What refinements had to be made in dalton's atomic theory to account for gay-lussac's results on the combining volumes of gases?

Dalton theory is based on atomic theory and now is known as formula weight whereas Gay-Lussac measured the volume of the gases.

Now, Dalton verified the law of multiple proportions theory but he was not able to state the change in volume from 4 to 2 in case of nitrogen and hydrogen (at constant temperature and pressure) whereas Gay-Lussac verified the results and prepared gases theory by combining volumes of gases.

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.