Write down any two test for the CH2=CH2[ethene]​

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

What is the lowest number energy level where a d sublevel is found

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?