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mash [69]
3 years ago
7

1, 2 and 3 ........

Chemistry
1 answer:
Orlov [11]3 years ago
8 0
2.) Average atomic mass =Σ (abundance x molar mass) /100 = (12.64 x 302.04 + 18.23 x 304.12 + 69.13 x 305.03) /100 =304.486 u(Dalton) . This is avg atomic mass.

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Which of the following elements with exhibit the greatest shielding effect
Dafna11 [192]

Rubidium would exhibit the greatest shielding [ effect. ]

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3 years ago
Element A has an electronegativity of 0.8 and element B has an electronegativity of 3.0. Which statement best describes the bond
Advocard [28]

Answer:

C) The compound is largely ionic with A as the cation.

Explanation:

Pulings proposed the method to determine if the compound is ionic in nature or covalent in nature , by finding the difference between the electronegativity of the respective cation and anion .

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The electronegativity difference above 1.7 make the compound ionic in nature.

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And the electronegativity difference above 1.7 so the compound is ionic in nature.

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Hydrochloric acid (HCI) is created by a chemical reaction between hydrogen (H) and chlorine (CI). Which substance is
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Fiesta28 [93]

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4 0
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When the reaction
yaroslaw [1]
We can express the rate equation in this form:
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We can solve this by trial and error or by calculus. The first method is easier. The rate constant does not depend on the concentration of the reactant. Assume values of n and m and solve for k in each experiment. The only option that gives really close values of k in each experiment is:
<span>C. CH3Cl: firstorder H2O: second order
</span>
3 0
4 years ago
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