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goblinko [34]
2 years ago
8

Atoms of elements that are in the same group have the same number of

Chemistry
1 answer:
Karo-lina-s [1.5K]2 years ago
4 0
They have the same number of valence electrons / outermost shell electrons.
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Which of processes of water cycle occur by releasing energy
suter [353]
<span>Condensation, Freezing and Precipitation. The processes occur during water cycle that release energy are: 1) Condensation - Conversion of vapour into liquid 2) Freezing - Conversion of liquid into solid 3) Precipitation - Is basically a product of condensation, example drizzle, etc</span>
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2 years ago
For a certain reaction, Kc = 2.76×103 and kf= 6.54×10−4 M−2⋅s−1 . Calculate the value of the reverse rate constant, kr, given th
riadik2000 [5.3K]

Answer:

2.37x10⁻⁷ M⁻².s⁻¹

Explanation:

For a generic reversible reaction:

A + B ⇄ C + D

Kf is the constant of the formation of the products (C and D), Kr is the constant of the formation of the reactants (A and B), and Kc is the general equilibrium constant, which is:

Kc = Kf/Kr

2.76x10³ = 6.54x10⁻⁴/Kr

Kr = 6.54x10⁻⁴/2.76x10³

Kr =  2.37x10⁻⁷ M⁻².s⁻¹

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3 years ago
What is point group of allene?​
Fantom [35]

Allene (1,2-propadiene) has point group D2d, itself is achiral because it has two planes of symmetry. ... An allene with substituents on one terminal carbon atom are unlike and substituent on other terminal carbon atoms are same, allene will be achiral. It will have one symmetry plane.

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4 0
3 years ago
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A weather balloon was initially at a pressure of 0.900 atm, and its volume was 35.0 L. The pressure decreased to 0.750 atm, with
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Boyle's Law

P₁V₁=P₂V₂

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Answer:

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