Answer: when a reaction absorbs heat or decreases the entropy of the system,
Explanation: :)
Cu + Cl2 → CuCl
copper+chloride →copper(ll)chloride
Answer:Sound waves are longitudinal waves that travel through a medium like air or water. When we think about sound, we often think about how loud it is (amplitude, or intensity) and its pitch (frequency).
Explanation:
Since the chemical definition of "stable" means close to having a full valence shell, the answer is 3d^10.
The acid and alkali that would react to make sodium sulfate is
alkali= sodium hydroxide
acid = sulphuric acid
<u><em>explanation</em></u>
Acid react react with alkali to form salt and water.
For sodium sulfate salt to be formed a sulfate acid is required to react with a hydroxide of sodium .
therefore Sodium hydroxide (alkali) react with sulphuric acid (an acid) to form sodium sulfate (salt) and water.