Which of the following best describes scientists? A. All successful scientists are men with similar personalities.
B. The best scientists come from Europe.
C. Scientists come from a variety of backgrounds.
D. Scientists come from wealthy, well-educated families.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.