Each carbon atom in ethane forms 4<span> bonds: 1 to a carbon atom and 3 to each of the attached hydrogen atoms. A single covalent bond containing 2 shared electrons is also called a sigma (σ) bond.
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Meiosis<span> has two rounds of genetic separation and cellular division while </span>mitosis<span>only has </span>one<span> of each. In </span>meiosis<span> homologous chromosomes separate leading to daughter cells that are not genetically identical. In </span>mitosis<span> the daughter cells are identical to the parent as well as to each other.</span>
Chemical reactions occur when chemical bonds between atoms are formed or broken. If this is what you mean because the question is really confusing sorry :(
Answer:yo no se mucho de esto pero yo creo que es la A por que el clima cambia siempre por ejemplo un dia es soliado y al dia siguiente es nublado o algo asi y es cierto el clima cambia constantemente como las personas
Explanation: