5 Claims • Evidence • Reasoning How does environmental change affect the survival of
a species? Summarize evidence to support
your claim and explain your reasoning.

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Why are pipes bursting in the in extremely cold weather?