1.) Air can be separated into its constituents such as oxygen, nitrogen etc.
2.) Air has a variable composition because at different places different amount of gases are present in air.
Calcium carbon oxygen, calcium chlorine, carbon hydrogen oxygen, hydrogen chlorine, calcium oxygen hydrogen I think ♀️ Hopefully it’s right or I helped a bit
Number 2 is Blackland Prairies
The Blackland Prairies region is named for the deep, fertile black soils that characterize the area.
Answer:
j
Explanation:
Radiant energy comes from the sun. In the food chain it gives energy to plants which makes them grow. The plants store this energy and give it to the animals that consume them as the food chain goes on.
<h2>Answer:</h2>
They would be arranged in a trigonal planar orientation.
<h3>Explanation:</h3>
If there were only three electron groups around an atom they tend to repel each other and gain a trigonal planar orientation. A molecule with three electron groups orients the three groups as far apart as possible. They adopt the positions of an equilateral triangle 120° apart and in a plane. The shape of such molecules is trigonal planar. An example is BF3:
