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2 years ago

I have four neutrons and I'm metallic. Who am I?

Chemistry

2 answers:

Mekhanik [1.2K]2 years ago

8 0

Beryllium has four neutrons

gogolik [260]2 years ago

7 0

A metal element that has four neutrons... Beryllium.

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Which of these experimental designs could lead to bias?

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3 years ago

Calculate the mass of Iron in 40g of Fe203

Nat2105 [25]

Answer:

‏‏‎ ‎

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2 years ago

A compound is found to contain 47 percent potassium 14.5 percent carbon and 38.5 percent oxygen by the way the molar mass of the

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2 years ago

Tetrachloromethane, CCl4 is produced from the substitution reaction between methane and chlorine gas. If the rate of formation o

Korolek [52]

The rate of disappearance of chlorine gas : 0.2 mol/dm³

<h3>Further explanation</h3>

The reaction rate (v) shows the change in the concentration of the substance (changes in addition to concentrations for reaction products or changes in concentration reduction for reactants) per unit time.

For reaction :

$\tt aA+bB\rightarrow cC+dD$

The rate reaction :

$\tt -\dfrac{1}{a}\dfrac{d[-A]}{dt}= -\dfrac{1}{b}\dfrac{d[-B]}{dt}=\dfrac{1}{c}\dfrac{d[C]}{dt}=\dfrac{1}{d}\dfrac{d[D]}{dt}$

Reaction for formation CCl₄ :

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From equation, rate of reaction = rate of formation CCl₄ = 0.05 mol/dm³

Rate of formation of CCl₄ = reaction rate x coefficient of CCCl₄

0.05 mol/dm³ = reaction rate x 1⇒reaction rate = 0.05 mol/dm³

The rate of disappearance of chlorine gas (Cl₂) :

Rate of disappearance of Cl₂ = reaction rate x coefficient of Cl₂

Rate of disappearance of Cl₂ = 0.05 x 4 = 0.2 mol/dm³

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3 years ago

____________ is the process used to separate the solvent from a solution

bixtya [17]

Distillation :)
:) :) :) :) :) :)

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2 years ago