Why has lead-free solder replaced lead-based solder

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Reference no: EM13263194

1. What is the purpose of core in hollow solder wire?

2. What is tinning, and why is it important?

3. Why is safety so important when soldering?

4. Why has lead-free solder replaced lead-based solder? Be sure to properly cite any sources of information.

Reference no: EM13263194

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