Which statement describes the weather and climate in a tropical region?

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

Achemist weighed out 101.g of silver. calculate the number of moles of silver she weighed out.

Water is called the universal solvent because more substances dissolve in water than in any other chemical. this has to do with the polarity of each water molecule. the hydrogen side of each water (h2o) molecule carries a slight positive electric charge, while the oxygen side carries a slight negative electric charge.