Take Pre-Assessment for Semester 1 PERA (35 minutes)
After 'test' students allowed to make a silver and gold penny (Alchemist Dream).
Penny was zinc coated (galvanized using 5 M NaOH with powdered zinc metal). Students then created a gold penny (made the alloy brass by melting the zinc and coppuer together over a bunsen burner).
Demo: Alchemist Dream (Penny Into Gold)
Begin by changing iron filings into copper
follow this by changing copper penny to silver and finally into gold
Metric prefixes (kilo-, deci-, centi-, milli-)
relate these prefixes to LD50 values
HW: Study for quiz
Nothing can stop the man with the
right mental attitude
from achieving his goal.