if there are no reactions in the citric acid cycle that use oxygen, o2 , why does the cycle operate only in aerobic conditions?

answer

1. Neon

2. Astatine

3. oxygen

4. Arsenic

5. Silicone

6. Aluminium

7. Calcium

8. Sodium

your question was incomplete.............. you haven't mentioned any required information

Answer:

S

Explanation:

Using periodic table (see those little numbers in the upper right?  Those are electron 'shells' .... look at the bottom one)

Ca has 2     Cl has 7       Ne has 8        S  has 6 in the outermost shell

Red Litmus paper turns blue

Answer:

\( Ca(OH) _2 \)

Explanation:

In lime water \( \red{\bold {RED}} \) litmus paper turns \( \blue {\bold {BLUE}} \) because lime water is alkaline.

\(formula \: for \: lime \: water : Ca(OH) _2 \\ \)

Answer:

B.

Explanation:

Rust is a chemical change because you can not undo it. Rusting of iron is a chemical change because a new substance iron oxide is formed. The presence of oxygen and water or water vapour is essential for rusting.

Answer:

that isn't a full equation but I will assume this is = to 0

that makes x 30.95

Explanation:

Carbon = C

Water = C

Aluminum foil = E

Plastic = E

Tin = E

Silicon dioxide = C

Helium = C

Arsenic = C

Carbon dioxide = C

Sodium Chloride = C

A battery is a device that converts chemical energy into electrical energy through a process known as an electrochemical reaction.

When a battery is connected to a circuit, the electrochemical reaction causes a flow of electrons from the anode to the cathode, generating an electric current that can power a device.

The metal chosen for the anode must be capable of losing electrons easily, while the metal chosen for the cathode must be capable of accepting electrons. The choice of metals can also affect the voltage and capacity of the battery, as well as its overall efficiency.

In general, the metals used in a battery should have a large difference in their electronegativity values, which determines how easily an atom can attract electrons. Common metals used in batteries include zinc, lithium, nickel, and cadmium.

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Answer:

Explanation:

The density of a substance can be found by using the formula

From the question

mass = 54 g

volume = 20 cm³

Substitute the values into the above formula and solve for the density

That's

We have the final answer as

Hope this helps you

When a less active ingredient in a molecule can be changed with a more reactive element, we forecast that just one reaction will take place. Ca + MgCl₂ → CaCl₂ + Mg will be the chemical equation for a fair system.

An illustration of a chemical that is often expressed as a linear array with an arrow or a group of arrows separating the symbols and amounts of the reactants and those of the products.

The given equation is Ca + MgCl₂ →

It is well known that when calcium (Ca) reacts with magnesium chloride (MgCl₂), calcium chloride (CaCl₂) and magnesium are produced.

Ca + MgCl₂ → CaCl₂ + Mg.

Calcium only has atom on the photocatalyst surface and one on the product side, as can be seen. Chlorine, from the other hand, has one atom on both the reactant and product sides.

As a result, the response will be balanced.

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In a redox (reduction-oxidation) reaction, the total number of electrons lost is equal to the total number of electrons gained.

Redox reactions involve the transfer of electrons between species, where one species undergoes oxidation (loses electrons) and another species undergoes reduction (gains electrons). The concept of electron transfer is fundamental to understanding redox reactions.

During oxidation, a species loses electrons and becomes more positively charged. This process is often associated with the loss of hydrogen atoms or the addition of oxygen atoms to a molecule. The species that undergoes oxidation is called the reducing agent or reductant because it donates electrons to another species.

On the other hand, reduction involves the gain of electrons by a species, resulting in a decrease in its positive charge or an increase in its negative charge. Reduction can involve the addition of hydrogen atoms or the removal of oxygen atoms from a molecule. The species that undergoes reduction is referred to as the oxidizing agent or oxidant because it accepts electrons from another species.

For a redox reaction to be balanced, the total number of electrons lost by the reducing agent must be equal to the total number of electrons gained by the oxidizing agent. This principle is based on the conservation of charge, as electrons cannot be created or destroyed during a chemical reaction. By ensuring the equality of electron transfer, the overall charge remains balanced, and the reaction obeys the fundamental laws of chemistry.

In summary, the total number of electrons lost in a redox reaction is always equal to the total number of electrons gained to maintain charge neutrality and uphold the principles of electron transfer in chemical reactions.

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The statement is true, because, The Balmer series of lines for the hydrogen atom are found only in the visible region of the spectrum.

This is because the energy of the photons emitted during the transitions from the higher energy levels to the lower energy levels of the hydrogen atom is in the visible range of the electromagnetic spectrum.

The Balmer series of lines is a set of spectral lines in the visible region of the electromagnetic spectrum emitted by hydrogen atoms. The Balmer series is named after Johann Balmer, who first identified the spectral lines in 1885.

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The social process that Nicky used is social referencing. This is when an individual looks to others, in this case, Nicky's mother, for guidance on how to react in a new or uncertain situation.

The social process that Nicky used in the given scenario is social referencing. Social referencing is a psychological term that refers to the act of seeking emotional cues or guidance from others in ambiguous or uncertain situations. It typically occurs when an individual is faced with a new experience or environment and looks to a trusted person, such as a parent or caregiver, to understand how to react or interpret the situation.

In the example you provided, Nicky is observing their mother's facial expression and body language to gauge how they should respond to the clown. By seeking cues from their mother, Nicky is using social referencing to determine whether the clown is safe or potentially threatening. This process allows individuals, especially children, to rely on the social and emotional information provided by others to navigate unfamiliar or potentially challenging situations.

The social process that Nicky used is social referencing. This is when an individual looks to others, in this case, Nicky's mother, for guidance on how to react in a new or uncertain situation. By observing his mother's facial expression, Nicky was able to determine that the stairs may be dangerous and stopped in a safe manner. This is an important developmental milestone for infants and toddlers as they learn to navigate and understand their environment.

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Answer:

C. Hydrogen ion donor.

Explanation:

According to bronsted -lowery an acid is a substance that donates a proton (H+) to other substances.

A myelin sheath is most like the insulation around an electrical wire.

The myelin sheath is a protective layer that surrounds and insulates the axon of a nerve cell. It is composed of fatty substances called lipids, specifically phospholipids and proteins. The myelin sheath acts as an insulating layer, similar to the insulation found around electrical wires.

Just as the insulation around an electrical wire prevents the leakage of electrical current and enhances the conduction of electrical signals, the myelin sheath serves a similar function in nerve cells. It helps to increase the speed and efficiency of nerve impulse transmission along the axon.

The myelin sheath is not continuous along the entire length of the axon. Instead, it is segmented with small gaps called nodes of Ranvier. These nodes allow for saltatory conduction, where the electrical impulses jump from one node to another, significantly increasing the speed of signal transmission.

Overall, the analogy of a myelin sheath being similar to the insulation around an electrical wire helps to understand its function in protecting and facilitating efficient signal conduction in nerve cells.

In conclusion, the myelin sheath is most like the insulation around an electrical wire as it provides protection and facilitates the conduction of electrical impulses along the axon of a nerve cell.

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Answer:

The direction of prevailing winds determines which type of air mass generally moves over an area. For illustration, a west wind might bring warm wettish air from over an ocean. An east wind might bring cold dry air from over a mountain range. Which wind prevails has a big effect on the climate

Prevailing winds are the result of atmospheric rotation cells. They impact the climate of a region.

Rising and sinking air can impact the rush of a region.

Atmospheric rotation cells produce the general climate of a region.

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Answer:

Reverse Osmosis

Explanation:

Reverse osmosis systems are able to remove more contaminants than carbon, making them a popular choice for many consumers.

Answer:

no, food is not a fuel because it just give energy to do many activities but it will not provide any fuel only the dead and decaying material which berries under the soil then after a long years it becomes fossil fuel

Answer:

it's to blurry you can't see anything

Both melting wax and rain forming in a cloud involve a change of state from a solid to a liquid. These are physical changes, not chemical changes.

Both melting wax and rain forming in a cloud have the commonality of being changes of state, specifically from a solid to a liquid. They both involve a physical change rather than a chemical change. Melting wax occurs when heat is applied to solid wax, causing it to transition into a liquid state. Rain forming in a cloud happens when water vapor in the atmosphere cools and condenses back into liquid water droplets, eventually falling as rain. In both cases, the substance undergoes a phase transition without any chemical reactions taking place.

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Answer:looks spicy

Explanation:what are you asking

Answer:

Ag+ (aq) + Cl- (aq) --> AgCl (s)

Explanation:

Answer:

According to the reaction stoichiometry, 1 mole of P4010 reacts with 6 moles of H2O to produce 4 moles of H3PO4. Therefore, we can use a proportion to calculate the moles of H3PO4 produced from 8.0 moles of H2O:

$\frac{4 \text{ mol H3PO4}}{6 \text{ mol H2O}} = \frac{x \text{ mol H3PO4}}{8.0 \text{ mol H2O}}$

Solving for $x$, we get:

$x = \frac{4 \text{ mol H3PO4}}{6 \text{ mol H2O}} \times 8.0 \text{ mol H2O} = 5.3 \text{ mol H3PO4}$

Therefore, 5.3 moles of H3PO4 form from 8.0 moles of H2O.

Answer:

10.3

Explanation:

When 15.5 g of iron (Fe) is reacted with an excess of chlorine gas, it will produce approximately 44.97 g of iron(III) chloride (FeCl₃) based on the balanced equation.

To balance the equation, we need to ensure that the number of atoms of each element is equal on both sides. In the unbalanced equation:

Fe(s) + Cl₂ (g) → FeCl₃ (s)

We have one iron atom on the left side and one iron atom on the right side. So, the iron is already balanced. However, we have two chlorine atoms on the left side and three chlorine atoms on the right side. To balance the chlorine, we need to place a coefficient of 3 in front of the Cl₂ on the left side:

Fe(s) + 3Cl₂ (g) → FeCl₃ (s)

Now that the equation is balanced, we can calculate the number of grams of iron(III) chloride (FeCl₃) formed when 15.5 g of iron (Fe) reacts. From the balanced equation, we can see that the molar ratio between iron and iron(III) chloride is 1:1. Therefore, the molar mass of iron(III) chloride is relevant for this calculation.

The molar mass of Fe is approximately 55.845 g/mol, and the molar mass of FeCl₃ is approximately 162.204 g/mol (55.845 g/mol for Fe + 3 * 35.453 g/mol for Cl). We can use these molar masses to convert the mass of iron to moles and then calculate the mass of iron(III) chloride produced.

Number of moles of Fe = 15.5 g / 55.845 g/mol = 0.2776 mol

Since the molar ratio between Fe and FeCl₃ is 1:1, the number of moles of FeCl₃ produced is also 0.2776 mol.

Mass of FeCl₃ = 0.2776 mol * 162.204 g/mol = 44.97 g

Therefore, 15.5 g of iron will result in approximately 44.97 g of iron(III) chloride when reacted with an excess of chlorine gas.

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A. because he might be in trouble in a play

The number of atoms in 16.25 g of Al is calculated here. One mole or 26.98 g of Al contains 6.022 × 10²³ atoms. Thus, the atoms in 16.25 g or 0.60 mol of Al contains 3.62 × 10²³ atoms.

Any substance containing 6.022 × 10²³ atoms is called one mole of that substance. This number is called Avogadro number. Therefore, one mole of every substances contains Avogadro number of atoms. The mass of one mole of an atom is called its atomic mass.

Al is 13th element in periodic table. Its atomic mass is 26.98 g/mol. Thus, the  number of moles of 16.25 g of Al is calculated as follows:

no.of moles = given mass/atomic mass

                    = 16.25/26.98 =0.60 moles.

1 mole of Al contains 6.022 × 10²³ atoms. Thus, 0.60 moles contains 6.022 × 10²³ × 0.60 =  3.62 × 10²³ atoms.

Therefore, to calculate the number of atoms in a given number of moles of an element multiply the number of moles with Avogadro's number.

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The term for the propane and butane phases that can be liquefied is "liquefied petroleum gas" or LPG. LPG is a mixture of propane and butane gases that are compressed and cooled to a point where they transition from their gaseous state to a liquid state.

This process of converting the gases into a liquid form allows for easier storage, transportation, and handling. LPG is commonly used as a fuel for heating, cooking, and powering various appliances. It is widely available in portable cylinders and larger storage tanks. LPG has a higher energy content compared to its gaseous form, making it a convenient and efficient fuel source. The ability of propane and butane to be liquefied and stored as LPG is due to their relatively low boiling points and the pressure at which they are compressed. By controlling the temperature and pressure, the gases can be condensed into a liquid state, allowing for greater convenience and versatility in their use.

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