Answer:
Explanation:
The chemical equation is:
There are several definitions of acid and bases: Arrhenius', Bronsted-Lowry's and Lewis'.
Bronsted-Lowry model defines and <em>acid</em> as a donor of protons, H⁺.
In the given equation HNO₃ is such substance: it releases an donates its hdyrogen to form the H₃O⁺ ion.
On the other hand, a <em>base</em> is a substance that accepts protons.
In the reaction shown, H₂O accepts the proton from HNO₃ to form H₃O⁺.
Thus, H₂O is a base.
In turn, on the reactant sides the substances can be classified as acids or bases.
H₃O⁺ contain an hydrogen that can be donated and form H₂O; thus, it is an acid (the conjugated acid), and NO₃⁻ can accept a proton to form HNO₃; thus it is a base (the conjugated base).
Answer:
equinox
greatest
gravity
penumbra
solar
Earth's atmosphere refracts sunlight toward the moon when the moon passes through the umbra. The atmosphere scatters blue light from the sun, but red light is refracted and bent toward the moon.
Explanation:
Answer:
As for what is written, I think that your wording is incomplete, since valine (abbreviated Val or V) is one of the twenty amino acids encoded by DNA on Earth, whose chemical formula is HO2CCH (NH2) CH (CH3) 2. In messenger RNA, it is encoded by GUA, GUG, GUU or GUC. Nutritionally, in humans, it is one of the essential amino acids.
Explanation:
Being an essential amino acid, it speaks of the fact that the organism does not synthesize it, therefore it must be ingested in the daily diet as well as in foods rich in proteins: red meat, chicken, fish, eggs, grains and nuts.
Answer:
Most atoms do not have eight electrons in their valence electron shell. Some atoms have only a few electrons in their outer shell, while some atoms lack only one or two electrons to have an octet. In cases where an atom has three or fewer valence electrons, the atom may lose those valence electrons quite easily until what remains is a lower shell that contains an octet. Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.
Explanation:
yan na answer
It is 14, plug it in or use inverse equations. Since they're vertical angles they are the same value. 41 = 2x+13, 28 = 2x (subtract 13), 14 = x (divide by 2).
