Mole-to-Mole Conversions Use the equations below to do the following mole-to-mole conversions. Be sure to balance the equation before you start any conversions. Make sure you show your work and put units on your answers! Mg + N2 + Mg3N2 1. How many moles of Mg are required to produce 2.25 moles of Mg3N2? 2. How many moles of Nu are required to produce 42.25 moles of Mg3N2? 3. How many moles of Mg3N2 would be produced from 0.35 moles of Mg?​

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.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.