Answer:
Solid liquids , plasma gas
Explanation:
It retains its shape regardless of the shape of the container
The correct answer is c. H3PO4 2H++ HPO42¯(Phosphoric acid)
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Phosphoric acid</h3>
Known also as ortho-phosphoric acid, phosphoric acid is a triprotic acid that occurs as a viscous liquid. It irritates or corrodes human skin, eyes, and other mucous membranes as well as those of experimental animals. However, the irritancy potential of its salts is much smaller. When mice were exposed through inhalation, moderate toxicity was seen. Both phosphate salts and phosphoric acid have been shown to enhance the action of recognized carcinogens, however phosphoric acid alone is neither genotoxic nor carcinogenic. Typically, irrigation or water flushing are used to treat exposures. As a food addition to different cola drinks, phosphoric acid has attracted a lot of attention but also generated a lot of debate due to its potential for negative effects.
Which chemical equation shows the dissociation of 2 protons from trihydrogen phosphate
(phosphoric acid)? (other substances / rxns can be used)
a. H3PO4 H2++ HPO4¯
b.H3PO4 H22+ + PO42¯
c. H3PO4 2H++ HPO42¯
d. H3PO4 H33+ + PO43¯
Learn more about Phosphoric acid here:
brainly.com/question/3700851
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When an atom has more neutrons in the nucleus than protons, it is said to be unstable. The benchmark element for this is Iron. Iron is the most stable in nature. Logically, elements lighter than Iron undergo nuclear fusion (combining), while elements heavier than ion undergo nuclear fission (breaking). These elements spontaneously decay by giving off sub-atomic particles.
U-238 means that the Uranium isotope contains 238 neutrons and protons. We know that the atomic number of Uranium is equal to 92. Therefore, the number of neutrons is: 238 - 92 = 146 neutrons. So, U-238 contains 92 protons and 146 neutrons. Similarly, Thorium-234 having an atomic number of 90 will have an amount of neutrons equal to: 234 - 90 = 144 neutrons. Let's compare the difference between U-238 and Th-234:
Protons: 92 → 90
Neutrons: 146 → 144
Therefore, for U-238 to transform to Th-234, it must give off 2 protons and 2 neutrons. This is a characteristic of alpha decay or alpha radiation. It gives off an alpha particle during nuclear fission. An alpha particle is simply a Helium atom, which contains 2 protons and 2 neutrons.
