как из Ca3(PO4)2 ПОЛУЧИТЬ CaSO4

Guess the key-word by the first letters of  the clue-words and write them dow.

1/ a hot season ________________

2/ your mother and father ________________

3/ a part of the day before the night_________________

4/ a part of your face you face you can smell with_______

5/ a pet that doesn~t like cats_________

keyword:___________________

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