How many atoms of hydrogen does alcohol (2c2h6o) have?

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6

The temperature of a lead fishing weight rises from 26 °c to 38 °c as it absorbs 11.3 j of heat. what is the mass of the fishing weight in grams?