The molar mass of a crystalline compound is 320 g/mol. If it contains 45% of water of crystallization, (Given: molar mass of water = 18g/mol), the number of molecules of water of crystallization?​

50 pts plz what is the physical state of matter of baking soda.

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?