Answer:
Wind direction is determined with a wind vane.
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3 is B and 4 is C. Let me know if you need any more help.
Nearly every cell in a person's body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA)
Reactants Na and O₂
Products Na₂0
Explanation:
Na + O₂ ⇒ Na₂0
The reactants are the species on the left hand side of chemical equations.
The products are the species on the right hand side of chemical equations.
A chemical equations shows the process of a chemical change in which reactants combines to give a desired product.
The above reaction is a synthesis or combination reaction in which a reactants combines to give products.
Species that are combining are called reactants
Species that are formed are the products.
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Electron
Atoms, compounds, and molecules undergo chemical reactions to form new substances. In general, reactions proceed to produce products which are have more stability.
These chemical reactions are possible because of the ability of substances to form chemical bonds with other substances. These formation of bonds are primarily attributed to electronic interactions (i.e. the valence or outer electrons of the atoms). of substances.
Atoms are able to form new substances by gaining, losing, or sharing electrons with other atoms.