Why is a catalyst shown above the arrow between the reactants and the products

Use the tabulated half-cell potentials to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C. 2Al (s) + 3Mg2 + (aq) ® 2 Al3 + (aq) + 3Mg (s)

Before applying the corkscrew, Lucas discovers a bit of mold on the cork of a bottle of Pinot Noir. Lucas should A. ignore the mold and uncork the wine. B. wipe off the mold with a clean napkin. C. return the bottle to the kitchen. D.

Which describes a chemical reaction? A. Raw eggs are fried in a pan B. Raw eggs are scrambled with a fork C. Raw eggs are placed in a refrigerator D. Raw eggs are collected from a chicken coop

Is an oreo a pure substance or a mixture and why?

In isotope sodium-25, what are the atomic number, number of protons, electrons, and neutrons?

You cut a piece of paper into small pieces is this a physical or chemical change? Explain

Millikan measured the quantity of charge carried by an electron. How did he then calculate the mass of an electron?

What is the Mole ratio between Fe and Fe2o3

Determine the molarity of 50 mL of HCl solution with unknown concentration, titrated with 75 mL of 4.0 M NaOH.

The host for this disease is the mosquito. Question 4 options: malaria HIV cholera small pox