Atom : B
Cation : C
Anion : A
<h3>Further explanation</h3>
Given
Pictures for atom, anion, and cation
Required
Classification
Solution
Represent atom : Picture B
Number of protons = number of electrons = 6 = neutral atom
Represent cation : Picture C
Number of protons > number of electrons = 6>5 : charge +1(positive charge)
Represent anionn : Picture A
Number of protons < number of electrons = 5<6 : charge -19negative charge)
C
Immunization shots are given to ensure immunity against future attacks on the body against the disease in which the vaccine is made.
Explanation:
The vaccine prepares the body by giving immune cells memory against the disease agent. The vaccine achieves this by introducing an attenuated form of the agent of the disease into the body. This means the introduced disease agents cannot cause disease but are enough to evoke an immune response from the body. The immune system, after eradicating the attenuated disease agent from the body, acquires memory such that it fights a real-world disease agent in case of infection.
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Water is a polar molecule because of its shape
Option C: a true solution will not separate in a centrifuge.
A solution is said to be a true solution if the solute particles form homogeneous mixture with the solvent. In a homogeneous mixture, the size of the particle of solute is less than 1 nm, can not be seen from naked ice. In such solutions, the solute particles completely dissolves in solvent in all proportions and cannot settle down at bottom if kept at rest for some time.
As complete dissolution of solute takes place, there is no cloudy appearance in the true solution also, once the solution is formed solute and solvent particles can not be separated with simple processes such as heating, boiling and centrifugation.
For example, solution of sugar and water, sugar particles completely dissolve in water to form homogeneous mixture or true solution.
Therefore, a true solution will not separate in a centrifuge.
Answer:
The empirical formula is: C₂H₃O
Explanation:
The empirical formula, also known as the “minimum formula”, is the simplest expression to represent a chemical compound and indicates the elements that are present and the minimum integer ratio between its atoms.
The percentage composition is the percentage by mass of each of the elements present in a compound.
Having 100 g of the compound as a base, it is possible to express the percentages in grams. That is, assuming you have 100 g of the compound, you have 53.46 g of C
, 6.98 g of H
, and 39.56 g of O.
Taking into account the molecular mass of each substance, the number of relative atoms of each chemical element is calculated:
C: 
H:
O:
Now you divide each value obtained by the least of them:
C: 
H:
O:
Decimals approach the nearest integer, then:
C: 2
H: 3
O: 1
Therefore <u><em>the empirical formula is: C₂H₃O</em></u>
