Which can associate a suspect and the firing of a gun?

(its not b)

A) markings on the gun's exterior

B) markings on the casing

C) markings on the bullet

D) powder residues

A compound consists of 17.6% of hydrogen and 82.4% nitrogen. Determine the empirical formula of the compound

Give and example of a group and n such that the set of elements whos nth power is e do not form a subgroup

How many molecules are in 2.10 mol co2?

What is true about cellular respiration? Cellular respiration is an exothermic physical change. Cellular respiration is an endothermic physical change. Cellular respiration is an exothermic chemical reaction.

An alpha particle is identical to a:

What is the lowest possible value of n for a d atomic orbital?

List the following bonds in order of increasing ionic character: CsF, ClCl, BrCl, SiC

Characterize the size of an atom

How does th composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and oxygen?

When 189.6 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed? C2H4 (g) + O2 (g) → CO2 (g) + H2O (g) (unbalanced)