reyrey0075

naturally ocurring copper contains a mixture of 69.09% copper-63 (62.9298amu), and 30.91% copper-65 (64.9227amu). What is the average atomic mass of copper?

Class-Fashion Design

Explain how you would handle a client who is upset that a fabric is not the color that they ordered. In your answer, focus on the knowledge, skills, and attitudes you would use.

What is copper