Chemistry, asked by iamtheone79, 1 year ago

hey please can anyone tell me that
in formula making how can we get the valency of for example So4 in
2Na + H2So4➡Na2So4
so how can we know that we have to put 2Na if we dont know the formula and are suddenly asked to write the formula of Sodium sulphate???
please help me with this

Answers

Answered by ut112002

can you explain the question more briefly

iamtheone79: hey hey listen

iamtheone79: i wanna say that like if we have to write 3Ca + H2So4➡Ca3 (So4)2.... in this equation we know that valency of Calcium is 2 that's why So4 is twice but how do we know that valency of So4 is 3 so that there are 3 calcium atoms?????

iamtheone79: hey listen please help me fast bro cause I've got really important test tomorrow

iamtheone79: please

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hey please can anyone tell me that in formula making how can we get the valency of for example So4 in2Na + H2So4➡Na2So4so how can we know that we have to put 2Na if we dont know the formula and are suddenly asked to write the formula of Sodium sulphate???please help me with this

Answers

hey please can anyone tell me that
in formula making how can we get the valency of for example So4 in
2Na + H2So4➡Na2So4
so how can we know that we have to put 2Na if we dont know the formula and are suddenly asked to write the formula of Sodium sulphate???
please help me with this