Which of the following atoms are isotopes of each other? (1) An atom with 17 protons and 18 neutrons

(II) An atom with atomic number 16 and atomic mass 32

(III) An atom with atomic number 15 and atomic mass 32

(IV) An atom with 17 protons and 20 neutrons

A. I and II

B. II and III

C. III and IV

D. I and IV

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 substance can be broken down by chemical means

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?