No. It's a phase change, and all phase changes are physical
robert hooke and his microscopeExplanation:
Answer:
Slow cooling leads to the formation of large crystals. If the crystals remain undisturbed while cooling, they grow according to a regular pattern. Magma closer to the surface cools much faster than magma that hardens deep below ground. With rapid cooling, there is no time for magma to form large crystals.
Explanation:
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There are O-H bonds in H2O. They have the intramolecular force of polar covalent bond.
The denaturing of proteins is irreversible. For example, eggs cannot be unboiled. Other reactions, such as the formation of carbonic acid, are reversible.
