A salt sample is place into some water and all quickly dissolves. To this solution, more salt is added and also dissolves.

A salt sample is place into some water and all quickly dissolves. To this solution, more salt is added and also dissolves. What is the best description of the original solution?
unsaturated

Carbon dioxide contains _____ polar bonds and the entire molecule is best classified as _________.
2, nonpolar

Electronegativity is the attraction an atom has towards
shared electrons

For nonpolar molecules, the most significant type of intermolecular forces are
induced dipole-induced dipole

How are ion-dipole interactions able to break apart the relatively strong ionic bond when an ionic solute dissolves into a polar solvent?
many weaker ion-dipole interactions work together to pull apart the stronger ionic bond

How many atoms of carbon (C) are in 24.0 grams of carbon?
2 moles of atoms

If a molecule has a molecular (or electron) geometry that is tetrahedral, how many substituents are surrounding the central atom of the molecule?
4

It is easy to induce a dipole in an iodine atom because
electrons find it easy to group to one side because of iodine's large size

What type of bond might you expect between a carbon atom and bromine atom?
polar covalent

The total number of valence electrons used in drawing a Lewis structure for PCl3 would be:
26

The correct shape for a methane (CH4) molecule would be:
tetrahedral

What exactly is a hydrogen bond?
a strong dipole-dipole interaction involving a hydrogem atom from one molecule and a very electronegative element from another molecule

When water at 4 degrees Celcius is heated it expands. When water at 4 degrees Celcius is cooled it
expands

When a solid is changed to a liquid state, the solid
absorbs energy

The desert sand is very hot in the day and very cool at night. What does this tell you about the specific heat capacity of the sand?
Its specific heat capacity is small

The term "balanced" as applied to chemical equations means:
the number of atoms of each element is the same on both sides of the equation

A catalyst will
decrease the activation energy for a reaction

What is the mass of a single lithium (Li) atom in amu's ?
6.9

What is the mass of 1 mole of lithium (Li) atoms?
6.9 g

For the balanced reaction:  3  H2  +  N2   ---->   2 NH3, how many moles of ammonia (NH3) will be produced from 4.0 moles of nitrogen (N2)?
8 moles