Alpha particle is equivalent to B. Helium atom (2 protons, 2 neutrons)
Blood is a liquid substance flowing through the arteries and veins of the body. In a healthy normal person, approximately 45% of their blood volume are cells (mostly red blood cells, white blood cells and platelets).
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Answer:
Chemical changes cause a substance to change into an entire substance with a new chemical formula. Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the results are called products.
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apparently colorless light, for example ordinary daylight. It contains all the wavelengths of the visible spectrum at equal intensity.