Question

Which chemical formula is which? synthesis, decomposition, replacement
a. 1 P4 + 3 O2 --> 2 P2O3
b. 1 CF4 + 2 Br2 --> 1 CBr4 + 2 F2
c. 2HgO --> 2Hg + O2

Answer 1

In synthesis reactions you join 2 (or more) things together into one, making something new. They have the form: A + B -> C

Decomposition reactions is the opposite, one thing breaks apart (normally when you apply heat). It has the form: C -> A + B

In displacement reactions there are "exchanges" of groups or atoms.

It can have this form: AB + C -> AC + B (single displacement)

or this form: AB + CD -> AD + AC (double displacement)

Answer 2

Synthesis means that two compounds combine together to form one, so thats A

Decomposition means that a compound breaks down to form two simpler compounds and or elements so that is C

Single Displacement reactions occur when a more reactive metal is combining with a compound with a less reactive metal, and thus the more reactive metal displaces the least reactive metal. so that is B

E.G. A + BC ---> AC + B, if A is more reactive than B

Answer 3

thanks for medal :)