Explain what the police siren sounds like to Jane. Explain what the police siren sounds like to John. Explain why the police siren sounds different between Jane and John.

Pb (BrO3) 2 is a ionic compound, covalent compound, or Acid

2.1 liters is the same as cm3 and ml

Change of state from a solid directly to a gas

How to refer to periodic table in order to predict the number of valence electrons?

What particles are used for artificial transmutations? A. beta particles and gamma rays B. protons, alpha particles, and beta particles C. protons, neutrons, and alpha particles

The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angles to one another that are not 90 degrees.

An aqueous solution at 25∘C has a hydronium ion concentration of 3.2*10-9 M. What is the hydroxide ion concentration of the solution? Write your answer in scientific notation. Use the multiplication symbol rather than the letter x in your answer.

What is the electron configuration of a sulfur atom in the ground state?

Unsaturated fatty acids are often classified according to the number of carbon atoms between the terminal methyl carbon (the omega carbon) and the closest double bond to the methyl end of the chain.

Suppose the average concentration of copper in water is measured to be 2.5 x 10" M. a. Express this concentration in mg/L. b. Express this concentration in ug/L. c.