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Questions in chemistry

📝 Answered - How do electrons behave when metals react with non-metals?

📝 Answered - In a chemical reaction, dynamic equilibrium occurs when the rate of the forward reaction becomes precisely equal to the rate of the reverse reaction. All of the following statements are true EXCEPT: A. A dynamic equilibrium occurs when the reaction is more than 50 percent complete. B. In a dynamic equilibrium, reactants are converted to products at the same rate as products become reactants. C. Reactions that reach a dynamic equilibrium are often referred to as reversible reactions. D. Reactions that reach a dynamic equilibrium are shown with a double arrow, to indicate the forward and reverse reactions. E. Reactions that reach equilibrium very close to the end (product side) are usually shown with only one arrow instead of a double arrow, and we say the reaction goes to completion.

📝 Answered - What's the formula for distance?

📝 Answered - If 3.64g of sand is separated from 5.25g of a mixture of salt and sand, what is the percentage of sand in the sample?

📝 Answered - If a chemist analyzes a 3.84g sample containing sand and table sugar, and recovers 1.43g of sand, what percent by mass of table sugar should the chemist report for this sample?

📝 Answered - Convert 1.00 atm of pressure to its equivalent in millimeters of mercury.

📝 Answered - Imagine you are a driver. If the driver travels to England for 13 hours and then flies to Indonesia for 2 hours, how old is the driver?

📝 Answered - What equipment and "clothing" would be needed to explore the planet Uranus?

📝 Answered - Very few fossils of jellyfish or their close relatives have been found. This makes it hard to trace the evolutionary history of jellyfish using the fossil record. What explains this?

📝 Answered - Which of the following molecules is nonpolar? A. CO B. NO C. AlCl₃ D. SO₂