Pl

why is radon-222 considered dangerous?

it is the second leading cause of lung cancer in the u. s.

it cannot be seen, smelled, or tasted.

it is a product of the natural decay of uranium and is often found in the soil on which houses are built.

all of these

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

What is the correct lewis structure for chloroform chcl3

The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as