For elements to have similar physical and chemical properties, what must be true about them?

Which gas diffuses faster at the same pressure and temperature co2 or co

What type of compound is the formula HBr? Covalent Compound Metallic Compound Ionic Compound

Find the sixth term of the binomial expansion of (a - b) 7.

Which layer has the most oxygen, silicon and aluminum?

Give the charge and full ground-state electron configuration of the monatomic ion most likely to be formed by each element. p a. p3â: 1s22s22p63s23p3 b. p4â: 1s22s22p63s1 c. p3â: 1s22s22p63s23p6 d. p4â: 1s22s22p63s23p64s1 e. none of these

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