There are different kinds of reactions. To name some, these are the synthesis reaction, decomposition reaction, single-replacement reaction, double-replacement reaction, combustion reaction, redox reaction, etc. For this type of reaction involving two reactants to yield only one product, <em>this is a synthesis reaction.</em>
<em>P₄ (s) + 6 Ca (s) --> 2 Ca₃P₂ (s)</em>
How to Tell Lewis Diagrams apart
Trigonal planar, Trigonal pyramid both have 3 things attached to them. Not 4. Tetrahedral is the only Lewis Diagram's center piece that has 4 things attached to it.
<em><u>Tetrahedral</u></em>: C with 4 Cl's attached.
<em><u>Trigonal Planar</u></em>: is flat. The element in the middle is generally a metal or an element from the Left side of the periodic table. There is never an isolated pair of electrons with Trigonal Planer shapes. Summary:
- The center element is a Metal on the left side of the periodic table.
- In your example, Boron is at the center of the drawing and it is in column 2 of the periodic table which makes it a metal.
- There are no isolated electron pairs
Trigonal Pyramid
- The two electrons are circled. These two are isolated and nothing is attacted to them.
- The central element is a non metal -- Nitrogen in this case.
- The non metal is on the RIGHT side of the periodic table
Bent
- Looks like it is in a straight line (but it is not).
- There are usually double bonds involved.
- The angle formed is usually greater than 90 degrees
- The central element is usually a non metal.
Problem One
Both parts of this question are correct.
For an ideal gas, the ideal gas equation can be used to relate the changes in the conditions of the system. The equation is expressed as:
PV = nRT
Therefore, the following are classified as:
P and T = directly proportional
V and n = directly proportional
T and V = <span>directly proportional</span>
P and V = inversely proportional
P and n = directly proportional
The number of atoms of Hg in 4.5 mole sample has been given as . Thus, option A is correct.
The number of atoms in a mole of sample has been given by Avogadro number. Avogadro number has been a constant and has been given the value of .
The number of atoms in a mole of sample has been given as:
The given sample has been consisted of 4.5 moles of Hg. Thus, the number of atoms in the sample has been given by:
The scientific notation has been the short hand used for writing the numbers. The short hand for atoms in 4.5 moles of Hg has been .
Thus, the number of atoms of Hg in 4.5 mole sample has been given as . Thus, option A is correct.
For more information about the number of atoms, refer to the link:
brainly.com/question/20672430
Answer: 15.3 carbon atoms