A car traveling at 20 m/s starts to decelerate steadily it comes to a complete stop in 10s. The equation for the acceleration is velocity divided by time. So divide 20 m/s by 10 s and you will get an acceleration of 2 m/s2.
B) melting point
C) solubility
D) temperature
Answer:
a
Explanation:
because the Styrofoam cup is less dense than the water it floats and because the nail is more dense it sinks
Answer: The given statement is true.
Explanation:
A chemical change is a change that causes change in chemical composition of a substance.
This change is due to the exchange of electrons that lead to the formation or breaking of bonds.
For example, sodium atom on donating an electron to chlorine atom forms an ionic bond due to transfer of electron.
This formation of ionic bond leads to the formation of a new compound named as sodium chloride.
Therefore, we can conclude that the statement a chemical change involves the formation or the breaking of bonds, is true.
Chemical change involves the formation or breaking of bonds, leading to the formation of new substances.
A chemical change involves the formation or breaking of bonds. When a chemical change occurs, the atoms rearrange themselves, leading to the formation of new substances with different properties. This is different from a physical change, where no new substances are formed.
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