Answer:
Ammonia has 4 regions of electron density around the central nitrogen atom (3 bonds and one lone pair). These are arranged in a tetrahedral shape. The resulting molecular shape is trigonal pyramidal with H-N-H angles of 106.7°.
Explanation:
Answer:
Increasing
Explanation:
It consists of a single element or compound.
It may have substances in different states of matter.
It is very difficult to separate the components.
The proportion of the particles that make it up cannot be altered.
Answer:
B
Explanation:
It may have substances in different states of matter
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(2) radium-226 (4) thorium-232
Answer: Option (1) is the correct answer.
Explanation:
A positron is represent by the symbol .
For example,
The decay reaction is as follows.
The reaction will be as follows.
Therefore, we can conclude that out of the given options positrons are spontaneously emitted from the nuclei of potassium-37.
Another name for cytosol is cytoplasmic matrix. This fluid can be found inside cells. It has to do with how the cell's organelles are held in suspension.
Numerous crucial metabolic processes occur in the cytosol, which also serves as a conduit for the movement of chemicals and ions throughout the cell. It offers a dynamic setting that supports the cellular machinery and enhances the cell's overall functionality. The term "cytoplasmic matrix" refers to the fluid-like substance (cytosol) that provides the cytoplasmic organelles and molecules with their structural support.
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