Synthesis reactions are reactions that occur when two different atoms or molecules interact to form a different molecule or compound. Most of the time, when a synthesis reaction occurs, energy is released and the reaction is exothermic
<span>the rate decreases should be your answer</span>
It is the third one this is simple
The chemical formulae of the given compounds are as follows:
- Magnesium chloride: MgCl₂
- Aluminium chloride: AlCl₃
- Calcium oxide: CaO
- Calcium carbonate: CaCO₃
- Copper nitrate: Cu(NO₃)₂
<h3>Chemical formulae</h3>
A chemical formulae a set of chemical symbols showing the elements present in a compound and their relative proportions in that chemical compound.
The information provided by a chemical formula include:
- The atoms of elements present in the compound
- The ratio in which the elements are combined in the compound
- The state in which the compound occurs
The chemical formulae of the given compounds are as follows:
- Magnesium chloride: MgCl₂
- Aluminium chloride: AlCl₃
- Calcium oxide: CaO
- Calcium carbonate: CaCO₃
- Copper nitrate: Cu(NO₃)₂
Learn more about chemical formulae at: brainly.com/question/8007130
Answer is cccccccccccccccccccccccccccccccccccccccc
