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Umnica [9.8K]
4 years ago
11

Which statement correctly describes a chemical reaction?

Biology
2 answers:
xz_007 [3.2K]4 years ago
6 0

Answer:  Bonds between atoms break and new bonds form.

Explanation:

Bonds between atoms break and new bonds form. Chemical reaction is the rearrangement of atoms to form new substances. The bonds in the reactants first break so that atoms may be free to rearrange and form new bonds resulting in the products.

Oksana_A [137]4 years ago
5 0
The best answer is 3


Bonds are made of energy. There are certain energy changes that occur during the making or breaking of bonds and this is called enthalpy changes. When a bod is broke, energy is required to break the bond, hence energy is taken in or absorbed when bonds are broken. This makes bond breaking an endothermic process.
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Terms matched with the right definitions.  

1. An organism that can make its own food – Autotroph

2. A symbiotic relationship between two organisms in which one species benefits and no effect is apparent to the other species – Commensalism.  

3. A cell that has a membrane-bound nucleus and/or organelles as its major characteristic -Eukaryote.  

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An autotroph is an organism that produces its own food from simple substances available in its environment. Autotrophs usually use inorganic chemical reactions or light energy in producing their food and are usually the producers in a food chain. Examples of autotrophs are plants and algae.


Commensalism is a type of relationship between organisms of two species where one organism benefits from the relationship and the other organism is not affected by it (neither benefits nor harmed).



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