Question 2 of 10 Why is the average atomic mass used when calculating grams of a
substance?
A. The elements in the substance are mixtures of their isotopes.
B. The average atomic mass is known to more significant figures.
C. The number of isotopes in the sample is constantly changing.
D. The exact weights of the isotopes are not known.
SUBMIT

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!

Which factor is likely to impact the possible number of compounds ?

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these