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

Can smoke be transformed into liquid or used as energy or both?

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)