Sodium atoms give of a yellow/orange colored flame when heated. does this mean that all substances that give off a yellow/orange flame when heated contain sodium?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Element before carbon on the periodic table

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number