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Karo-lina-s [1.5K]
4 years ago
11

Show me an atomic chart for isotope Ni-54

Chemistry
1 answer:
12345 [234]4 years ago
8 0
The atomic symbol for Ni-54 is _{28}  ^{26} Ni.

Ni has atomic number 28, so the atomic symbol is _{28} ^{26} Ni.
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What does zero to the power of zero equal and why?​
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Answer:

Zero to the power of zero, denoted by 00, is a mathematical expression with no agreed-upon value. The most common possibilities are 1 or leaving the expression undefined, with justifications existing for each, depending on context

Explanation:

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( copper is Cu) How many Copper atoms in 3CuSO 4<br><br> Need help ASAP !!!!!
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16. The three major types of volcanoes are
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6 0
3 years ago
The amount of calcium hydroxide needed to react completely with 100.0g of nitric acid
Pani-rosa [81]

The amount of Calcium hydroxide : = 58.719 g

<h3>Further explanation</h3>

Given

100 g Nitric Acid-HNO₃

Required

The amount of Calcium hydroxide

Solution

Reaction(balanced) :

Ca(OH)₂ (s) + 2HNO₃ (aq) → Ca(NO₃)₂ (aq) + 2H₂O (l)

mol of Nitric acid (MW 63 g/mol) :

mol = mass : MW

mol = 100 : 63

mol = 1.587

From the equation, mol ratio of Ca(OH)₂ : HNO₃ = 1 : 2, so mol Ca(OH)₂ :

=1/2 x mol HNO₃

= 1/2 x 1.587

=0.7935

Mass of Ca(OH)₂ (MW=74 g/mol) :

= mol x MW

= 0.7935 x 74

= 58.719 g

5 0
3 years ago
Identify the bronsted-lowry acid and the bronsted-lowry base in this reaction on the left side of each of the following equation
Dahasolnce [82]

<u>Answer:</u> NH_4^+ is an acid, CN^- is a base, NH_3 is conjugate base and HCN is conjugate acid

<u>Explanation:</u>

According to Bronsted and Lowry's theory:

An acid is defined as a proton donor while a base is defined as a proton acceptor.

In a chemical reaction, an acid loses a proton to form a conjugate base while a base accepts a proton to form conjugate acid.

For the given chemical reaction:

NH_4^+(aq)+CN^-(aq)\rightleftharpoons HCN(aq)+NH_3(aq)

NH_4^+ is losing a proton thus it is an acid to form NH_3 which is its conjugate base

CN^- is gaining a proton thus it is a base to form HCN which is its conjugate acid

Hence, NH_4^+ is an acid, CN^- is a base, NH_3 is conjugate base and HCN is conjugate acid

7 0
3 years ago
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