Which diagram below represents the following reaction at equilibrium? A2 + B2 ⇌ 2 AB Kc=4

Pls help, I will give brainliest!

What metric units would you use to measure the thickness of a key

Draw the structure for 5-isopropyl-2-methyl-3-nonene

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?