A template of a Venn diagram representing common and differentiating characteristics of covalent and ionic bonds is shown. (picture attached) Which of the following characteristics can be written only in space C? (5 points)

A. Formed between positively and negatively charged ions
B. Occurs due to the sharing of electrons between two non-metal atoms
C. Occurs in substances that are mostly solids at normal temperature and pressure
D. Formed between an atom with very high electronegativity and an atom with very low electronegativity

Is this a single replacement reaction or there is no

Iam in desperate need of with this !

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1