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Mg(c) + 237shi (4z) ¥at h2)
The answer to this question would be: 2 mol
To answer this question, you need to know the molecular weight of Potassium. Molecular weight determines how much the weight of 1 mol of a molecule has.
Potassium or Kalium molecular weight is 39.1 gram/mol. Then, 78.20gram of potassium should be: 78.20g/ (39.1g/mol)= 2 mol
Answer:
I am also beginners I don't know I am only completing this answer and sorry!!!!!!
B) hydrogen gas burns in air.
explanation: the rest are physical properties.