What scientists do that is the basis for there investigation

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma