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 law of conservation of mass in science states that mass can neither be created nor destroyed.
In a closed system, the law of conservation of mass is obeyed. Hence, when we react hydrogen and oxygen in a closed system, the total mass of the system stays the same in accordance with the law of conservation of mass.
