Answer:
A calorimeter is a device used to measure the heat flow of a chemical reaction or physical change. The process of measuring this heat is called calorimetry. A basic calorimeter consists of a metal container of water above a combustion chamber,
Explanation:
The correct answers are
-formation of a precipitate
-bubble formation
-color change
-temperature change
-odor formation
The only one that isn’t correct is change in state of matter. A change in a state of matter does not mean it’s a chemical change. For example, water boiling so it turns into gas is not a chemical change, and is a physical one. Also, water can freeze and turn into ice, which is also still a physical change. If something changes state of matter, it does not necessarily mean it’s a chemical change.
The compound formed when nitrogen combines with hydrogen is ammonia.
A chemical reaction is said to have occurred when two elements combine according to a given reaction equation.
In this case, Sanju wants to combine nitrogen and hydrogen. The reaction takes place according to the equation;
N2 + 3H2 ----> 2NH3
The product formed in the reaction is ammonia.
Learn more: brainly.com/question/13440572
I think it is the first option!