What atomic or hybrid orbitals make up the sigma bond between c1 and c2 in dichloroethylene, ch2ccl2?.

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these