Describe one advantage and one disadvantage of replacing standard bulbs with led lighting

The most common source of copper (cu) is the mineral chalcopyrite (cufes2). how many kilograms of chalcopyrite must be mined to obtain 370. g of pure cu?

A cr3 + (aq) solution is electrolyzed using a current of 7.40 a. what mass of cr (s) is plated out after 1.85 days?

Does the bowling ball have more potential energy or kinetic energy just before it hits the ground? Why?

Acids and bases can neutralize each other in double displacement reactions. For example, if hydrogen chloride (a strong acid, HCl) is mixed with sodium hydroxide (a strong base, NaOH), the products are water, H2O, and salt, NaCl.

In a river, long boulders are transporting by

Predict at least two circumstances (outside influences) that would cause a system in equilibrium to change the concentrations of its reactants or products.,

How many atoms are there in 2.3 grams of H?

Which of the following would dissolve in water, and why? None of these substances would dissolve in water Candle wax, it is a nonpolar substance Motor oil, its primary IMF is London Dispersion Forces Acetic acid, it ionizes into ions when added to

Have a region surrounding the central area called

1. Simplify. | A. O 16 B. O C. 04 D. O