C3H8 + 5O2 —> 3CO2 + 4H2O How many grams of oxygen are needed to burn 5.0 moles of C3H8?
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Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull