The electron configuration 1sÆ 2sÆ2pÒ 3sÆ3pÒ represents which noble gas?

A solution is made by mixing 31 g of heptane C7H16 and 42 g of chloroform CHCl3. Calculate the mole fraction of heptane in this solution. Round your answer to 2 significant digits.

What is the geometry of the central carbon atom of a tert-butyl radical?

What is the molecular formula of a substance that decomposes into 1.33 g of h and 21.3 g of o, and was found to have a molar mass of 34.1 g?

What is an ionic bond? How is an ionic bond done?

In most areas of Ohio the frost-free growing season is 150 to 180 days. Farms close to Lake Erie have a growing season closer to 200 days. Explain why this is while correctly relating your answer to specific heat.

Distinguish between a carbohydrate and a protein

5. Noble gases, the elements in group 18 of the periodic table, do not react easily with other elements. Explain why you think they are not very reactive.

Which elements in the periodic table are metalloids or have semimetallic properties? A) N and Br B) As only C) Br only

How is 6.3 written in scientific notation

Is it possible for the overall charge of an ionic compound to be - 1. true false