Calculate the mole fraction of total ions in an aqueous solution prepared by dissolving 0.400 moles of mgcl2 in 850.0 g of water.

You are running a rather large scale reaction where you prepare the grignard reagent phenylmagnesium bromide by reacting 210.14 grams of magnesium with 772 ml of bromobenzene.

Use the periodic table in the tools bar to answer these questions. How many moles of AgNO3 are present in 1.50 L of a 0.050 M solution?

What type of matter is copper

How would a fast-flowing river be most likely to move sand-sized particles of sediment? How would a fast-flowing river be most likely to move sand-sized particles of sediment? a. It would lift them and carry them downstream. b.

Transition metals tend to A. form cations B. lose electrons from the ns subshell first C. form more than one ion D. all of the above

What can show the presence of carbon dioxide?

How does the shape of a structure affect its overall strength

Kim is doing an experiment with sound waves. She tested to see how quickly a sound wave could travel through three different materials: a metal pole, a helium balloon and a glass of water. She recorded her results.

Which of the following is an example of an electric force that occurs in atoms

5. What is another name for Newton's first law in your own words.