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IceJOKER [234]
3 years ago
13

Which distinguishes an atom of one element from an atoms of a different element? Please help

Chemistry
2 answers:
yaroslaw [1]3 years ago
3 0

Answer:

because the number of electrons and protons differs

Lera25 [3.4K]3 years ago
3 0

Answer:

the number of neutrons and protons

Explanation:

because they differ

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The answer is C multiple alleles
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3 years ago
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In the reaction, A → Products, the rate constant is 3.6 × 10−4 s−1. If the initial concentration of A is 0.548 M, what will be t
Arada [10]

Answer:

        \large\boxed{\large\boxed{0.529M}}

Explanation:

Since the <em>rate constant</em> has units of <em>s⁻¹</em>, you can tell that the order of the reaction is 1.

Hence, the rate law is:

       r=d[A]/dt=-k[A]

Solving that differential equation yields to the well known equation for the rates of a first order chemical reaction:

      [A]=[A]_0e^{-kt}

You know [A]₀, k, and t, thus you can calculate [A].

       [A]=0.548M\times e^{-3.6\cdot 10^{-4}/s\times99.2s}

       [A]=0.529M

7 0
4 years ago
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When crude oil get extracted from well, salt water and some other stuff needs to be removed before oil can be sued in the car


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4 years ago
The nitrogen and hydrogen atoms that make up ammonia are held together by a
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5 0
4 years ago
He heat of solution of kcl is 17. 2 kj/mol and the lattice energy of kcl(s) is 701. 2 kj/mol. calculate the total heat of hydrat
Alexandra [31]

The total heat of hydration of 1. 00 mol of gas phase K^{+} ions and Cl^{-}ions is - 684 kJ/mol.

Calculation ,

Given data ,

Heat of solution =  17. 2 kJ/mol

lattice energy of KCl(s) = 701. 2 kJ/mol.

heat of hydration = ?

The KCl is formed byK^{+} ions and Cl^{-}– ions

ΔH_{solution} = U° + ΔH_{hydration}

ΔH_{hydration} = ΔH_{solution} - U° =  17. 2 kJ/mol - 701. 2 kJ/mol = - 684 kJ/mol

Hence, heat of hydration of 1. 00 mol of gas phase K^{+} ions and Cl^{-} ions is - 684 kJ/mol.

To learn more about  hydration

brainly.com/question/15724859

#SPJ4

7 0
2 years ago
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