What is Ca2SO7? Important knowledge about Ca2SO7.

1.1.1 Ca₂SO₇ is commonly known as Calcium Sulfate.
1.1.2 In English, it is called Calcium Sulfate.
1.2. The molar mass of Calcium Sulfate is 136.14 g/mol.
1.3. The atomic mass of Calcium, Sulfur and Oxygen are 40.08, 32.06 and 16.00 g/mol respectively.
1.3.1 The molecular structure of Ca₂SO₇ consists of 2 atoms of Calcium, 1 atom of Sulfur and 7 atoms of Oxygen.
1.4 The ionic structure of Calcium Sulfate consists of 2 Ca₂+ ions and 1 SO₂- ion.

2.1 Physical properties of Ca₂SO₇:

• State: solid.
• Color: white.
• Odor: odorless.
• pH: neutral.
  2.2 Chemical properties of Ca₂SO₇: Does not react with water, insoluble in dilute acid.

3. Common chemical equations for Ca₂SO₇:

   • Metal reactions: does not react with metals.
   • Acid reactions: does not react with dilute acid.
   • Non-metal reactions: does not react with non-metals.
   • Reaction with salts: does not react with salts.

4. Preparation of Ca₂SO₇:
   4.1 Laboratory preparation of Ca₂SO₇: cannot be prepared in the laboratory.
   4.2 Industrial preparation of Ca₂SO₇: by-product in the manufacture of cement, by burning limestone with sulfur or sulfur compounds.