There are 17 protons in the nucleus of each atom of an element.
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Answer:
Single replacement and Zinc Sulfate
the 2nd one is double replacement and potassium nitrate
The correct answer is option 2. Chlorine gas molecules are held together by strong covalent bonds. This type of bond requires an ample amount of energy in order to break it and turn gas into liquid. That is why, high pressure and low temperature is needed.
