What property is used to predict whether a bond is primarily ionic o primarily covalent?

Which of the following is not a difference between compounds and mixtures?

What causes the bright, colored lines in the spectrum of flowing hydrogen gas?

What does absolute zero equal?

What is the heat required to cause a unit rise in the temperature of a unit mass of a given substance?

Which of the following equations is the usual form of the ideal gas law?

What type of bond results from the sharing of four electrons?

What term refers to very hard substances, such as diamond, silicon carbide, and quartz, that contain covalent bonds but do not consist of discrete molecules?

What is the covalent bond in which the bonding electron pair is pulled closer to the more electronegative element?

What does the uncertainty principle state about the position and momentum of small particles?

Which of the following statements about gases is not true?

What determines an atom's identity as an element?

Which of the following statements about exothermic chemical reactions is not true?

What principle states that elements tend to react chemically to achieve a noble-gas electron configuration, whether by losing, gaining or sharing electrons?

Characterized by the sharing of one or more electron pairs between two atoms?

Type of chemical bond present between atoms in such substances as CaBr2 and NaCl?

Characterized by the sharing of valence electrons with many neighboring atoms, forming a "cloud" or "sea" of delocalized electrons permeating the substance

Tends to produce solids that are malleable and ductile?

Type of chemical bond present between atoms in such substances as N2, 02m and CH4?

Characterized by the transfer of electrons from one atom to another.

Type of chemical bond usually formed between a metal atom and a nonmetal atom?

The second law of thermodynamics states that the enthalpy of the universe is always increasing.

A molecule of C02, in which two polar bonds point symmetrically in opposite directions, is polar.

The speed of light in a vacuum is approximately 3.00 X 10 8m/s.

A solid whose particles are characterized by a regular, repeating, three-dimensional pattern is an amorphous solid.

Atoms that are of the same element but differ in the number of particles in the nucleus are isotopes.

Kinetic energy is associated with object's position. 

The simplest repeating unit in a crystal is a unit cell.

Which of the three main particles that compose the atom has a negative charge?

Name PCI 5

What term refers to a bonding situation in which electrons are shared by more than two atoms?

Which type of chemical formula is the simplest ratio of atoms in a compound?

Write the formula for sodium sulfate.

How long is 2.54 cm?

In what category are the elements magnesium, calcium, and barium?

In what category are the elements flourine, bromine and iodine?

What type of geometry does acetone (CH2O), in which three bonding pairs of electrons are arrayed around the central atom , have?

Which of the following elements would you expect to have the greatest electro-negativity?

What type of reaction is Zn(s) + 2 HCL (s) ------ H2(g) + ZnCl2(aq)?

In what category are the elements boron, silicon, and germanium?

In the production of a metal part, molten steel at its melting point is poured into a mold and allowed to solidify. Which of the following quantities is involved in this process?

What type of geometry does hydrogen selenide (H2Se), which has two bonding pairs and two nonbonding pairs of electrons around the central atom, have?

The ____ law of thermodynamics relates change in internal energy to heat and work.

The ____ theory of light states that light is electromagnetic waves traveling as bundles or "packets" of energy. 

The mass of a substance per unit of volume is called?

A theoretical gas that exactly obeys the assumption of the kinetic theory would be called a(n)_____ gas?

The outermost electrons in an atom, which are involved in chemical bonding, are called ________electrons.

The ______ cubic arrangement of atoms in a crystal has the least empty space of any cubic arrangement.

Relatively strong force that exists between molecules that contain hydrogen covalently bonded to a highly electronegative atom.

Moderately strong force that exists between neighboring polar molecules due to the attraction of oppositely charged ends.

Weak force that exists between all molecules, both polar and nonpolar, due to the formation of instantaneous dipoles.

The strongest intermolecular force affecting the element iodine.

Balance the following equation: Fe(s) + O2 (g) ----------Fe2 O3(s)

Balance the following equation: NH 3 (g) + O2 (g) ------N2 (g) + H2 O(g)

Calculate the molar mass of benzene (C6H6).

Hydrogen and oxygen react with each other according to the equation 2 H2 (g) + O2 (g) -----2 H2 O2 (g). If 5.00 mol of O2 reacted with unlimited amount of hydrogen, what amount (in moles) of H2O will be produced?