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3 years ago

Define An Atom.Ty!!!

Chemistry

2 answers:

astra-53 [7]3 years ago

5 0

Answer:

the basic unit of a chemical element.

Explanation:

snow_lady [41]3 years ago

3 0

=> the smallest particle of a chemical element that can exist.

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What chemical reaction involve acid and bases

svetoff [14.1K]

Answer:

Neutralization reaction

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3 years ago

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What does sodium react with

Pani-rosa [81]

Sodium reacts with water to form a colorless solution of sodium hydroxide and hydrogen gas.

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3 years ago

0.5 moles of sodium chloride is dissolved to make 0.05 liters of solution what is the molarity

Sunny_sXe [5.5K]

Molarity = moles of solute / liters of solution

M = 0.5 / 0.05

M = 10.0 mol/L⁻¹

hope this helps!

4 0

3 years ago

If a temperature increase from 10.0 ∘C to 22.0 ∘C doubles the rate constant for a reaction, what is the value of the activation

maria [59]

The activation energy barrier is 40.1 kJ·mol⁻¹

Use the Arrhenius equation

$\ln( \frac{k_2 }{k_1 }) = (\frac{E_{a} }{R })(\frac{ 1}{T_1} - \frac{1 }{T_2 })\\$

$\ln( \frac{2k }{k}) = (\frac{E_{a} }{\text{8.314 J} \cdot \text{K}^{-1} \text{mol}^{-1} })(\frac{ 1}{\text{283.15 K}} - \frac{1 }{\text{295.15 K }})\\$

$\ln2 = (\frac{ E_{a} }{\text{8.314 J} \cdot \text{K}^{-1} \text{mol}^{-1}}) \times 1.436 \times10^{-4}\\$

$\ln2 = E_{a} \times 1.727 \times 10^{-5} \text{ mol} \cdot \text{J}^{-1}$

$E_{a} = \frac{\ln2 }{ 1.727 \times10^{-5}\text{ mol} \cdot \text{J}^{-1}}\\$

$E_{a} = \text{40 100 J}\cdot\text{mol}^{-1} = \textbf{40.1 kJ}\cdot \textbf{mol}^{-1}$

3 0

3 years ago

(07.06 mc)

Slav-nsk [51]

Distilled water and sealed container are in equilibrium when these objects do not exchange more heat.

<h3>What is thermal equilibrium?</h3>

The expression 'thermal equilibrium' makes references to the phenomenon by which two objects interact with each other to exchange heat energy.

Objects in contact can transfer heat to reach a thermal equilibrium state where the temperature is the same for both objects.

In conclusion, distilled water and sealed container are in equilibrium when these objects do not exchange more heat.

Learn more on thermal equilibrium here:

brainly.com/question/9459470

#SPJ1

5 0

2 years ago

Define An Atom.Ty!!!​

Define An Atom.Ty!!!