A water molecule gains enough energy to enter the gas phase is chemical or physical?why?
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It is a physical change becasue the chemical makeup of the water molecule did not change - the molecule just changed state.
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Taking into account the definition of speed, you get that the average speed of the runner is 7.27 .
It is necessary to know that speed is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it.
In other words, speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:
In this case:
- distance traveled= 100 meters
- time= 13.75 seconds
Replacing these values in the speed definition:
Solving:
Speed= 7.27
In summary, the average speed of the runner is 7.27 .
Learn more about average speed:
Answer: 7.27 m/s
Explanation: The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval.
Distance traveled= 100 m
Time taken = 13.75 s
Average speed=
Average speed=
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Answer:
angiosperm
Explanation:
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Metabolism refers to all of the chemical reactions occurring in the body cells of an organism for life sustenance. This includes synthesis processes such as:
- building a larger molecule from many smaller ones e.g. protein builds up from amino acids,
- breaking down of larger molecules into bits and smaller ones e.g.as seen in digestive reactions, and respiratory reactions.
When metabolic activities take place, there is a release of energy in the process. This energy is stored in a form of a covalent bond, a particular type of chemical bond.
On the other hand, a chemical bond is the creation of a chemical compound by forming a chemical connection between two or several more atoms, ions, or molecules.
Chemical bonds between atoms and molecules must be broken and reformed, therefore rendering chemical bonding an important element of metabolism.
Therefore, we can conclude that chemical bonds are important and a crucial part of metabolism because for metabolism to occur, Chemical bonds between atoms and molecules must be broken and reformed.
Learn more about chemical bonding here:
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Answer:
I don't know
Explanation:
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Answer:
Act nice
Explanation:
You may not like them but all you have to do is act nice around them, you might not even have to engage into conversations with them just be a nice person say hello and such and time to time go more in depth, also you can complement them even if it does not seem right to you
Answer: Be kind
Explanation: Try your best to not let them know that you don't like them because they might get angry at you and things gonna get worse