Answer:
a) will react with water: K
b) will react with steam or acid, but not water: Cr & Sn
d) will not react with water, steam, or acid: Cu
Explanation:
K reacts violently with water.
Cr will react with steam to form an oxide + H gas and will react with most acids
Sn will react with steam to form SnO₂ + H gas and, though it does not react as rapidly as other metals in acid, it dissolves easily in concentrated acids
Cu is an extremely nonreactive metal, which is what makes it so suitable for wiring
Answer:
Cryogenic distillation
Explanation:
Cryogenic Distillation is the process in which Nitrogen and Oxygen are separated from air. Thus in cryogenic distillations the components having very low boiling points are distilled selectively at low temperatures. This method produces products of high purity but also it is quite energy intensive.
The segment that represents melting is time (minutes) and temperature.
Explanation:
Photosynthesis is the process by which green plants manufacture their food using carbon dioxide and water in the presence of sunlight.
It is expressed using the equation below;
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
reactants products
1. Compounds consumed are carbon dioxide and water.
2. Product is glucose and oxygen.
3. Most organism obtain their nourishment directly and indirectly from photosynthetic activities.
Plants are the producers of food in the ecosystem. If the process of photosynthesis does not occur, there is no way other organisms will obtain their own nourishment.
