Cho 10gam amin đơn chức X (CxHyN) phản ứng hoàn toàn với HCl (dư), thu được 15gam muối. Số đồng phân cấu tạo của X?

that tool would be a compass

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but