Which compounds are most likely to have covalent bonds?
select all that apply.
hint: review your periodic table.

naf
mgo
h2o
co

The answer to your question is; H2O and CO.

Explanation:

Ionic bonding is when a metal donates its valence electrons to a nonmetal.

Covalent bonding is when two nonmetals share electrons to reach noble gases' configuration.

NaF   here we have a metal and a nonmetal, then the bonding is ionic.

MgO  here, there is also a metal and a nonmetal, the bonding is ionic.

H2O  here, there are two nonmetals, so this is a covalent bonding.

CO here, there are two nonmetals, the bonding is covalent.

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

answer: they produce more slow than unicellular organisms.