Question

all chemical reactions of ch 4 metalal reactions class 8​

Answer 1

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Refer to the attachment.

Answer 2

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• 2Na+2H₂O(cold) → 2NaOH+H2+heat
• Ca+2H₂O(cold)→ Ca(OH)2+H₂
• Mg+2H₂O(hot)→ Mg(OH)2+H2
• 2A1+3H₂O(steam) → Al2O3+3H2
• Zn+H₂O(steam) → ZnO+H₂

$\sf\blue {Hope\:it\:helps}$