These molecules are . Two ball-and-stick models of molecules. The first model has a chain of four black balls connected successively. Each of the two black balls, which are at the ends of the chain, has three white balls attached. Each of the two other balls has two white balls attached to them. The second model has a chain of three black balls connected successively. The central ball has one white ball and one black ball attached. This last-mentioned black ball has three white balls attached to it. Each of the two black balls, which are at the ends of the chain, has three white balls attached.

answer: c.

explanation:

2b2t

explanation:

2b2t

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".