Exercise 2: The words below are chopped into pieces. Find

the parts that fit together and write them down below.

THER

ENV

TEM

FALL

IRON

MENT

SPEC

LIV

SYS

FOR

ING

ESTS

IES

ECO

RAIN

WEA

0.09 moles of sodium sulfate in 12 ml of solution

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?