Answer:
Single replacement and Zinc Sulfate
the 2nd one is double replacement and potassium nitrate
Answer:
Gaseous nitrogen has unique chemical and physical properties that make it suitable for use in food processing. Nitrogen is inert which means it will not react with prepared food materials, which can alter their aromas or flavors. Also, gaseous nitrogen will effectively displace oxygen minimizing oxidation and the growth of microorganisms that cause foods to lose their freshness and deteriorate faster.
Explanation:
Source: https://www.generon.com/using-nitrogen-gas-in-food-packaging/
Explanation:
Take shelter in a hard wall building
Close doors and windows cut off ventilation
As the temperature of a liquid increases, its viscosity decreases.