Questions asked by alaa
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41) A compound that is composed of carbon, hydrogen, and oxygen contains 70.6% C, 5.9% H, and 23.5% O by mass. The molecular weight of the compound is 136 amu. What is the molecular formula?
The concentration of urea in a solution prepared by dissolving 16 g of urea in 39 g of is __________% by mass. The molar mass of urea is 60.0 g/mol??
Write an inequality to describe the situation. Do not solve.
carols paid less than $850 including $45 for shipping and 4% sales tax when he bought his new computer. Let represent the price of the computer?
What is the equation in standard forms using only integers?