When 0.75 L of hydrogen gas reacts with bromine gas, what volume of hydrogen bromide gas will be produced at STP? A small explanation would be nice too

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

The answer would be true