What is the concentration of potassium ion in 0.500 L of 0.500 M aqueous potassium carbonate, K2CO3?
A- 1.00M
B- 0.500M
D- 0.250M
C- 0.167M

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoften gain electrons easilygood conductorpoor conductorcan be liquidselements

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.