Sodium sulfite reacts with hydrochloric acid to form water, a salt, and a gas. (a) write a balanced chemical equation for this reaction with the correct phases of all substances shown. (b) how many moles of gas are formed if 2.0 mol of sodium sulfite is consumed in excess hydrochloric acid? (c) how many moles of hydrochloric acid are required to produce 10.0 g of the gaseous product? (dy write the net ionic equation for this process. ner: na: s044 2ht onic equation for this process.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.