The lab procedure you just studied involves
several factors, listed below. Some are variable
and some are constant. Label each factor below V
for variable or C for constant.
initial number of radioactive nuclei
number of half-life cycles (time)
half-life of Lincolnium
number of protons in Lincolnium and
Memorium
number (or fraction) of Lincolnium atoms
DONE
Intro

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

How many grams of mgbr2 are needed to produce 75g or metal?