What is the mass number of an atom which is made up of 27 protons, 33 neutrons and 27 electrons?

If a journalist has to cut some information from an article, the best place to cut the article is A. in the lead sentence. B. in the background information. C. in the middle of the article. D. at the end of the article.

Powdered sulfur and iron filings are mixed together. What physical property could you use to separate them?

What is the property of a substance for ml

What is a conjugate base?

Propose a reason why very few 2 + ions are formed in a mass spectrometer

What do you need in order to do a stoichiometric calculation? (Choose multiple) Balanced Chemical Equation Molar masses of compounds involved The type of reaction taking place Oxidation Numbers

The correct mathematical expression for finding the molar solubility (s) of sn (oh) 2 is:

18. which bond is most polar? H--F H--Cl H--Br H--I

What kind of reaction is ca (s) + h3po4 (aq) ca3 (po4) 2 (s) + h2 (g)

In the teapot dome scandal, what did the secretary of the interior albert fall lease