Answer: "Yes".
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No because observing a physical property of a substance is just observing like color or texture. They don't change. Physical properties do not change the composition of a substance and neither do physical changes.
Answer:
the nucleus is called the mass number and, expressed in amu, is approximately equal to the mass of the atom
Explanation:
Equal pressures from the ideal gas equation (P = nRT/V) ... same moles, T and V... P must be the same. <span>Lighter gas has greater RMS speed .... KE = 1/2mv² mass and speed inversely proportional </span>
<span>Same KE .... all gases at same T have same KE </span>
Answer:
The strength of an acid or alkali depends on the degree of dissociation of the acid or alkali in water. The degree of dissociation measures the percentage of acid molecules that ionise when dissolved in water. He could use universal indicators or litmus paper for this.
Explanation:
(See answer for the explanation)
