4.3gram of (vi)(Na2So4.xH2O) was heated to remove the water of crystallization. The remaining are hydrous salt had a mass of 2.12gram. Calculate the value of x in the salt(Na=23, S=32, O=16, H=1)

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Define a is a tiny pavket of energy

Which activity is an innate behavior