which statements is true about electrons in their energy levels?
a. electrons closer to the nucleus require more energy to remove.
b. elements with greater atomic mass require more ionization energy.
c. elements with small atomic radii easily gain electrons.
d. electrons are lost from the inner energy levels first.

ANSWER

Temperature

EXPLANATION:

From the question given, we were told that a scientist heated 100mL solution and measured its volume as it became warmer.

To determine the heat of the solution, we need to measure the temperature of that solution. Temperature is the degree of hotness or coldness of a substance. It can also be defined as the degree of internal heat.

So, measuring the temperature of the solution will tell us the amount of heat present in that solution

Precipitate X is yellow while precipitate Y is white

The color of a lead precipitate can depend on a variety of factors, including the chemical composition of the precipitate, the size and shape of the particles, and the lighting conditions under which it is viewed. In the case of lead(II) iodide, the yellow color is due to the absorption of light in the visible spectrum by the compound's molecular structure.

The specific arrangement of atoms in the lead(II) iodide molecule causes it to absorb blue light, leaving only yellow light to be transmitted or reflected, which gives the compound its yellow color.

Learn more about precipitate:https://brainly.com/question/30904755

#SPJ1

Answer:

C.

Explanation:

The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases. ... As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder. Relative sound intensities are often given in units named decibels (dB).

The correct statement about the amplitude of a wave is option C. Thus, the larger the amplitude, the more the energy that is carried by the wave.

Amplitude of a wave is a parameter describing the intensity of the wave. Amplitude of a transverse wave and sinusoidal waves are measured as the distance between from the central point of a crest to its top or the the distance from the central point of the trough in the line to its bottom part.

The amplitude of a wave is directly proportional to the frequency of the wave and the frequency in turn is directly proportional to the energy of the wave.

Therefore, The correct statement about the amplitude of a wave is option C. Thus, the larger the amplitude, the more the energy that is carried by the wave.

To find more on amplitude, refer here:

https://brainly.com/question/8662436

#SPJ2

Answer: Argon-52

Explanation: Its B

Explanation:

Oxidation Numbers. It is often useful to follow chemical reactions by looking at changes in the oxidation numbers of the atoms in each compound during the reaction. Oxidation numbers also play an important role in the systematic nomenclature of chemical compounds.

brainliest please

Yes, the redox reaction will take place as the E0 value is positive, indicating it is electrically possible.

The half-responses engaged with the response are:

\(Fe_{3} ^{+} + e- - > Fe_{2}^{+}\) (E° = +0.77 V)

\(Cl_{2} + 2e- - > 2Cl^{-}\)(E° = +1.36 V)

To decide whether the response is electrically potential, we really want to think about the standard cathode capability of the oxidation and decrease half-responses.The general response can be acquired by adding the half-responses as follows:

\(2FeCl_{3} + 2e- - > 2FeCl_{2} + Cl_{2}\) (E° = +0.59 V)

Since the standard terminal capability of the general response is positive, the response is electrically conceivable. Along these lines, \(Fe_{3}^{+\) is diminished to \(Fe_{2} ^{+\) and \(Cl_{2}\) is oxidized to frame \(Cl^{-}\). The \(Fe_{3}^{+\) particle goes about as an oxidizing specialist and the \(Cl_{2}\) atom goes about as a diminishing specialist. The response continues unexpectedly under standard circumstances.

To learn more about redox reaction, refer:

https://brainly.com/question/14930553

#SPJ4

False. A rigid tank containing ionized gases kept under the influence of a magnetic field is not a simple compressible system.

Is keeping under magnetic field influence simple?

A simple compressible system is defined as a system where the pressure, volume, and temperature are related by a simple equation of state, such as the ideal gas law. In such a system, the pressure, volume, and temperature are independent variables, and changes in one of them result in changes in the others.

However, in the case of a rigid tank containing ionized gases kept under the influence of a magnetic field, the behavior of the gases is not described by a simple equation of state. The magnetic field affects the motion of charged particles and creates complex interactions between the particles and the field. This results in a more complex behavior that cannot be described by a simple equation of state.

Therefore, a rigid tank containing ionized gases kept under the influence of a magnetic field is not a simple compressible system.

To know more about magnetic influence , checkout

https://brainly.com/question/15151378

#SPJ4

Answer: the answer is A

Explanation:

All the options are correct. The catalytic converter reduces nitrogen monoxide, photochemical smog and also particulate pollution.

An internal combustion engine's emissions are reduced using a catalytic converter. The majority of contemporary cars and trucks use it.

Because there isn't enough oxygen to completely oxidize the carbon fuel in these engines into carbon dioxide and water, hazardous byproducts are created instead.

Catalytic converters are used in exhaust systems to provide a site for the oxidation and reduction of toxic by-products (like nitrogen oxides, carbon monoxide, and hydrocarbons) of fuel into less hazardous substances such as carbon dioxide, water vapor, and nitrogen gas.

Utilized in exhaust systems, catalytic converters allow for the conversion of harmful fuel byproducts like nitrogen oxides, carbon monoxide, and hydrocarbons into less dangerous ones like carbon dioxide, water vapor, and nitrogen gas.

To learn more about catalytic converter

https://brainly.com/question/15591051

#SPJ4

The reaction between ethyl bromide and sodium cyanide in acetone is most likely an SN2 reaction that is characterized by a strong nucleophile and polar aprotic acetone.

The SN2 mechanism is the reaction that is generally seen in organic compounds and is characterized by the breaking and forming of chemical bonds synchronously. It is based on nucleophilic substitution.

The reaction between ethyl bromide and sodium cyanide is SN2 as it has a strong nucleophile and acetone act as a polar solvent. Ethyl bromide is an alkyl halide that has leaving group for the substrate.

Therefore, it is an SN2 reaction mechanism.

Learn more about the SN2 mechanism, here:

https://brainly.com/question/12242526

#SPJ4

Answer:

The answer is C

Explanation:

An atom is extremely small, but a device to make them look bigger, like a microscope, will help Xavier see it

Answer:

Thermal, is mainly the heat trapped or in an object, such as a boiling water over a stove, its trapped and countinues to get hotter

Heat is basically the releasing of the energy that is contained in an object.

Thermal is the objects temperature, while heat is the Thermal energy that is released.

Explanation:

Answer:

The answer is relevant.

Scientific investigations must be well relevant to be sure the data collected will help answer the scientist's question.

A scientific investigation is an investigation that is done in the field of science. This unravels the secrets of the earth and the logical reason behind the things happening.

There are three types of scientific investigations. They are descriptive investigation, comparative investigation, and experimental investigation. When we see a thing happening in the environment or anywhere, always find a reason behind it.

The steps in completing a scientific investigation are:

Thus, the scientific investigations must be well relevant to the data.

To learn more about the scientific investigation, refer to the below link:

https://brainly.com/question/8386821

#SPJ6

The ratio of the rate constant for the catalyzed reaction to that for the uncatalyzed reaction can be determined based on the activation energies of the reactions.

The ratio of the rate constant for the catalyzed reaction (k_cat) to that for the uncatalyzed reaction (k_uncat) can be calculated using the Arrhenius equation:

\(\[ \frac{k_{cat}}{k_{uncat}} = \frac{e^{-\frac{E_{a,cat}}{RT}}}{e^{-\frac{E_{a,uncat}}{RT}}} \]\)

Where Ea,cat is the activation energy for the catalyzed reaction, Ea,uncat is the activation energy for the uncatalyzed reaction, R is the gas constant, and T is the temperature in Kelvin.

Assuming that the frequency factor (A) is the same for both reactions, it cancels out when calculating the ratio. Therefore, the ratio of the rate constants is solely dependent on the activation energies.

Learn more about rate constant

brainly.com/question/20305922

#SPJ11

Answer:

chloroplast and cell wall!

Explanation:

not entirely true. tho bc some animals have been found with chloroplasts :)

Answer:

b

Explanation:

Mussels would have detrimental effects in shell formation and growth such as weakened shell formation, thinner shells, and slower growth rates.

If calcium carbonate (CaCO3) were insoluble in water, it would have a significant impact on mussel shells and other organisms that rely on calcium carbonate for shell formation.

Mussel shells are composed primarily of calcium carbonate, which is obtained from the surrounding water. Mussels and other shell-forming organisms extract dissolved calcium ions (Ca2+) and carbonate ions (CO32-) from the water to build their shells.

If calcium carbonate were insoluble in water, it would mean that the calcium and carbonate ions would not be readily available for uptake by the mussels. As a result, mussels would face difficulties in shell formation and growth.

In such a scenario, mussels would struggle to obtain sufficient calcium and carbonate ions from the water. This would lead to weakened shell formation, thinner shells, and slower growth rates. Additionally, existing mussel shells may experience degradation over time without the ability to repair or strengthen their shells.

Ultimately, the inability of calcium carbonate to dissolve in water would have detrimental effects on mussel shells and the overall health and survival of shell-forming organisms.

Learn more about CaCO3:

https://brainly.com/question/29142114

#SPJ11

The metric tons of \(5.3 * 10^3\) lb is 11.74 metric tons

A metric ton is a unit of measurement for mass or weight, and it is equal to 1000 kilograms. It is commonly used to measure the weight of large objects such as ships, steel beams, or large quantities of material. It is also used to measure the capacity of a cargo container, or the weight of a truckload of goods. Metric tons are often abbreviated as "t" or "MT".

One metric ton is equal to 1000 kg, and one pound is equal to 0.45359237 kg.

To convert\(5.3 * 10^3\) lb to metric tons, we can use the following equation:

\(Metric tons =\frac{ (5.3 *10^3 lb) }{ (1000 kg/metric ton)} \\ = \frac{(5.3 * 10^3 lb) }{ (0.45359237 kg/lb)} \\ \\= 11.74 metric tons\)

Therefore, The metric tons of \(5.3 * 10^3\) lb is 11.74 metric tons

learn more about metric tons Refer:brainly.com/question/4062096

#SPJ4

Kilogram (kg) is use for the measurement of mass

1kg = 1000g (gram)

For Process A:

a. The work done on the system is zero because the expansion is isothermal and the pressure remains constant.

b. The heat is added to the system to maintain the temperature constant during the expansion.

c. The internal energy change is also zero because the process is isothermal.

d. The enthalpy change is also zero since the pressure and temperature remain constant.

For Process B:

a. Since the process is isometric (constant volume), no work is done by or on the system.

b. No heat is exchanged during an isometric process.

c. The internal energy change is zero because there is no temperature change.

d. The enthalpy change is zero because the process occurs at constant volume.

For Process C:

a. The work done by the system is calculated as the negative of the area under the pressure-volume curve during compression.

b. No heat is exchanged during an isobaric process.

c. The internal energy change is zero because the temperature remains constant.

d. The enthalpy change is given by the formula: ΔH = ΔU + PΔV, where P is the constant pressure.

For the A-B-C cycle:

a. The work done by the system is the sum of the work done during each individual process.

b. The heat added to the system is the sum of the heat added during each individual process.

c. The total internal energy change is the sum of the internal energy changes in each process.

d. The total enthalpy change is the sum of the enthalpy changes in each process.

To calculate the specific values for each process, the ideal gas equation can be used:

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

By applying the ideal gas equation and considering the given conditions and volumes for each process, the specific values for work, heat, internal energy change, and enthalpy change can be calculated accordingly.

In conclusion, the analysis of the thermodynamic processes A, B, and C, as well as the A-B-C cycle, involves understanding the work, heat, internal energy change, and enthalpy change associated with each process. The specific values can be determined using the ideal gas equation and the given conditions.

Learn more about enthalpy changes  here https://brainly.com/question/29556033

#SPJ11

Botulinum toxin; black widow spider venom pair of drugs below are known to facilitate and inhibit (respectively) the release of ACh. Thus, option C is correct.

Acetylcholine is released when an action potential is conveyed to the axon terminal, where depolarization leads calcium channels linked to voltage open and enables an influx of magnesium, which then permits the ejection of acetylcholine-containing vesicles into the synaptic cleft.

ACh is known to be released more readily by black widow spider venom than by botulinum toxin, which is known to block ACh release. This is a neurotransmitter that is found within every motor neuron and that aids in the contraction of muscles, playing a role in all bodily motions. Blocking of ACh can impede the ability to control one's muscles and produce cramps, twitches, and cramping.

Therefore, option C is correct.

Learn more about ACh, here:

https://brainly.com/question/31842459

#SPJ4

Answer:

it would be number 4

Explanation:

Endothermic and exothermic reactions are two types of chemical reactions that differ in terms of the heat energy involved and the direction of heat flow.

Endothermic reactions absorb heat energy from the surroundings, resulting in a decrease in temperature. These reactions have a positive change in enthalpy (ΔH), meaning that the products have higher energy than the reactants. An example of an endothermic reaction is the process of photosynthesis, where plants absorb energy from sunlight to convert carbon dioxide and water into glucose and oxygen.Exothermic reactions release heat energy into the surroundings, leading to an increase in temperature. These reactions have a negative change in enthalpy (ΔH), indicating that the products have lower energy than the reactants. Combustion reactions, such as burning wood or fuel, are common examples of exothermic reactions.Enthalpy (H) is a thermodynamic quantity that represents the total heat content of a system. It includes both the internal energy of a system and the work done by or on the system. In the context of chemical reactions, the enthalpy change (ΔH) represents the heat energy exchanged during the reaction. For endothermic reactions, ΔH is positive, while for exothermic reactions, ΔH is negative.The rate of a chemical reaction is closely related to the frequency and effectiveness of particle collisions. The collision theory states that for a reaction to occur, particles must collide with sufficient energy and proper orientation.

Particle collisions play a crucial role in chemical reactions because they bring reactant molecules into close proximity, allowing them to interact and form new products. When particles collide, their kinetic energy determines whether the collision will result in a successful reaction. If the collision has sufficient energy (equal to or greater than the activation energy), and the particles are correctly oriented, they can overcome the energy barrier and undergo a chemical transformation.The collision theory helps explain factors that influence reaction rates, such as temperature, concentration, and catalysts. Increasing the temperature provides particles with more kinetic energy, leading to a higher collision frequency and increased reaction rate. Similarly, higher reactant concentrations increase the likelihood of collisions and, consequently, the reaction rate. Catalysts work by providing an alternative reaction pathway with lower activation energy, enabling more successful collisions and accelerating the reaction.Understanding the collision theory is essential for predicting and controlling reaction rates, optimizing reaction conditions, and designing efficient chemical processes.

for more such questions Endothermic

https://brainly.com/question/6357350

#SPJ11

Answer:

hhjcioz xlioyudiyyxyisrupautwtritu regards Roy

Answer:

Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed. Enzymes are naturally occurring catalysts responsible for many essential biochemical reactions.

Explanation:

Answer:

It's new volume will be approximately 17.637 liters.

Explanation:

In 10 minutes, one collects 100 times as much light with a 10-meter diameter telescope as with a 1-meter diameter telescope.

The amount of light collected by a telescope is directly proportional to the area of its aperture.
Let A1 and A2 be the apertures of the 1-meter diameter telescope and the 10-meter diameter telescope, respectively.
The area of the 1-meter diameter telescope is: A1 = (π/4) × (1m)² = 0.785 m²
The area of the 10-meter diameter telescope is: A2 = (π/4) × (10m)² = 78.54 m²
Thus, the ratio of the areas is A2/A1 = 78.54 m² / 0.785 m² = 100.
The ratio of the amount of light collected by the 10-meter diameter telescope to that collected by the 1-meter diameter telescope is therefore 100. In 10 minutes, the 10-meter diameter telescope collects 100 times as much light as the 1-meter diameter telescope.

In summary, in 10 minutes, one collects 100 times as much light with a 10-meter diameter telescope as with a 1-meter diameter telescope.

To know more about telescope, click here

https://brainly.com/question/31634676

#SPJ11

Answer:

this would be an oxidation-reduction reaction