what does the collision theory state about the energies of atoms ions or molecules reacting to form products when they collide

Answer:

a on and off stripe pattern of black and white

Explanation:

Answer:

5.77x10^-7 m or 577 nm (nanometers)

Explanation:

The wavelength, λ, and frequency, ν, of light are described by the equation:

c = λν

where c is the speed of light.  

c = 3.0x10^8 m/s

v = 5.2x10^14

λ = c/v

λ = (3.0x10^8 m/s)/(5.2x10^14) = 5.77x10^-7 m

since 1 m = 10^9nm, we can express this as 577 nm (nanometers)

577 nm.  This is in the yellow light span of wavelengths.

The balanced half-reactions are: Oxidation half-reaction: 4Co → 4Co2+ + 8e-Reduction half-reaction: O2 + 2e- → 2O2 -

Given equation: 3O2+4Co⟶2Co2O3Using the symbol e− for an electron. The redox reaction can be broken down into two half-reactions. The reduction half-reaction is the one in which a species gains electrons and the oxidation half-reaction is the one in which a species loses electrons. The half-reactions are as follows: Reduction Half-reaction Half-reaction equation: O2 + 2e- → 2O2 -Oxidation number of oxygen in O2=0 and in O2^-= -1Charge on the left side = 0Charge on the right side = 2 x (-1) = -2Thus, 2 electrons are added to the left side to balance the charge, making the half-reaction:O2 + 2e- → 2O2 -Oxidation Half-reaction Half-reaction equation: 4Co → 4Co2+ + 8e-Oxidation number of cobalt in Co=0 and in Co2+ =+2Charge on the left side = 0Charge on the right side = 4 x (+2) + 8 x (-1) = -4Thus, 8 electrons are added to the right side to balance the charge, making the half-reaction:4Co → 4Co2+ + 8e-Thus, the balanced half-reactions are: Oxidation half-reaction: 4Co → 4Co2+ + 8e-Reduction half-reaction: O2 + 2e- → 2O2 -

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Answer:

\(\huge\boxed{\sf P = 800.8\ Ns}\)

Explanation:

Speed = v = 10.4 m/s

Mass = m = 77 kg

Momentum = P = ?

P = mv

Put the given data in the above formula.

P = (77)(10.4)

\(\rule[225]{225}{2}\)

Answer:

The atomic number is specific to an element, and the element with atomic number 7 is Nitrogen.

Atomic number is equal to the number of protons or number of electrons for aa neutral atom.

Mass number is the sum of number of neutrons and number of protons.

Atomic mass is the sum of masses of all protons and neutrons.

Protons and neutrons are located in the nucleus. Electrons are located outside the nucleus in the shells.

atomic number = Number of protons =  number of electrons = 7

Mass number =  number of neutrons + number of protons  = 14

Number of neutrons = Mass number - number of protons = 14 - 7= 7

Answer:

It contains seven protons in the nucleus.

It contains seven neutrons in the nucleus.

It contains seven electrons in orbitals around the nucleus.

Its atomic number is its number of protons.

Its atomic mass is the mass of protons and neutrons.

Explanation:

on edg 2021

Answer:

c good luck with the answer

Answer:

Platelets

Explanation:

Those are there to heal any wounds to keep the blood from leaking through. So if you ever stop bleeding, thats why

Answer:

melting is the answer any questions I'm glad to help

When solid converts to gas then heat is required to break the intermolecular forces of attraction between the particles. In this process heat increase but temperature remains the same. Therefore, the correct option is option C.

Phase transition is a process in which transition takes place from one state to another of a medium on changing temperature or pressure. Phase transition is a physical process as there is no breaking of old bond and forming of new bonds takes place.

During phase transition temperature remain constant as the extra heat that is given to the system that goes into breaking of intermolecular forces of attraction between the particles. So overall temperature remains same but heat keeps on increasing. Among all the given option, expansion is the only process in which change of state does not take place.

Therefore, the correct option is option C.

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Answer:

Hey mate here's your answer ⤵️

a mark or character used as a conventional representation of an object, function, or process, e.g. the letter or letters standing for a chemical element or a character in musical notation.

noun: letter, character, sign of written communication

Something used for or regarded as representing something else; a material object representing something,

or a character of some kind

Example:

Often something immaterial; emblem, token, or sign: "$"<< the dollar sign is a symbol used to show / means money

Hope this kinda helped

Answer: I would usually try my BEST to get help from yt videos. I recommend using yt that give the most kindergarten type speaking technique, this is really weird to say but it helps just incase you can be stressed out about the words being given by teachers in Chemistry. And I recommend writing down the notes when they explain as well. Hope this helps!

Despite being simpler to store and transport than other fossil fuels and renewables, natural gas has one significant storage drawback. Its volume is four times more than that of petrol. As a result, natural gas storage is substantially more expensive since more storage area is required.

To fully offset power expenditures with solar, a typical home need between 17 and 21 solar panels. The amount of solar panels you require is determined by a few main criteria, including your geographic location and the specs of individual panels.

Renewable energy sources provide the majority of their energy at specific times of the day. Its electrical generation does not correspond with peak demand hours.

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The right response is d. Both enzymes will have the same ΔG for catalysis.

The reaction rate and equilibrium constant have an impact on the Gibbs free energy (ΔG). No matter the source of the enzyme, such as E. coli or a thermophilic microbe, the ΔG for a reaction is the same. As a result, both enzymes will have the same ΔG for sucrose hydrolysis.

The ΔG may be written mathematically as:

ΔG = -RT ln (K)

T is the temperature, K is the equilibrium constant, and R is the gas constant..

As both enzymes have the same reaction rate (K) and temperature (T), the reaction's ΔG  value will likewise be the same.

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Answer:

D

Explanation:

Erosion is when rocks or sediments are moved around by those means mentioned.

The molecular solid naphthalene had always been the unidentified solid with such a melting point around 78 degrees Celsius.

At normal temperature as well as pressure, an ionic compound would be almost certainly a solid, even though a covalent compound could be a solid, a liquid, or even a gas.

The temperature when a solid can transform into a liquid is known as that of the melting point.

Strong intermolecular interactions have led to greater melting points for some substances, while weakly attractive molecules have lower melting points.

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Answer:

Buffer solutions are essential in regulating blood acidity because they help maintain a stable pH level in the body. The pH of blood needs to be tightly controlled within a narrow range of 7.35 to 7.45 for optimal physiological functioning. Buffers work by absorbing excess hydrogen ions (H+) or hydroxide ions (OH-) that may be introduced into the bloodstream from various metabolic reactions. For example, if the blood becomes too acidic due to an increase in H+ ions, buffer systems such as the bicarbonate-carbonic acid system can neutralize the excess H+ ions and restore the pH balance. Conversely, if the blood becomes too alkaline due to an increase in OH- ions, buffer systems can absorb the excess OH- ions and bring the pH back to normal. In this way, buffer solutions help maintain the delicate acid-base balance crucial to the proper functioning of our bodies.

The combustion reaction is the process by which a chemical substance or hydrocarbon reacts with oxygen to produce carbon dioxide and water while also releasing energy in the form of light and heat.

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One way to climb from the bottom of a flight of stairs to the top in O(n2) time is to use a brute force approach. This involves considering every possible combination of steps that can be taken at each stair and keeping track of the minimum number of steps needed to reach the top.

This can be done by recursively considering all possible steps from each stair and choosing the minimum among them. While this approach may not be the most efficient, it guarantees that the solution will be found in no more than O(n2) time.

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Because it is a stronger basic than hydroxide ion, it cannot persist in aqueous solution. Examples include ortho-diethynylbenzene dianion (C 6 H 4 (C 2) 2) and sodium hydride (NaH). A neutral base and neutral acid join together to form a bond and share an electron pair.

The three definitions of "base" used in chemistry are Arrhenius base, Bronsted base, and Lewis base. The fact that bases react with acids is acknowledged by all base definitions. Chemistry's definition of an Arrhenius base is a chemical that breaks down into hydroxide ions (OH-) in an aqueous solution. Qualities of a base. The ions in an aqueous base solution split apart to conduct electricity. Its pH level is higher than 7. As they interact with acids, salts are created.

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Answer:

If you mean NaCl is table salt than true

but if you mean NaC1 than false

Explanation:

Answer:

A

Explanation:

The actual volume of water measured out is 10.012 mL.

To determine the actual volume of water, we can use the density formula: density = mass/volume.

Rearranging the formula to solve for volume, we get: volume = mass/density.

Plugging in the given values, we get:

volume = 9.990 g / 0.9978 g/mL = 10.012 mL.

Therefore, the actual volume measured out is slightly greater than the nominal volume of 10 mL, likely due to the meniscus formed by the water at the top of the pipet. This highlights the importance of proper measurement techniques and accounting for sources of error in experimental measurements.

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Answer:

Magnesium

Explanation:

Hope this helps!

Answer: Metal atoms lose the electron/ electrons in their highest energy level and become positively charged ions.

Answer:

Cations

Explanation:

Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. The electrostatic attraction between the positives and negatives brings the particles together and creates an ionic compound, such as sodium chloride.

Key Terms:

➡An anion can be defined as an atom or molecule that is negatively charged. ➡A cation can be defined as an atom or molecule that is positively charged. ➡They have an opposite electrical charge, therefore they get attracted to each other.

Among the compounds mentioned, CH₂ (methylene) has the shortest carbon-carbon bond(s). This is due to the presence of a double bond, which results in a shorter and stronger bond compared to single bonds in other compounds.

The length and strength of a carbon-carbon bond depend on the nature and type of bonding between the carbon atoms. In the case of CH₂, it contains a double bond between the carbon atoms. A double bond consists of one σ bond and one \(\pi\) bond. The presence of the \(\pi\) bond in addition to the σ bond makes the carbon-carbon bond in CH₂ shorter and stronger compared to a single bond.

In compounds like CH₃CH₃ (ethane) or CH₃CH₂CH₃ (propane), the carbon atoms are connected by single bonds. Single bonds are formed by the overlap of one σ orbital from each carbon atom. Since there are no additional \(\pi\) bonds, the carbon-carbon bonds in these compounds are longer and weaker compared to the carbon-carbon double bond in CH₂.

Therefore, among the compounds mentioned, CH₂ has the shortest carbon-carbon bond(s) due to the presence of a double bond, which provides a stronger and shorter bond compared to the single bonds in other compounds.

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The number of moles of calcium chloride ( CaCl₂) are contained in the given sample is 0.045 moles.

Given that :

The mass of the calcium chloride, CaCl₂ = 5 g

The molar mass of the calcium chloride, CaCl₂ = 110.98 g /mol

The number of moles can be calculated by the formula given below :

The number of moles = mass / molar mass

where,

Mass = 5 g

Molar mass = 119.98 g/mol

The number of moles = 5 g / 110.98 g /mol

The number of moles = 0.045 moles.

The moles of the calcium chloride ,  CaCl₂ is 0.045 mol.

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Once both temperatures are identical, there is no overall transfer of heat since the quantity of heat transmitted form one component to the next is equal to the amount.

There are numerous people or things if you state there is any quantity of people or things. Any quantity of money is readily available to me at any time.You can count the volume of air in the bottle or the volume of fluid in a beaker. In a similar manner, you can determine how much cat hair is visible on an area rug or how much salt a patient has just consumed.

A base's positive ion cation and an anion make up a salt.

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Here is  the pairing of elements with their respective electron behaviors:

Electron loss and electron gain refer to the transfer of electrons between atoms during chemical reactions, specifically in the formation of chemical bonds.

Electron loss and electron gain are fundamental processes in chemical reactions, as they allow atoms to achieve a more stable electron configuration by attaining a full valence shell, similar to the noble gases. This transfer of electrons leads to the formation of ionic bonds between positively and negatively charged ions or can contribute to the formation of covalent bonds by sharing electrons between atoms.

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According to the electron sea model, the melting points of metals are not as extreme as the boiling points. Therefore, the given statement is correct is true.

The Electron Sea Model's whole hypothesis relies around the behavior of atoms throughout this bonding. The movement of unpaired electrons between positively charged metal ions in a mesh is known as metallic bonding.

According to the electron sea model, the melting points of metals are not as extreme as the boiling points. This is because the cations and electrons are - in a metal. It does not take much energy for a solid to become liquid. But metallic bonds are very - , so it does require a lot of energy to separate atoms from the cations in their sea of electrons. This statement is true.

Therefore, the given statement is correct is true.

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According to the Newton’s first law of motion, the force that Dominic needs to apply in order to stop the table from moving is 12 Newtons

Newton brought a further level of specificity to the aforementioned assertion by expressing the concept of force, which is a vector variable. His First Law states that an object that has a net force of zero operating on it will either remain at rest if it was initially at rest or it will maintain a constant velocity if it was initially moving at a constant speed. If the forces were balanced, then they would nullify one another and disappear. Because of this, the overall force is equal to zero.

To make zero net force, we can calculate it by:

Net force = Shira’s force + Dominic’s force

0 = 12 N + Dominic’s force

Dominic’s force = - 12 N or 12 N (opposite direction)

Hence, Dominic needs to apply 12N (opposite direction) to stop the table from moving.

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A buffered solution will resist changes in pH when small amounts of acid or base are added.

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