reactivity! when something reacts to another substance, its a chemical change. When something melts, boils, or changes color, it is still the same substance, therefore is physical
Answer: Fe + 3NaBr → FeBr3 + 3Na
Explanation: You take the Br from 2NaBr and it makes FeBr3, so it makes a single replacement.
Answer:Carbs Provide Your Body With EnergyGlucose in the blood is taken up into your body's cells and used to produce a fuel molecule called adenosine triphosphate (ATP) through a series of complex processes known as cellular respiration. Cells can then use ATP to power a variety of metabolic tasks.
Explanation:
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Answer: The two substances are the same because their intensive property is the same.
Explanation: the answer is The two substances are the same because their intensive property is the same.
this is the correct answer because the boiling point is a is a bulk property this mean that is a property of substance or sample which does not change as the amount of substance or sample changes.
also we have to keep in mind that the boiling point is is a physical property that is not dependent on the size or mass of a sample.
so we can conclude that you can change the mass, the volume of this sample or this substance the boiling point always will be the same.
