Answer:
The acronym CHNOPS, which stands for carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur, represents the six most important chemical elements whose covalent combinations make up most biological molecules on Earth. All of these elements are nonmetals.
Data can be arranged in visual displays is called graphs to make identifying Trends easier.
Answer:
63.7
Explanation:
Percent yield is actual yield over theoretical yield. In this case, 10/15.7 = .637 = 63.7%.
Answer:
ggghy I am a great and the other hand the wildcats their own is the name of the
Because 25% is half of 0.5 and the half life of
is given as 5,715, the time it takes to reach this amount should just be double the half life: 11430 years.
However, in other cases the problem may not have easy numbers, so below is a more mathematical approach.
The half life formula is
.
Solving for t gives:

Given information:

Plug in given values and solve for t.

With correct significant figures, this would be 11000 years.