The melting points of ionic compounds 1. are very low because ionic bonds are very weak 2. are very high because ionic bonds are very strong 3. are very low because they are liquids at room temperature4. have no relation to the strength of the ionic bonds

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

What object a collides with object b and bounces back its final momentum is?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?