Which list includes elements with the most similar chemical properties?

A) Br, Ga, Hg

B) Cr, Pb, Xe

C) O, S, Se

D) N, O, F

The rate expression for a first order reaction could be A.) Rate=k[A] B.) Rate=k[A]^2[B] C.) Rate=k[A][B] D.) Rate=k[A]^2[B]^2

Why will heat travel faster in solids than in liquids

One difference between a chemical reaction and a nuclear reaction is that in a nuclear reaction: a) atoms retain their identity. b) only the valence electrons are involved. c) atoms often change from one element to another.

The reaction described in part a required 3.35 l of calcium chloride. what is the concentration of this calcium chloride solution

Which carbonate is most stable to heat? A. Sodium carbonate B. Copper (ii) carbonate C. Zinc carbonate

A scientist discovers a new type of polymer. What must be true about this polymer? A. It contains carbon atoms arranged in a ring structure. B. It has double bonds between all the carbon atoms. C. It contains molecules of many different types. D.

A line in the lyman series of hydrogen has a wavelength of 122 nm. from what state did the electron originate?

What are the products of photosynthesis? A. Glucose and oxygen B. Oxygen, solar energy, and glucose C. Carbon dioxide, water, and solar energy D. Hydrogen, oxygen, and carbon

A sample of a substance that has a density of 0.824 g/mL has a mass of 0.421 g. Calculate the volume of the sample.

The tyndall effect is used to detect A: suspensions B:liquid solitions C:tyndalls D:colloida