Answer:
it is an exothermic reaction
Explanation:
exothermic reactions have a negative ∆H
i.e, product of the reaction is less that the reactants of the reaction
(Note : ∆H= products - reactants), that's why it's exothermic
Answer:
I think the answer is A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.
Explanation:
I hope this helps.
When two or more atoms chemically bond together, they form a molecule (O3). When atoms of at least two different elements come together to form chemical bonds, these molecules can be called compounds (NaCl). A pure substance consists of a single element or compound. For example, Iron is formed only of Iron (Fe) atoms; table salt is formed only by sodium chloride (NaCl) molecules.
