<span>A covalent bond is a bond formed by atom sharing.
In water molecule, there are twice the number of hydrogen atoms than the oxygen atoms. Its structure is H-O-H. The electronegative difference between the H and O allows them to be polar because on side there is positive charge and on another side there is negative charge.</span>
Answer:
Vascular plants are successful due to better transportation for water, nutrients and reproduction.
Explanation:
I got it right at school and hope this helps you learn to STUDY.jk
Answer:
example of carbonate containing oxygen :
( calcium carbonate having 3 atoms of oxygen )
example of oxide containing oxygen :
( carbon dioxide having 2 atoms of oxygen )
Answer:
each of two or more forms of the same element that contain equal numbers of protons but different number of nurtrons
in there nucleir
Explanation:
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I think the answer is a). There are 20 kinds of amino acid can form peptides and proteins. There are many possible combinations. And there are also different folding forms and structure that can lead differences in properties.
