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3 years ago

One of the hopes for solving the world's energy problem is

Chemistry

1 answer:

lions [1.4K]3 years ago

6 0

Answer:

2.803013439419911 × 10⁻¹² J

Explanation:

Mass defect = mass of reactant - mass of product

(2.0140 + 3.01605) - (4.002603 + 1.008665)

5.03005 - 5.011268 = 0.018782 amu

mass in Kg = mass (amu) × 1.66053892173 × 10⁻²⁷ kg

mass in kg = 0.018782 × 1.66053892173 × 10⁻²⁷ = 3.1188242027932 × 10⁻²⁹kg

E = Δm c² where c is the speed of light = 2.9979 × 10⁸m/s

E = 3.1188242027932 × 10⁻²⁹kg × (2.9979 × 10⁸m/s)² = 2.803013439419911 × 10⁻¹² J

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Calculate the percent by mass of carbon in CO2 (carbon dioxide).

FromTheMoon [43]

Answer:

The answer to your question is 27.3 %

Explanation:

Percent by mass = ?

Process

1.- Calculate the atomic mass of carbon using the periodic table

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svlad2 [7]

Answer: The substance that produces fewest particles is $CH_2Cl_2$

Explanation:

Ionization reaction is defined as the reaction in which an ionic compound dissociates into its ions when dissolved in aqueous solution.

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For the given options:

Option 1: Sodium nitrate

The chemical formula of sodium nitrate is $NaNO_3$

The ionization reaction for the given compound follows:

$NaNO_3(aq.)\rightarrow Na^+(aq.)+NO_3^-(aq.)$

This produces in total of 2 ions.

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Option 3: $K_2SO_4$

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The ionization reaction for the given compound follows:

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This produces in total of 3 ions.

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The ionization reaction for the given compound follows:

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3 years ago

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Answer:

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Explanation:

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answer is atom.Hope it is helpful.

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