The density for potassium is 0.856 g/cm3. what would be the mass of a 30 cm3 piece of potassium? a. 51.36g b. 25.68g c. 25.5g d. 35.05g

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Define a is a tiny pavket of energy

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.