Question 7 (4 points)
which statement is not true?

a mixture is a group of chemically bonded substances

a mixture can be any collection of different elements, molecules, and/or
compounds
frid
a mixture is not chemically bonded together
a mixture can be separated into its parts

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

What is the main reason why some developing countries fear the increase the free trade policies around the world?

Answer asap need 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.