How many grams of tetraphosphorous decoxide can be produced from 4.35x1024 molecules of potassium chlorate? _KCIO3 + _P4 → _P4010 + __KCI

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Why are people not able to skip a dive to the deepest part of the ocean

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.