TIMED TEST Two helium isotopes fuse to form beryllium as shown below. The mass of beryllium is 2.73 x 10-7 kg less than the combined mass of the two helium atoms. How much energy was produced during this reaction? The speed of light is 3x108 m/s. Show your work. Use E=mc2.

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

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.

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg