Recall that carbon is the second most common element in our body and is found in all organic molecules. Recall, too, that carbon atoms contain four electrons in their outer electron shell. With this number of electrons, carbon atoms may form up to four single covalent bonds. Covalent bonds involve the sharing of electrons between bonding atoms. What kind of covalent bond is formed when the electrons are NOT shared equally between the bonding atoms, for example, when hydrogen and oxygen atoms bond in a water molecule?

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

Which three statements represent the benefits of performing experiments using computer simulations?