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How Compare the formation of positive ions with the formation of negative ions in terms of energy changes?
The formation of positive ions typically involves the loss of one or more electrons from an atom, which requires energy input to overcome the attraction between the electrons and the nucleus; this energy is called ionization energy. In contrast, the formation of negative ions occurs when an atom gains one or more electrons, a process that usually releases energy, known as electron affinity, as the added electron is attracted to the nucleus. Thus, while the formation of positive ions is endothermic (requiring energy), the formation of negative ions is exothermic (releasing energy).
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What is difference between positive current and negative current which current is used for generation of electricity?
Positive current flows from the positive terminal to the negative terminal, while negative current flows in the opposite direction. In electrical systems, positive current is used for generating electricity as it represents the flow of electrons from negative to positive, which is the direction of conventional current flow.
Predict whether the changes in enthalpy entropy and free energy will be positive or negative for the freezing of water and explain your predictions How does temperature affect the spontaneity?
The changes in enthalpy, entropy, and free energy are negative for the freezing of water since energy is released as heat during the process. At lower temperatures, the freezing of water is more spontaneous as the negative change in enthalpy dominates over the positive change in entropy, making the overall change in free energy negative and leading to a spontaneous process.
What is the difference between positive and negative feedback loops?
Positive feedback loops amplify changes or effects, leading to an increase in the output or a runaway process, such as during childbirth when contractions intensify. In contrast, negative feedback loops counteract changes, promoting stability by reducing the output or returning a system to its set point, like how the body regulates temperature. Essentially, positive feedback drives growth or escalation, while negative feedback fosters balance and homeostasis.
Can mutation have effects?
changes in DNA can cause an important trait, no change, or a harmful trait.
What are the changes of protons nutrons and electrons?
Protons and neutrons are found in the nucleus of an atom and have approximately the same mass, while electrons orbit the nucleus and have a much smaller mass. Protons have a positive charge, electrons have a negative charge, and neutrons have no charge. Changes in the number of protons determine the element, changes in the number of neutrons result in isotopes, and changes in the number of electrons create ions.
How would you compare the formation of positive ions with the formation of negative ions in terms of energy changes?
The formation of positive ions typically requires energy input in the form of ionization energy to remove electrons, whereas the formation of negative ions releases energy in the form of electron affinity when electrons are added. Positive ions have higher potential energy compared to their neutral atoms, whereas negative ions have lower potential energy. Overall, the energy changes involved in forming positive and negative ions are opposite in nature.
Have economic changes been positive or negative for Russia?
Negative.
How does the electric field direction change from positive to negative in a given system?
In a given system, the electric field direction changes from positive to negative when the source of the electric field changes its charge from positive to negative.
Is this a positive or a negative change why history?
Industrial Revolution has both the negative and positive changes in the history of Americans.
What is the sign of the product of 11 negative integers and 2 positive integers?
The 2 positive integers don't affect the sign. Every time you multiply by a negative number, the sign changes, so you have negative, positive, negative, positive... Since the number of negative numbers is odd, the end result is negative.The 2 positive integers don't affect the sign. Every time you multiply by a negative number, the sign changes, so you have negative, positive, negative, positive... Since the number of negative numbers is odd, the end result is negative.The 2 positive integers don't affect the sign. Every time you multiply by a negative number, the sign changes, so you have negative, positive, negative, positive... Since the number of negative numbers is odd, the end result is negative.The 2 positive integers don't affect the sign. Every time you multiply by a negative number, the sign changes, so you have negative, positive, negative, positive... Since the number of negative numbers is odd, the end result is negative.
Why is it when you multiply two negative integers that it is a positive answer?
Multiplying anything non-zero by a negative number changes the sign. A positive number multiplied by a negative number becomes negative. A negative number multiplied by a negative number becomes positive.
Who created the positive and negative electric change?
Nobody. Positive and negative electric changes exist from the earliest stages of the Big Bang.
What other effects did Europe have on Black Death positive or negative?
both positive and negative effects were there. It killed economy, but brought social changes.
Are sublimation and vaprization positive or negative?
Neither. They are simply phase changes.
What happens when you make changes to the environment?
Everyone is either affected in a positive or negative way
What is Tests for Persistent Directional?
Mean step size - Number of positive and negative changes.
What will happen to the slope of a line if the line is shifted so that the y intercept increases and the x intercept remains the same?
The answer depends on the signs of the original intercepts.x negative, y negative: negative slope becomes less negative and could go positive.x negative, y positive: positive slope becomes greater.x positive, y negative: positive slope becomes less positive and could go negative.x positive, y positive: negative slope becomes more negative.For 1 and 3, the slope changes sign when the y intercept crosses the origin.
