Ammonia, NH3, is held together by covalent bonds (sharing of electrons). The electronegativity of Nitrogen is 3.04 and the electronegativity of H is 2.20. Explain if this molecule has polar covalent bonds or nonpolar covalent bonds. Be sure to support your claim with evidence and reasoning

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.