Chemical properties describe how things undergo chemical reactions, while physical properties describe how things behave when they're not undergoing reactions.
In the case of melting a metal, the melted metal continues to be the same material - just in a liquid rather than a solid form. As a result, melting (and all phase changes, for that matter) is a physical change and the ability of the metal to melt at 450 degrees is a physical property.
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Aufbau violation:
4s ↑↓ 3d ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ 5s ↑
<span>3s ↑ 3p ↑ ↑ ↑ </span>
<span>Hund violation: </span>
<span>4s ↑↓ 3d ↑↓ ↑ ↓ ↑ ↑ </span>
3s ↑↓ 3p ↑↓ ↑↓
Pauli violation
<span>2s ↑↑ 2p ↑ ↑ ↑</span>
Answer:
Explanation:
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In this case, according to the given chemical reaction, it is possible for us to relate the rate of formation of C and the rate of consumption of B as shown below:
Thus, we solve for the rate of change of B as shown below:
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