If the change in concentration of a reactant has no effect on the initial rate of reaction, the order of the reaction with respect to that reactant is:

A) 0
B) 1
C) 2
D) unknown

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

Modern weaponry has increased the number of deaths in wars and violent conflicts.

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5