The materials which allow heat to pass through them easily are conductors of heat. For examples,aluminum, iron, and copper.
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Sodium chloride and prussic acid are formed
NaCN+HCl→NaCl+HCN
People had asked this many times and that is why they came up with methods and standards that will answer these type of questions. You can look it up in the NIST or the National Institute for Standards and Technology.
Answer:
A , B, C
Explanation: D is a Diamagnetic
