Answer:
A circle graph, or a pie chart, is used to visualize information and data. A circle graph is usually used to easily show the results of an investigation in a proportional manner. Bar graphs are used to compare things between different groups or to track changes over time. However, when trying to measure change over time, bar graphs are best when the changes are larger.
Explanation:
In short, bar graphs are better to keep track of data over long periods of time, and circle graphs are better when you are trying to visualize a specific set of data.
Answer:
There is a lot of empty space between them.
Explanation:
The kinetic molecular theory postulates that a substance is made up of tiny particles called molecules. The molecules of a gas are in constant random motion and collide elastically with each other. They also collide with the walls of the container.
The magnitude of intermolecular forces of attraction between gas molecules is very small. Hence gas molecules are largely apart with a lot of empty space between gas molecules.
Answer:
NaS is ionic compounds that's why it is polar.
Explanation:
Ionic bond:
It is the bond which is formed by the transfer of electron from one atom to the atom of another element.
Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.
For example:
Sodium sulfide is ionic compound. The electronegativity of sulfur is 2.58 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the sulfur. Sodium becomes positive and sulfur becomes negative ion. There are electrostatic fores present between bonded atoms and molecule becomes polar.
Crust
Core
Explanation:
For any terrestrial planet, the crust would be the coolest layer and the core would be the hottest layer.
Terrestrial planets or the inner planets made up rocky balls. They have layers that are differentiated.
Typically, they are made up of crust, mantle and the core.
The crust is the outermost layer.
The mantle is the middle layer and core is the inner most layer.
These planets are Mercury, Venus, Earth and Mars.
The outermost layer is usually the coldest part.
The innermost layer is the hottest part which is the core
learn more:
Crust of the earth brainly.com/question/10537829
#learnwithBrainly
