Of the first 20 elements, excluding the noble gases, name four that are the least likely to form an ionic compound (i. e. least likely to become a cation or an anion)? Explain.

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?