If you were to replace the helium in a balloon with less dense hydrogen, does the buoyant force on the balloon go up, down or remain the same?

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?

At element makes up all organic compounds?

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted