Well, honey, that 2 in MgBr2 means that there are two bromine atoms for every magnesium atom. It's like a little bromine party happening with magnesium as the host. Just remember, chemistry is all about ratios and making sure everyone gets along in the compound.
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Geometric mean of 2 and 25 = sqrt(2*25) = 5*sqrt(2) = 7.071
To find the mean, you add all of the numbers and divide by how many numbers you added together. 7+2+3+2+1=15. 15/5=3. The mean is 3.
2 nickels in a dime
That would mean d times 2.
do u mean 2+2=5 no it doesnt it equals 4