based diets.

Therefore, if you consume a diet high in fiber, it's important to ensure that you're also getting enough iron and zinc from other sources. You can increase the absorption of iron by consuming vitamin C-rich foods with your meals, while zinc absorption can be improved by consuming animal-based protein sources such as meat, poultry, and seafood.

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Answer:

The concentration of the resulting solution is 0.25 or one quarter of the standard solution

Explanation:

Whereby the molar concentration of the standard solution is P molar per liter, we have

25 ml of the standard solution contains

25/1000×P moles of the standard solution such that the resultant solution has a volume of 25 + 75 = 100 ml contains 0.025 P moles of the standard solution

The concentration of a solution is the number of moles contained per liter, which gives

100 ml contains 0.025 P moles

1 liter = 1000 ml will contain 1000/100 × 0.025 = 0.25 P moles of the stanard solution

Therefore, the concentration of the resulting solution is 0.25 or one quarter of the standard solution.

Answer:

–2400 N

Explanation:

This is a physics question. However, the answer to the question is given below.

We'll begin by converting 36 Km/hr to m/s. This can be obtained as follow:

3.6 Km/hr = 1 m/s

Therefore,

36 Km/hr = 36 Km/hr × 1 m/s / 3.6 km/hr

36 Km/hr = 10 m/s

Thus, 36 Km/hr is equivalent 10 m/s.

Next, we shall determine the acceleration of the car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 5 s

Acceleration (a) =?

a = (v – u) / t

a = (0 – 10) / 5

a = – 10 / 5

a = –2 m/s²

Finally, we shall determine the force required to stop the car. This can be obtained as follow:

Mass (m) = 1200 Kg

Acceleration (a) = –2 m/s²

Force (F) =?

F = ma

F = 1200 × –2

F = –2400 N

NOTE: The negative sign indicate that the force is in opposite direction to the motion of the car.

Answer:

The answer should be that a constant pressure is applied to both cylinders and they are balanced chemical equations for the reaction between nitrogen oxygen.

Explanation:

When an acid such as hydrochloric acid (HCl) reacts with a metal like zinc (Zn), the gas produced is hydrogen gas (H₂).

When hydrochloric acid (HCl) reacts with zinc (Zn), something interesting happens. The acid gives away its hydrogen atoms (H⁺) to the zinc. At the same time, the zinc gives away some of its electrons. As a result, hydrogen gas (H₂) is produced. The gas forms little bubbles that you might see during the reaction. The remaining zinc combines with the chlorine atoms (Cl⁻) from the acid to form zinc chloride (ZnCl₂). So, to sum it up, when acid (like HCl) and metal (like zinc) react, they create hydrogen gas and a compound called zinc chloride. The hydrogen gas bubbles out, and the zinc chloride dissolves in the remaining acid.

A single displacement reaction, also known as a metal-acid reaction, occurs when hydrochloric acid (HCl) and zinc (Zn) are in contact. This reaction results in the creation of zinc chloride (ZnCl₂) and hydrogen gas (H₂) as the zinc metal displaces the hydrogen in the hydrochloric acid. While the acid's hydrogen ions lose electrons and undergo oxidation, the zinc atoms acquire electrons and undergo reduction. It is a redox (reduction-oxidation) reaction because it includes both oxidation and reduction reactions.

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It is true that a molecule with the given formula  \(C_{6} H_{12}\)  could be a saturated hydrocarbon.

Hydrocarbons or \(C_{6} H_{12}\) is defined as a single bond between the carbon atoms which can be said as saturated hydrocarbons. They belong to the most basic group of hydrocarbons. Because each carbon atom is linked to as many hydrogen atoms as possible, they are referred to as saturated.

Water cannot dissolve in saturated hydrocarbons as they are less dense than water with increasing carbon chain or ring size, melting and boiling points rise. The characteristics of saturated hydrocarbons chemically is combustion and halogenation which are two significant reactions. Alkanes or saturated hydrocarbons have the general formula \(C_{n} H_{2n+2}\) where \(n\) is how many carbon atoms there are in an alkane molecule.

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Answer: I think the answer is 9.60s

Explanation: Hope it helps :)

The concentration of the KBr solution is 0.168 M.

What is molarity?

The quantity of a substance in a given volume of solution is known as its molarity (M). The number of moles of a solute each liter of a solution is known as molarity. The molar concentration of a solution is another term for molarity.

Explanation:

M1V1 = M2V2,

where M1 is the initial concentration,

V1 is the initial volume,

M2 is the concentration,

V2 is the total final volume.

Have to find the initial and final volume of the solution,

V1=100/1000=0.1

V2=500/1000=0.5

By rearranging the above equation, we get

M2=M1V1/V2

=0.840 x 0.1/0.5=0.168 M.

Therefore, the concentration of the KBr solution is 0.168 M.

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The correct option is D, The element with the electron configuration 1s22s22p63s23p2 is sulfur (S).

Electron configuration is the distribution of electrons among the various atomic orbitals of an atom or molecule. The electronic structure of atoms is determined by the number of electrons they possess and the arrangement of those electrons around the nucleus. The electrons are arranged in specific energy levels, or shells, around the nucleus, with each shell having a specific number of subshells, or orbitals. The orbitals are further divided into regions known as electron clouds, where the probability of finding an electron is high.

Electron configuration is typically expressed using a shorthand notation that lists the number of electrons in each orbital. The notation starts with the lowest-energy orbital and proceeds to higher-energy orbitals, with each orbital designation followed by a superscript indicating the number of electrons in that orbital. For example, the electron configuration of carbon is 1s² 2s² 2p², indicating that there are two electrons in the 1s orbital, two in the 2s orbital, and two in the 2p orbital.

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Complete Question:

what element has the electron configuration 1s22s22p63s23p2? what element has the electron configuration 1s22s22p63s23p2?

A). oxygen

B). silicon

C). carbon

D). sulfur

E). iron

EXPLANATION:

Ethanol is commonly known as ethyl alcohol, pure alcohol, grain alcohol, and most importantly it is known alcohol present in alcoholic beverages.

The chemical formula of ethanol is written below as

Ethanol is very soluble in water and also, it has many functions due to the presence of hydroxyl as the functional group.

The next thing is to draw the structure of ethanol

Ethanol act as a fuel because the ethanol molecule contains oxygen, it allows the engine to more completely combust the fuel.

Answer:

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

Explanation:

google

Answer:

PLEASE MARK ME AS THE BRAINLIEST

Explanation:

According to the 2n2 rule, the maximum number of electrons in the third period = 2 x (3)2 = 18. But, the last shell cannot accommodate more than 8 electrons so, the number of electrons in third period is 8. Hence, the number of elements is also 8.

Answer:

Here boron-11 means the name of the element is boron and the mass number is 11

Explanation:

Answer:

\(\large \boxed{28 \, \% }\)

Explanation:

magnesium  + nitrogen ⟶ Product

      13 g                5 g

Mass of product = 13 g + 5 g = 18 g

The product contains 5 g of nitrogen .

\(\text{Percent N} = \dfrac{\text{5 g}}{\text{18 g}} \times \, 100\% = \mathbf{28 \, \%}\\\text{The percent by mass of nitrogen is $\large \boxed{\mathbf{28 \, \% }}$}\)

According to the graph, only the reactant A was present at the beginning of the reaction.

The graph shows the concentration for the reactant A and the product that is A2. In this graph, the concentration is displayed on the vertical axis, while the horizontal axis shows the time.

In general terms, it can be observed that at the beginning only the reactant A is present, but as the reaction occurs the concentration of this reactant decreases, while the concentration of the product A2 increases.

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A normal adult with 5 L of blood has approximately 60 billion white blood cells. The white blood cell concentration in normal blood is approximately 12,000 cells/mm3 of blood.

To find out how many white blood cells a normal adult with 5 L of blood has, we need to convert the volume of blood from liters to cubic millimeters and then multiply it by the concentration of white blood cells.

1 L = 1,000,000 mm3
5 L = 5,000,000 mm3

Next, we multiply the volume of blood in cubic millimeters by the concentration of white blood cells:
5,000,000 mm3 × 12,000 cells/mm3 = 60,000,000,000 cells

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The d3 complex is a group of transition metal ions that have three d-electrons. The electronic configuration of this complex is (t2g)3, where t2g represents three orbitals of d sub-levels.

All three electrons are located in these three orbitals. Based on this electronic configuration, there are three possible electronic transitions that can occur in the spectrum of a d3 complex. These are shown in the diagram below: Image credits: www.chemistrysteps.comThe approximate spectrum of d3 complex is shown below: Image credits: dric.uc.pt.

Therefore, the three electronic transitions in the spectrum of a d3 complex are as follows:1. Low-energy transition: This transition is from the ground state, where all three electrons are located in t2g orbitals, to the excited state, where one electron moves from the t2g orbitals to the eg orbitals.2. Mid-energy transition:

This transition is from the ground state to the excited state, where two electrons move from the t2g orbitals to the eg orbitals.3. High-energy transition: This transition is from the ground state to the excited state, where all three electrons move from the t2g orbitals to the eg orbitals. T he approximate spectrum of d3 complex consists of three bands corresponding to these three electronic transitions.

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Answer:

4:6    and  4:4

Explanation:

double the right side so double the left side to get these ratios

The quickest production of H₂ gas can be achieved by carrying out the reaction at a temperature near the boiling point of water which is 100° Celsius.

For the quickest production of H₂ gas, the reaction should be done at a higher temperature. This is because as temperature increases, the kinetic energy of the particles increases, leading to higher reaction rate. As the reaction rate increases, it leads to an increased rate of H₂ gas production. Therefore, the reaction should be done at a higher temperature to achieve quicker production of H₂ gas which is the boiling point of water.

The rate at which reactants change into products is known as the rate of reaction or reaction rate. It goes without saying that the rate at which chemical reactions take place varies greatly. While certain chemical reactions occur almost instantly, others typically take time to achieve their final equilibrium.

For instance, because it happens quickly, wood burning has a high reaction rate, whereas iron rusting has a low reaction rate because it happens gradually.

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