Which of the following is an example of a chemical change? a. melting solid gold b. burning hydrogen gas c. breaking a sheet of glass d. dissolving sugar in water

Calculate the number of moles of ethane in 100 grams

7. in the cycle, a virus integrates its dna into the host's dna, and its dna is replicated when the host dna is replicated. a. infectious b. retroviral c. lysogenic d.lytic

Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape