1 year ago

The web site of the Nobel Prize explains that readers who want to inspect the Curies' notebooks must sign a paper

Chemistry

1 answer:

NNADVOKAT [17]1 year ago

8 0

Answer: anemia because Marie curie died of anemia

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Which of the following is not apart of daltons atomic theory

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3. Atoms change into other atoms in chemical reactions.

The idea that you can transform one element into another was called alchemy, and was proven untrue a long time ago.

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True or false A compound can consist of one kind of element?

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False because a compound is one or more elements

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In the Dumas Method, the volatile sample

balu736 [363]

Answer:

true

Explanation:

it's true I have the same course

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Using the model, write the chemical formula for an ionic compound that has Mg and Cl.

viktelen [127]

Answer

Mg2Cl2

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cl + cl = cl2

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The equations given in the problem introduction can be added together to give the following reaction: overall: N2O4→2NO2 However

Murljashka [212]

Answer:

Reverse the $2 NO_2 \longrightarrow 2 NO + O_2$ reaction

Explanation:

Reactions:

$2 NO_2 \longrightarrow 2 NO + O_2$

$N_2O_4 \longrightarrow 2 NO + O_2$

Overall:

$N_2O_4 \longrightarrow 2 NO_2$

As can be seen, in the overall reaction we have $N_2O_4$ in the reactants like in the second reaction and $NO_2$ in the products. The $NO_2$ is in the first reaction but as a reactant so we need to reverse that reaction:

$2 NO + O_2 \longrightarrow 2 NO_2$

$N_2O_4 \longrightarrow 2 NO + O_2$

Combining:

$N_2O_4 + 2 NO + O_2\longrightarrow 2 NO + O_2 + 2 NO_2$

$N_2O_4 \longrightarrow 2 NO_2$

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