Water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.
<h3>How are the water molecules composed?</h3>
This class of molecules that have a distribution of charges are called polar and, consequently, form bonds called hydrogen bonds with other molecules.
These molecules have a permanent dipole moment, that is, they have a structure called dipolar (two poles), this arrangement gives water great power to dissolve substances within it.
Therefore, we can conclude that water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.
Learn more about water molecules here: brainly.com/question/12730171
<span>the income and size of a family is used to determine: C. Poverty Level.
The threshold for the poverty level will be depended on the total income compared to the amount of children that the family has.
This data will be later used to determine which families are eligible to get government Aid.</span>
In this exercise we have to observe the axes of the graph to associate the values of X with those of Y that correspond to 0, 5, 5, -3, -5, -3, 2, 0, 0, -1, -2, 1, 1, -1, -1, -2, 2, 3, -1.
<h3>How to calculate the Cartesian plane?</h3>
Just draw two lines: one of them vertical, starting from the point until it finds the x axis; another horizontal, starting from the point until it meets the y-axis.
Then plotting the value of X on the graph we find the following for each value of X to Y:
- X= 0 ; Y= 0;
- X= 1 ; Y= 5;
- X= 2 ; Y= 5;
- X= 3 ; Y= -3;
- X= 4 ; Y= -5;
- X= 5 ; Y= -3;
- X= 6 ; Y= 2;
- X= 7 ; Y= 0;
- X= 8 ; Y= 0;
- X= 9 ; Y= -1;
- X= 10 ; Y= -2;
- X= 11 ; Y= 1;
- X= 12 ; Y= 1;
- X= 13 ; Y= -1;
- X= 14 ; Y= -1;
- X= 15 ; Y= -2;
- X= 16 ; Y= 2;
- X= 17 ; Y= 3;
- X= 18 ; Y= -1;
See more about coordinates at brainly.com/question/23450276
The element that you will need to board the plane is la tarjeta de embarque.
<h3>What elements are necessary to board a plane?</h3>
To board a plane you will need to have:
- The boarding pass.
- An identification document.
In Spanish, these same elements are:
- Tarjeta de embarque.
- Documento de identidad.
<h3>What elements are not necessary?</h3>
Some elements that are not mandatory include:
- A driver's license (Licencia de conducción).
- Luggage (Maleta o equipaje).
- Food (Comida).
- Among Others.
Note: This question is incomplete; here is the missing section:
Which of the following do you need to board a plane? (1 point)
- El equipaje
- La maleta
- El agente de viajes
- La tarjeta de embarque
Learn more about Spanish in: brainly.com/question/1577820