Please, can anyone confirm that my answers are correct? Will give brainiest to first correct answer! (No links pls)
PLZ HELP

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

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