What is the empirical formula of compound that is 64,8%,13,6%H and 21,6% O by mass?​

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure