PL HEL BRAINLIEST FOR WHO GETS IT RIGH Which of the following statements are true about the following chemical equation? 4Na + O2 > 2Na2O
Question 4 options:

1 molecule of sodium combines with 1 molecule of oxygen to make 2 molecules of sodium oxide

4 molecules of sodium combine with 2 molecules of oxygen to make 2 molecules of sodium oxide

4 molecules of sodium combine with 1 molecule of oxygen to make 1 molecule of sodium oxide

4 molecules of sodium combine with 1 molecule of oxygen to make 2 molecule of sodium oxide

Need on both questionswill markbr />

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

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.