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

What property of an atom determines its general reactivity

What is the wavelength of a light that has a frequency of 5.00x10 to the 12 power s negative 1 power

Based on the activity series, which metals could X represent in the reaction below? (Note: The equation is not balanced.) X + MgSO4 - > Mg + XSO4 A) Sr B) Al C) Sn D) Au

Which of the following elements will gain electrons to form an ion? Ne Zn Ca F select all that apply

Which of the following is a step in the conversion of 2.5 hm3 to L? 1 cm/10^2 m) ^3 (1 hm/10^-2 m) ^3 10^-3 L/mL (1 mL/1 cm^3) ^3

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide

Which stament best describes a solution

Which answer accurately describes the difference between speed and velocity? Read each answer choice carefully. Question 4 options: A. If speed is constant, then velocity is also constant. B. Speed requires direction.

Least reactive element of period 3