The diagram below shows the reaction of oxygen gas and hydrogen gas to form water. The chemical reaction shown above takes place in a closed system. What is true about the system while the reaction occurs? A. The total mass of the system stays the same. B. The mass of the oxygen atoms increases. C. The mass of the hydrogen atoms decreases. D. The total mass of the system increases.

The literature of nineteenth-century realism depicted everyday life in a realistic way. which statements show that leo tolstoy’s the death of ivan ilyich is a realist text? the description of human struggles in the form of ivan ilyich’s suffering the faithfulness of relationships that ivan ilyich experiences toward the end of his life the romantic tension that occurs between ivan ilyich and his wife the difference between superficial and authentic living the plot ending with a surprising turn of events