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Calculate the empirical formula when a sample contains 1.2 g of Nitrogen and 1.4 g of Oxygenmolar mass of ( O = 16.00 g, N = 14.0 g)

In a butane lighter, 1 mol of butane (C4H10) burns with excess O2. The relevant chemical reaction is given below. How many moles of water will be produced in this reaction2C4H10 + 13O2 = 8CO2 + 10H2O

What is the electronic geometry of the H2O molecule? (not molecular geometry)

The clinical hallmark of myasthenia gravis is ________________?

Many years ago, the Aluminum Company of America owned almost all sources of the ore (bauxite) needed to produce aluminum. This is an example of market power arising from:

(Figure: Utility and Income) Suppose that Sara has an income of $80,000, but if her business burns down, her income drops to $20,000.     Sara’s expected income is $_____.

(Table: Payback Period)   Year Cost ($) Benefit ($) 0 5,000 0 1 0 1,000 2 0 2,000 3 0 2,000 4 0 3,000 The payback period on this investment is _____ years.

If a principal is invested at a constant interest rate, the value of the account will increase at a(n) _____ rate over time.

A simultaneous game requires that:

How many trainees can be on a jobsite under the supervision of a licensed tech or manager?