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3 years ago

Which has more particles? 10.0 g of Carbon or 10.0 g Calcium? How many atoms does each have?

Chemistry

1 answer:

Snezhnost [94]3 years ago

7 0

Answer:

10g Carbon has more particles.

Explanation:

To Find

Which has more particles 10g of C or 10g of Ca

The molar mass of carbon is 12g and Calcium is 40g.

1 mole of atom , molecule or ions contain Avagadro number (6.022×10∧23) of particles and also have a mass equal to it's molar mass.

For C,

12g C will have 6.022×10∧23 atoms

10g C will have $\frac{10}{12}$ ×6.022×10∧23 atoms

=0.833 × 10∧23 atoms

For Ca,

1 mole Ca =40g

40g Ca will have 6.022×10∧23 atoms

10g Ca will have $\frac{10}{40}$ ×6.022×10∧23 atoms

=0.25 × 6.022×10∧23 atoms

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Coffee is decaffeinated industrially using supercritical (sc) CO2. One advantage to using scCO2 is that the polarity of the supe

koban [17]

Answer:

Yes

Explanation:

A supercritical fluid has good properties for both liquid and as for extraction properties, the advantages then include:

The fact that it has a lower viscosity than liquid CO2 allowing it to move through and around coffee beans more thoroughly with creating back pressure
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This experiment would not work with tea leaves because they also contain caffeine

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3 years ago

The state of the neuron when not firing a neural impulse is known as the _______________ _______________.

Fed [463]

Answer:Referring to the fact that a neuron either fires completely or does not fire at all.

Explanation:

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2 years ago

The element that can act like a metal when it is under tremendous pressure and is probably responsible for Jupiter and Saturn's

erastova [34]

Answer:

1. Hydrogen

Explanation:

These planets contain liquid hydrogen in their interior, while the earth has liquid iron in it.

When liquid hydrogen is in tremendous pressure enviroments, the electrons that make up each atom of this element end up "jumping" to other atoms. These "jumps" allow liquid hydrogen to behave like a metal.

In addition, with the constant energy released by the nucleus of planets like Jupiter and Saturn, as well as their rotations, the liquid hydrogen receives induction of currents, giving rise to extremely powerful magnetic fields.

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3 years ago

Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient

romanna [79]

Answer:

Coefficient of $H^{+}(aq)$ is more than 4

Explanation:

Oxidation: $Sn^{2+}(aq)\rightarrow Sn^{4+}(aq)$

Balance charge: $Sn^{2+}(aq)-2e^{-}\rightarrow Sn^{4+}(aq)$ ......(1)

Reduction: $Cr_{2}O_{7}^{2-}(aq)\rightarrow Cr^{3+}(aq)$

Balance Cr: $Cr_{2}O_{7}^{2-}(aq)\rightarrow 2Cr^{3+}(aq)$
Balance O and H in acidic medium: $Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l)$
Balance charge: $Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)+6e^{-}\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l)$ .......(2)

$[3\times Equation-(1)]+Equation(2)$ gives balanced equation:

$3Sn^{2+}(aq)+Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)\rightarrow 3Sn^{4+}(aq)+2Cr^{3+}(aq)+7H_{2}O(l)$

So coefficient of $H^{+}(aq)$ is more than 4

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3 years ago

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OLEGan [10]

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<h3>What Arrhenius acids?</h3>

A substance that raises the concentration of H+ ions in an aqueous solution is known as an Arrhenius acid. Traditional Arrhenius acids are highly polarized covalent substances that dissociate in water to form an anion (A-) and the cation H+.

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Although the precise definition solely refers to the solute, the term "acid" is sometimes used to refer to an aqueous solution of an acid that has a pH lower than 8.

To learn more about Arrhenius acids from the given link:

brainly.com/question/22095536

#SPJ4

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