Sulfur has four naturally occurring isotopes: Sulfur – 32, Sulfur – 33, Sulfur – 34, Sulfur – 36. What is the atomic mass of sulfur if 95.00% of sulfur atoms have a mass of 31.972 amu, 0.76% have a mass of 32.971 amu, 4.22% have a mass of 33.967 amu, and 0.01% have a mass of 35.967? Answers; 35.967 amu

33.75 amu

32.971 amu

32.06 amu

How many moles of al3+ ions are in 1.25 moles of al2o3

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

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.