If the mass of a material is 40 grams and the volume of the material is 9 cm^3, what would the density of the material be?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

How far is the region from the equator or control climate

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.