Discover Questions

How many atoms of fluorine are there in 4.56 moles of MgF2
I don't even know where to start? If the circumference of a circle is 69.124mm. Find the area of the circle ,correct to 1 decimal place. (Take 3.142)? If I take a probiotic and an antibiotic at the same time, would the effect be neutral? Please explain in an elaborate way? How do I solve 20 √270 / 4 √3 ? How would u simplify x^4 • x^5?