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3 years ago

Why aren't alkali metals found in pure form?

1 answer:

6 0

It mostly because they're so reactive and if they were in their pure form and touched water they would have a very violent reaction. They also want to be more stable so they look for more electrons and quickly bond.

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As an electron in an atom moves from a higher energy state to a lower energy state, the atom

Verdich [7]

Answer:B

Explanation:

5 0

3 years ago

In the nuclear transmutation, 168O (?, α)137N, what is the bombarding particle? In the nuclear transmutation, O (?, )N, what is

xeze [42]

Answer:

The bombarding particle is a Proton

Explanation:

A Nuclear transmutation reaction occurs when radioactive element decay, usually converting them from one element/isotope into another element. Transmutation is the process which causes decay, generally, alpha or beta.

¹⁶₈O(P,alpha) ¹³₇N, can be written as

¹⁶₈O + x goes to ¹³₇N + ⁴₂He

Where x can be anything, balancing the equation in order to give us the correct amount of proton number and nucleus number

16 + x = 13 + 4

x = 17 – 16 = 1, Hence we can say that x = ¹₁P

¹⁶₈O + ¹₁P goes to ¹³₇N + ⁴₂He

Here we can clearly see the bombarding particle is ¹₁P (proton). The ejected particle being ⁴₂He which is also known as an alpha particle

5 0

4 years ago

HELP!!! OPTIONS: gas, liquid, solid

erica [24]

Answer:

Melting: solid liquid, Freezing: liquid to solid, Evaporation: liquid to gas.

Explanation:

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3 0

3 years ago

Identify ALL the possible mol ratio from this balanced equation:

grandymaker [24]

Answer:

$\frac{1 mole of N_{2} }{3 moles of H_{2} }$

Explanation:

The equation of the reaction:

Nitrogen gas N₂ reacts with Hydrogen as H₂ to produce ammonia NH₃;

N₂ + H₂ → NH₃

The balanced equation is ;

N₂ + 3H₂ → 2NH₃

The mole ratio is the ratio of the coefficients of the combining reactants;

1 mole of N₂ combines with 3 mole of H₂;

So;

$\frac{1 mole of N_{2} }{3 moles of H_{2} }$

3 0

3 years ago

You are separating anthracene from benzoic acid via an extraction between ethyl acetate and a basic aqueous solution in a separa

anygoal [31]

The benzoic acid Collect the top layer dry with Na2SO4 and evaporate the solvent.

Benzoic acid is sparingly soluble in water and forms a precipitate. The benzoic acid can then be separated by suction filtration through a Buchner funnel. Washing with sodium bicarbonate converts the benzoic acid to the more water-soluble form of sodium benzoate, which is extracted into the aqueous layer. Additionally, sodium bicarbonate neutralizes the catalytic acid in this reaction.

Benzoic acid containing the naphthalene impurity can be purified by crystallization in water. The reaction between benzoic acid and NaOH is an acid-base neutralization reaction. An acid reacts with a base to form salt and water. In aqueous solutions, NaOH increases the solubility of benzoic acid. Benzoic acid cannot move from one layer to another because ethanol is immiscible with water.

Learn more about Benzoic acid here:-brainly.com/question/28299797

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4 0

1 year ago