Answer: Download filters!
Explanation:
Find the moles of Boron and of Chlorine:
Assume there are 100 g of the compound in all
Boron: 9.224% --> .09224 (convert percent to decimals)
.09224*100g = 9.224g Boron (theoretical amt)
9.224g* 1mol/10.81g (molar mass Boron) = .8533 moles Boron
Every sister's point of view is different. An older sister might think maturely while a younger sibling might think more naive or immaturely.
The last options seems right. the one that is " Trees that are not native to North Texas, are often killed by heat and drought. "
