- What isotope of Samarium is used to make cobalt magnets?

Discover Questions

The hydronium ion concentration in an aqueous solution at 25 C is 6.1 × 10-2 M. What is the hydroxide ion concentration in this solution? What is the scale of 54 mm? How do I solve f(x+3) when f(x) = 4-x^2? The area of a circle is given by (pi k squared minus twelve pi k plus 36 pie) square inches. What is the radius of the circle? How are hallucinogenics not direct evidence of alternate realities?