Which is a sign of a chemical change? question 6 options: paint on a freshly painted wall dries and is no longer sticky. ice cream melts when left at room temperature. vinegar is mixed with baking soda resulting in carbon dioxide bubbles. calcium chloride is dissolved in h2o and disappears.

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.