b.) Decreases
c.) Remains the same
d.) Volume changes
Temperature is the average kinetic energy so I would say the answer is A.
B. network solid
C. metal
D. nonmetallic solid
Answer:
The correct answer option is B. network solid.
Explanation:
A network solid has the highest melting point.
The reason being that all of the atoms in this type of solid are covalently bonded to one another so the covalent bonds must be broken throughout the substance.
These covalent bonds holding the solid together are stronger than the ionic bonds. So it means that more heat energy is needed to break these bonds and therefore a higher temperature is required for it.
Network solids have the highest melting point.
What type of solid has the highest melting point?
The correct answer is B. network solid. Network solids, also known as covalent network solids, have the highest melting points among the options listed. These solids are held together by a three-dimensional network of covalent bonds, which require a significant amount of energy to break and hence have high melting points.
For example, a diamond is a network solid consisting of carbon atoms bonded together in a strong network of covalent bonds. It has an extremely high melting point of around 3,500°C.
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The answer is D) Heat
When energy changes from one form to another, some energy is always changed to heat.
Please mark a brailiest ^-^
When energy changes from one form to another, some energy is always changed to Heat.
Which means the answer is D. (Heat)
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A book dropped from a certain height has no potential energy when it reaches the floor, since the height (a factor in the potential energy equation 'PE = mgh') becomes zero.
The potential energy of an object of mass (m) at height (h) is given by the formula PE = mgh, where g is the acceleration due to gravity (approximated as 9.8 m/s² on Earth). In this case, however, when a book reaches the floor after being dropped, its height is 0 meters, hence its potential energy is also 0 joules because potential energy is dependent on height.
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