2. Balance this reaction: _CH,
02---0, H20
a) 2,1,3,1
b) 1,2,1,2
c) 1,2,2,1
d) 2,1,1,2

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.