A stockroom attendant has a 15.0%(w/v) solution of KOH. What volume of this solution should she use if she needs to prepare 20.0 mL of a 10.0%(w/v) solution?
A) 6.67 mL
B) 7.50 mL
C) 13.3 mL
D) 15.0 mL
C
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Many less developed countries fear the loss of folk culture because
A) they do not want to preserve traditional values. B) Western perspectives may become more dominant. C) popular culture devalues women. D) they want to avoid political disputes. E) Western clothing styles are less comfortable.
Which of these factors prohibits the marine west coast climate of the U.S. from extending farther inland?
a. latitude b. ocean currents c. prevailing winds d. mountain barriers e. cT air masses
Cold fronts usually move more slowly than warm fronts
Indicate whether the statement is true or false
Single-celled animals known as ____________________ were plankton that diversified tremendously
during the Mesozoic. Fill in the blank(s) with the appropriate word(s).