Answer:
an article or substance that is manufactured or refined for sale. or a thing or person that is the result of an action or process.
Explanation:
The correct answer to this open question is the following.
Two examples of how engineers use their knowledge of atoms to create new technologies would be the following.
1.- Engineers can develop new medicines for chronic diseases when they use their knowledge about atoms. With new technologies and different scientific approaches, this new molecular medicine can be more effective in the treatment of terrible diseases that affect humans. The challenge lies in how to make these new medicines more affordable to all kinds of people, not only rich people.
2.- Engineers can also apply their knowledge about atoms to improve the water conditions so more people can have freshwater. Engineers that specialize in the environment can research the properties of water molecules and atoms, so they can develop new ways to purify and improve the quality of water, that we know that water scarcity is a major problem in many parts of the world.
Answer:
A <u>tetraquark</u> in physics is an <u><em>exotic meson composed of four valence quarks</em></u>.
Explanation:
It has been suspected to be allowed by <u><em>quantum chromodynamics</em></u>, the modern story of strong interactions.
Hope it helps.
100.4 degree celsius is the temperature of the water having non-electrolyte.
The correct answer is b.
Explanation:
Data given:
mass of non-electrolyte solute = 31.65 grams
volume of water = 220 ml or 0.22 litres
molar mass of solute = 180.18 grams/mole
density of water = 1 gm/mole
Boiling point of water = 100 degrees celsius
molality = ?
Kb for water = 0.51
boiling point elevation or temperature of hot water,T =?
Formula used:
T = mKb equation 1
number of moles of non electrolyte = ![\frac{31.65}{180.18}](https://tex.z-dn.net/?f=%5Cfrac%7B31.65%7D%7B180.18%7D)
number of moles = 0.17 moles
molality = ![\frac{0.17}{0.22}](https://tex.z-dn.net/?f=%5Cfrac%7B0.17%7D%7B0.22%7D)
molality = 0.77 M
putting the values in equation 1
T = 0.77 X 0.51
T = 0.392 degree celsius. is the elevation in temperature when solute is added.
Temperature of the hot water = 100 +0.392
= 100.392 degree celsius.