346g of Sodium oxide (Na,0) undergoes a decomposition reaction. How many grams of oxygen gas and sodium should be produced? If I harvest 210g of sodium, what was the percent yield? Unbalanced equation: Na + O2 NaO​

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

Stage in which a star’s outer layers have started to cool and grow outward?

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients