We can only see things if they give off light but be we use other senses to gather information about things we cannot see.
Explanation:
1. Thermochemical equation is balance stoichiometric chemical equation written with the phases of the reactants and products in the brackets along with the enthalpy change of the reaction.
The given correct thermochemical reactions are:


2. Phase change affect the value of the enthalpy change of the thermochemical equation. This is because change in phase is accompanied by change in energy. For example:


In both reaction phase of water is changing with change in energy of enthalpy of reaction.
No, Matter cannot be created nor deastroyed.
It’s deceleration hope that helps!
Answer: I think the answer is C. NaCl and H2O
Explanation: I’m not sure tho