When a bond is created how many valence electrons are needed to fill an octet?

If you have 7.4 moles of silver phosphate, how many grams do you have

Which compound has the bigger lattice energy? K Br CaBr2 o O Na, NaF Rb20 0 Rb, S 0

Separate samples of a solution of an unknown soluble ionic compound are treated with KCl, Na2SO4, and NaOH. A precipitate forms only when Na2SO4 is added. Which cations could be present in the unknown soluble ionic compound?

A mountainous region would be a likely source for nuclear or hydroelectric or wind energy

Which of the following is usually done last in the scientific method of investigation? A. Ask a question B. Test with an experiment C. Analyze data and draw conclusions D. Do background research and construct a hypothesis

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.

If I add water to oil what will happen

Commercial fertilizers, which are made by humans, are used to enrich soil for healthier crops. However, erosion may carry the fertilizer chemicals to the oceans. The presence of these chemicals may cause certain kinds of algae to reproduce rapidly.