Groups 13 through 18 are the constitute p-block
Answer:
State of matter is defined as a form in which matter can exist. There are four states of matter known till date. They are as follows:
Solid: Matter is said to be in solid state if it has definite shape and volume. The components of matter are closely packed and have fixed positions within the matter.
Liquid: In liquid state, matter has fixed volume but shape is not fixed, it takes the shape of container in which it is placed. The particles of liquid are close but can move freely or do not have fixed positions.
Gas: Matter in gaseous state has variable volume and shape. The particles of gas are very far from each other thus, they are in constant motion without any fixed position..
Plasma: This state of matter has variable shape and volume. It has neutral atoms, the number of ions and electrons are significant and can move freely in the matter. In order to make plasma, energy is required to strip electron from atom.
According to above definitions, the state of matter is matched with the given statements as follows:
Plasma-Particles are so hot that electrons are stripped from atoms.
Gas-It expands to fill the volume of the container.
Liquid-Particles move past each other freely but do not go fat apart.
Solid-It retains its shape regardless of the shape of the container.
Explanation:
I choose this because It understands how each plasma work.
Answer:
Mole fraction of hexane in your sample is 0,746
Explanation:
Based on the information you can write the following equations:
X + Y = 1 <em>(1)</em>
Where X is mole fraction of hecane and Y is mole fraction of toluene
Also, based on the assumption that the refractive index of the hexane + toluene mixture varies linearly with mole fraction you can write:
1,375X + 1497Y = 1406 <em>(2)</em>
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Replacing (1) in (2):
1,375X + 1,497(1-X) = 1,406
1,375X - 1,497X + 1,497 = 1,406
-0,122X = -0,091
X = -0,091/-0,122
X = 0,746
Thus, the <em>mole fraction of hexane in your sample is 0,746</em>
Also you can know the mole fraction of toluene replacing this value in (1):
0,746 - Y = 1
Y = 1-0,746
Y = 0,254
I hope it helps!
Answer: electron on the shell of the atom
Explanation: that what I trying to remember
Answer: Baking soda
Explanation:
Sodium bicarbonate has a chemical formula of NaHCO3, it is a white precipitate formed when excess carbon dioxide is bubbled through a concentrated solution of sodium hydroxide.
It is used in cooking and serves as baking powder.
