The correct answer is 2Ca(s)+O_2(g)→ 2CaO(s).
Combustion of calcium in air calcium is Ca with O_2 (air)
Thus the equation is:
2Ca(s)+O_2(g)→ 2CaO(s)
Calcium and oxygen react at room temperature to generate a thin layer of CaO that shields the metal from further oxidation. When burned, calcium may ignite and react with both oxygen and nitrogen to produce calcium oxide (CaO) and calcium nitride (Ca3N2).
What is combination reaction ?
A chemical reaction known as a "combination reaction" occurs when two or more reactants combine to create a single product. Such a kind of reaction does not produce any byproducts. These processes are typically exothermic, which means heat is produced.
To learn more about combustion refer the link:
brainly.com/question/9641392
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Answer: The new temperature of container is 123 K.
Explanation:
Given:
= 795 mm Hg,
= 273 K
= 358 mm Hg,
= ?
Formula used to calculate the new temperature is as follows.
![\frac{P_{1}}{T_{1}} = \frac{P_{2}}{T_{2}}](https://tex.z-dn.net/?f=%5Cfrac%7BP_%7B1%7D%7D%7BT_%7B1%7D%7D%20%3D%20%5Cfrac%7BP_%7B2%7D%7D%7BT_%7B2%7D%7D)
Substitute the values into above formula as follows.
![\frac{P_{1}}{T_{1}} = \frac{P_{2}}{T_{2}}\\\frac{795 mm Hg}{273 K} = \frac{358 mm Hg}{T_{2}}\\T_{2} = 123 K](https://tex.z-dn.net/?f=%5Cfrac%7BP_%7B1%7D%7D%7BT_%7B1%7D%7D%20%3D%20%5Cfrac%7BP_%7B2%7D%7D%7BT_%7B2%7D%7D%5C%5C%5Cfrac%7B795%20mm%20Hg%7D%7B273%20K%7D%20%3D%20%5Cfrac%7B358%20mm%20Hg%7D%7BT_%7B2%7D%7D%5C%5CT_%7B2%7D%20%3D%20123%20K)
Thus, we can conclude that the new temperature of container is 123 K.
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.