2. Calculate the molarity of a solution in which 0.50 moles of MgCl2 are dissolved to produce 1.5 liters

of solution.

Suppose a large atom bonds with a small atom. Will the properties of the new molecule be the same as the large atom, the small atom, or different from both?

Which of these pulls denser rocks towards Earth's center? 1. thermal energy 2. gravity 3. radiation

Cell that perform similar function combine to from

Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 84 protons and 126 neutrons. When 210Po decays, it emits an alpha particle. 210Po decay is tricky to detect because alpha particles carry very little radiation.

Which compound will give positive Tollen's test? A. pentanoic acid B. 2_pentanone C. pentanal D. 3_pentanone

Explain why the radius of an atom cannot be measured directly. (6.3)

Which measurement represents the largest volume? question 7 options: 4.6 l 4.6 * 10-3 l 46 cl 460 ml all represent the same volume?

Which statement explains how the bands in the crystal of a metal are like atomic orbitals? They both have localized electrons that orbit specific atoms. They both involve ionization of some atoms so bonding can occur.

In a system for separating gases a tank containing a mixture of hydrogen and carbon dioxide is connected to a much larger tank where the pressure is kept very low.

What formation is favored by the addition of heat.