5 points The density of a 30 cm long copper pipe is 8.96g/cm3. You need to cut the copper pipe into 4 equal pieces. What will be the density of each of the 4 smaller pieces of copper pipe? (density = mass/volume)

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

i think is conclusions.i think so

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.