B, a physical change because it is not destroying the substance.
Answer:
<u>Some examples of physical properties are:
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color (intensive)
density (intensive)
volume (extensive)
mass (extensive)
boiling point (intensive): the temperature at which a substance boils.
melting point (intensive): the temperature at which a substance melts.
Explanation:
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Answer:
An organic chemical compound consisting solely of hydrogen and carbon atoms is a hydrocarbon. Hydrocarbons are compounds that occur naturally and form the basis of crude oil , natural gas, coal and other significant sources of energy.
Co2 will dissolve in water if water is saturated with Co2 first then it will absorb some of CO2 it appear as less is absorb that was actually the case . this would make it appear as present of CACO3 is in original sample is lower than it will be too low
Explanation:
molecular collisions. reactant particles must collide with one another before any reaction can occur.
activation energy. colliding particles must possess a certain minimum total amount of energy if the collision is result in reaction.
