A chemical equation is shown: Na + H2O → NaOH + H2 According to the law of conservation of mass, how many atoms of hydrogen exist in the products of this reaction? (3 points) 2 3 4 6

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!

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false