PLEASE HELP ME WITH THIS QUESTION magnesium chloride crystallizes as a hydrate, MgCl2. xH20. When 20.3g of the hydrate were heated to a constant mass, 9.5g of the anhydrous salt remained as shown by the equation below. MgCl2.xH20 -> MgCl2 + xH2O, find x​

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?