a mixture of 10.325 g of feo and 5.734 g of aluminum metal is placed in a crucible and heated in a high temperature oven, where the following reaction takes place: 3feo(s) 2al(l) → 3fe(l) al2o3(s) after the reaction has gone to completion what and how much (in grams) will be left in the crucible?

Answer: Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.

Explanation: I hope that was helpful!

The air pressure at the top of Mount Everest in atmospheres is equal to 0.2618 atm.

In Science, pressure can be defined as a measure of the force exerted per unit area of an object or physical body. This ultimately implies that, pressure is usually measured in Newton per meter square and calculated by using this formula:

P = F/A

Where:

Generally speaking, air pressure can be measured in other units such as the following:

In order to convert the value of pressure in millimeters of mercury (mm Hg) to atmosphere, we would divide by 760 as follows:

Air pressure = 199/760

Air pressure = 0.2618 atm.

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Answer: 0.261842

Explanation:

The rules of base pairing (or nucleotide pairing) are: A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T) C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)

The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together.

In the periodic table, on moving downward, there has been an increase in the total electrons. Thus, option C is correct.

The periodic table has been the arrangement of elements in the increasing order of the atomic number, and similarity in the chemical properties.

The fluorine has been the most electronegative element in the periodic table. Fluorine and Chlorine has been nonmetals of group 17. The valence of electrons in the period have been equal.

The total electrons in  the table increases with increase in atomic number.

The ionic charge has been the charge possessed by the element in the ionic form. The elements in the same group has been composed of similar equivalent charge.

Thus, in the periodic table, on moving downward there has been an increase in the total electrons. Thus, option C is correct.

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You think we can answer this question without seeing the cubes you're mentioning?

Answer:

1,2,and 3

1

Explanation:

right on edge

Within the yeast ATP synthase complex, the F1 portion is most directly involved with ATP synthesis. More specifically, the catalytic site of the F1 portion, known as the F1Fo-ATPase or F1 head, is directly responsible for ATP synthesis.

The yeast ATP synthase complex consists of two main portions: the F1 portion and the Fo portion. The F1 portion is located on the matrix side of the mitochondrial inner membrane and is responsible for ATP synthesis. It consists of five subunits (α3β3γδε) and contains the catalytic site for ATP synthesis. The catalytic site is found within the F1Fo-ATPase or F1 head, which is directly responsible for the synthesis of ATP.

The Fo portion, on the other hand, spans the mitochondrial inner membrane and acts as a proton channel, allowing the flow of protons across the membrane. This proton flow is harnessed by the F1 portion to drive the synthesis of ATP. However, in terms of direct involvement in ATP synthesis, it is the F1 portion and specifically the catalytic site within the F1 head that carries out the actual synthesis of ATP molecules.

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Answer:

C. To work on the mechanics of a pitchers throw
or... A. To design a stadium with the maximum number of seats

Explanation:

Positive ions grow in magnitude from left to right, while negative ions grow in magnitude from right to left.

Any atom or collection of atoms with one or more positive or negative electrical charges is known as an ion.

The periodic table shows that there are more valence electrons on the right than the left. The maximum amount of ionic charge that an element can hold fluctuates as the number of valence electrons rises.

Second, metals on the periodic table's left side primarily produce positively charged ions. These ions get stronger over time, increasing in size.

The negative charges on the ions that non metals on the right side of the periodic table produce have a diminishing magnitude over time.

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Answer: Atoms are single neutral particles, and an ion is a positively or negatively charged particle.

Explanation:

A firework specialist would be required to be knowledgeable in inorganic chemistry, according to the statement.

In contrast to charcoal, which is a manmade product made from wood, coal is a naturally occurring mineral that develops over the course of millions of years. Even though coal in its natural condition is never used by itself in a grill or smoker, it is frequently added onto charcoal briquettes to boost their energy density.

As an acute pro government treatment, it is now most frequently used in healthcare setting to treat drug overdoses. Other advantages of activated charcoal are claimed to include less wind and flatulence, decreased cholesterol levels, and enhanced renal function.

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Answer: a) Table Salt

good luck

Answer:

In a metallic substance, electrons are shared among all of the metal atoms in the sample, forming a "sea" of electrons that surrounds the metal ions. This electron sea is responsible for many of the unique properties of metals, including their high conductivity, malleability, and ductility.

The electron sea in a metallic substance allows the metal ions to slide past one another easily, making it easier to deform the metal without breaking it. In contrast, ionic and covalent compounds are held together by strong chemical bonds, which makes it more difficult to deform these materials without breaking the bonds. This is why metals are generally more malleable and ductile than ionic and covalent compounds.

The conjugate base of HSO³⁻ is SO₃²⁻. This is because when HSO₃⁻ loses a proton (H⁺), it forms the negatively charged ion SO32−. Therefore, the chemical formula for the conjugate base of HSO₃⁻ is SO₃²⁻.

The species that remains after an acid donates a proton (H⁺) is called conjugate base and it is formed by removing proton from the acid molecule. For example, conjugate base of acid HCl (hydrochloric acid) is Cl⁻ (chloride ion).

So, the conjugate base of HSO₃⁻ (hydrogen sulfite ion) is formed when it loses a proton (H+). The resulting chemical formula for the conjugate base is SO₃²− (sulfite ion).

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Answer:

Good electrical conductors and heat conductors.

Malleable - can be beaten into thin sheets.

Ductile - can be stretched into wire.

Possess - metallic luster.

Opaque - as thin sheet.

Solid - at room temperature.

Explanation:

The given statements I (For a strong acid-strong base titration, the pH at the equivalence point is equal to 7) and II (For a weak acid-strong base titration, the pH at the equivalence point is greater than 7) are true, while statement III (dding a common-ion to the solution will increase the solubility of the insoluble salt) is false.

In a strong acid-strong base titration, statement I is true. When a strong acid reacts with a strong base, the products are a salt and water, leading to a neutral solution with a pH of 7 at the equivalence point. This occurs because the strong acid and strong base completely dissociate, and their respective ions combine to form water.

Statement II is also true. In a weak acid-strong base titration, the pH at the equivalence point is greater than 7. This is because a weak acid does not completely dissociate in water, leaving a significant amount of conjugate base in the solution when it reacts with the strong base. The conjugate base from the weak acid can accept a proton from water, resulting in an increase in hydroxide ions (OH-) and a pH above 7 at the equivalence point.

However, statement III is false. Adding a common-ion to a solution containing an insoluble salt will decrease the solubility of the salt, not increase it. This occurs due to the common-ion effect, which states that the presence of a common ion suppresses the ionization of a weak electrolyte, causing the equilibrium to shift towards the formation of the insoluble salt and leading to a decrease in solubility.

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Answer:

It 70 meters North

Explanation: You count from where she started.

Answer:

covalent bonds please mark me brainliest

A switch connects with multiple devices, such as, computers, wireless access points, printers, and servers.

For example, this quote states that "Switches are key building blocks for any network. They connect multiple devices, such as computers, wireless access points, printers, and servers; on the same network within a building or campus. A switch enables connected devices to share information and talk to each other."

The volume (in milliliters) of the 2.00 M NaOH solution that can be produced from the reaction is 955 mL

First, we shall determine the mole of 44.00 grams of Na that reacted. Details below:

Mole = mass / molar mass

Mole of Na = 44 / 22.99

Mole of Na = 1.91 moles

Next, we shall determine the mole of NaOH obtained from the reaction. Details below:

2Na + 2H₂O -> 2NaOH+ H₂

From the balanced equation above,

2 moles of Na reacted to produced 2 moles of NaOH

Therefore,

1.91 moles of Na will also react to produce 1.91 moles of NaOH

Finally, we shall determine the volume of the 2.00 M NaOH produced. Details below:

Volume = mole / molarity

Volume of NaOH = 1.91 / 2

Volume of NaOH = 0.955 L

Multiply by 1000 to express in milliliter

Volume of NaOH = 0.955 × 1000

Volume of NaOH = 955 mL

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Answer: 144 inches

Explanation: 4 yards is 12 feet, so multiply 12 inches by 12 feet and you get 144 inches

Answer:

The principles of stoichiometry are based upon the law of conservation of mass. Matter can neither be created nor destroyed, so the mass of every element present in the product(s) of a chemical reaction must be equal to the mass of each and every element present in the reactant(s) in a balanced equation.

Answer:

The spectator ions are CN- and Li+

Explanation:

Spectator ions are ions in a chemical equation that don't participate in the reaction. To identify these ions you have to look for which ions are on both sides of the chemical equation.

In this chemical equation Li+ and CN- are on both sides of the equation making them spectator ions.

Answer:

They grow slowly over time, they are made up of multiple organisms.

Explanation:

One polyp is one individual. A Coral is made up of several polyps. Each polyp is less than 1 centimeters but a coral is made of many polyp so the coral itself cant be 1 centimeters across.

The number of moles of bromine trifluoride needed to produce 23.2 L of fluorine gas according to the reaction would be 0.339 moles.

The balanced equation for the reaction is:

BrF3 → Br + 3F2

From the equation, we can see that 1 mole of BrF3 produces 3 moles of F2. Therefore, to calculate the number of moles of BrF3 needed to produce 23.2 L of F2 at 0°C and 1 atm, we need to use the ideal gas law:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

We can rearrange the ideal gas law to solve for n:

n = PV/RT

At 0°C (273 K) and 1 atm, the value of R is 0.08206 L·atm/mol·K. Substituting the values given, we get:

n = (1 atm) × (23.2 L) / (0.08206 L·atm/mol·K × 273 K)

n = 1.017 mol F2

Since 1 mole of BrF3 produces 3 moles of F2, we need 1/3 as many moles of BrF3:

n(BrF3) = 1.017 mol F2 × (1 mol BrF3 / 3 mol F2)

n(BrF3) = 0.339 mol BrF3

Therefore, 0.339 moles of BrF3 are needed to produce 23.2 L of F2 at 0°C and 1 atm.

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The atomic weight of the element is approximately 35.4535 amu.

The average mass of an element in relation to all of its isotopes and their relative abundances is known as its atomic weight. Atomic mass units, sometimes referred to as Daltons, are used to measure atomic weight. The same element can have different isotopes.

The atomic weight (also known as atomic mass) of an element is the weighted average of the masses of its isotopes, taking into account their natural abundance.

To find the atomic weight of the element given in the problem, we can use the following formula:

atomic weight = (mass1 x abundance1 + mass2 x abundance2) / 100

where mass1 and mass2 are the masses of the two isotopes, and abundance1 and abundance2 are their natural abundances as percentages.

Substituting the given values, we get: The natural abundances of the two isotopes, abundance1 and abundance2, are expressed as percentages.

Inputting the values provided yields:

atomic weight = (35.0 amu x 75.5% + 36.9 amu x 24.5%) / 100

atomic weight = (2642.5 + 904.05) / 100

atomic weight = 35.4535 amu

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