A student conducted an experiment on the chemical reaction rates of burning coal. She broke a coal sample of 95.1 g into large lumps and another coal sample of 95.1 g into small lumps. She continually measured the weight of the coal lumps for 400 seconds while they burned. Which statement correctly explains why the small lump coal burned faster?

Easy definition for atom and atomic mass

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

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.