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balu736 [363]
3 years ago
5

AgI + Na2S = Ag2S + NaI​

Chemistry
2 answers:
Lelu [443]3 years ago
6 0

2Agl + 1Na2S----->1 Ag2S + 2Nal

This may help

lozanna [386]3 years ago
3 0

Want me to balance it? Lol

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How do I find the number of electrons in an Isotope? For example, I know that in the image attached the isotope has 45 protons a
vova2212 [387]

Answer:

The answer to your question is: 45 electrons

Explanation:

Isotopes are molecules that have the same number of protons but the number of neutrons is different.

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3 years ago
The atomic number of an element:
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Answer:The atomic number (represented by the letter Z) of an element is the number of protons in the nucleus of each atom of that element. An atom can be classified as a particular element based solely on its atomic number. For example, any atom with an atomic number of 8 (its nucleus contains 8 protons) is an oxygen atom, and any atom with a different number of protons would be a different element. The periodic table (see figure below) displays all of the known elements and is arranged in order of increasing atomic number. In this table, an element's atomic number is indicated above the elemental symbol. Hydrogen, at the upper left of the table, has an atomic number of 1. Every hydrogen atom has one proton in its nucleus. Next on the table is helium, whose atoms have two protons in the nucleus. Lithium atoms have three protons, beryllium atoms have four, and so on.

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2 years ago
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What is the pH at the half-equivalence point in the titration of a weak base with a strong acid? The pKb of the weak base is 7.9
ValentinkaMS [17]

Hey there!

Given the reaction:

B + H⁺   => HB⁺


At half-equivalence point :  [B] = [HB⁺]

=> [B] / [HB⁺] = 1

Henderson-Hasselbalch equation :


pH = pKa + log ( [B] ) / ( HB⁺)]

pH = 14 - pKb + log ( 1 )

pH = 14 -  7.95 + 0

pH = 6.05


Answer C


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