Which of these is a mixture 1) carbon 2)carbon dioxide 3)air 4)oxygen

When curium-242 is bombarded with an alpha particle, two products are formed, one of which is a nudge on. what is the other product

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction