Ca + Cl2 = CaCl₂
A synthesis <span>reaction.</span>
Answer:
Two
Explanation:
Lone pairs are electron pairs on an atom that resides only with one of the atoms in a molecule.
Dinitrogen pentaoxide is shown in the image attached. There are five oxygen atoms and two nitrogen atoms in the molecule. The molecule has a total of 40 valence electrons.
There are two electrons present on the central oxygen atom in the Lewis structure of dinitrogen pentaoxide as shown in the image attached.
When a specific amount of energy is emitted when excited electrons in an atom in a sample of an element return to the ground state, this emitted energy can
<span>be used to determine the "identity of the element".</span>
Cell membrane
Explanation:
The cell membrane is the part of a cell that has similar functions to the skin.
The skin is a protective covering round the body. It also helps in maintaining a dynamic balance between the environment and the body.
Cell membrane is found in both plants and animals. It is made up of rich phospholipid layers that protects the internal component of the cell. It also allows for selective permeability.
learn more:
Eukaryotic cells brainly.com/question/4493579
Cell organelles brainly.com/question/1494707
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