Question

please give the answer ​

Answer 1

Answer:

• The molten metal that catches fire in chlorine gas and gives off white fumes is sodium.
• The metal that forms two types of oxides and rust in moisture is iron. Its chemical formula is Fe.
• Copper because copper is a good conductor of electricity and heat.
• A  metal used in long distance cable wires is copper.
• A metal added to gold to harden it is silver, copper, platinum, palladium, and zinc to give it strength and durability.

Explanation:

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Answer 2

Answer:

• A molten metal that catches fire in chlorine gas and gives off white fumes is sodium.

• The metal that forms two types of oxides and rust in moisture is iron. Its chemical formula is Fe.

• Copper because copper is good conductor of electricity and heat.

• A metal used in long distance cables wires is copper.

• Copper acts as a gold alloy to harden the gold.