Were do mummies live

In a laboratory experiment, when 35.0 g Mg reacted in excess O2, the percent yield of MgO was 90.0%. What was the actual yield of that experiment?

Which of the following Van der waals forces would have the most action among molecules of methane (CH4) ? A) Dipole-dipole B) ion-dipole C) london dispersion 2.

Which electron transition represents a gain of energy? A. from 2nd to 3rd shell B. from 2nd to 1st shell C. from 3rd to 2nd shell D. from 3rd to 1st shell

Compare the information provided by a molecules chemical formula to the information provided by its structural formula

Fossil fuels are not used as a good source of energy. True ) False

Not related to any subject but how do you tell someone you like them?

An aspirin tablet contains 75.0 mg of aspirin, which has the molecular formula, c9h8o4.

What are elements in the same row or period called

1. Physical geography examines the culture, political systems, social systems, economic systems, and characteristics of various peoples-why they eat certain foods, practice a chosen religion, or why they select a particular mode of transportation. A.

A gas has a pressure of 2.0 atm. If the temperature decreases from 250K to 125K and the volume remains constant, what will be the resulting pressure?