The weight of an object is 200 n. the object sinks in tub of water. the bouyant force is: less than 200 n greater than 200 n equal to 200 n

The buoyant force is less than 200 N. In order for an object to float, the buoyant force of the fluid must be greater than or equal to the displacement  of the object. Hope this helps!

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

the answer is 303.15 or 303