Afixed amount of material a is added to a tank; then a fixed amount of material b is added to the tank containing material a. upon heating and stirring, the two react to form c. the reaction works best if just a small amount of b is added to a at a time. add the appropriate instrumentation to the process and draw a p& id depiction of the process using drawing software such as microsoft visio

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

answer; talc and gypsum;

2b2t

explanation:

2b2t