Which experiment could the scientists use that would best determine if these tiny structures are spores? O Test them for chemicals normally found in living cells. O Observe whether they are made of atoms by using a high-powered microscope. Place them in water and see if they change in shape or mass. Observe whether they go through the steps of cell division to form new cells.

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

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.