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2 years ago

2H2(g) + O2(g) mc001-1.jpg 2H2O(g)

Chemistry

2 answers:

Aleks [24]2 years ago

6 0

The answer is a) by increasing the temperature of the reactants.

Lesechka [4]2 years ago

6 0

Answer:

Explanation:

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solniwko [45]

Answer:

Explanation:

With the given choices, A would be correct for this question. But, both liquids and gases have particles that are far apart so that they can fill their containers.

7 0

2 years ago

During a reaction 24 cubic cm of carbon dioxide was given off. After 8 minutes no more gas was produced and the reaction was com

yuradex [85]

Answer:

Explanation:

Given parameters:

Volume of CO₂ = 24cm³

time taken for the reaction to complete = 8minutes.

Unknown:

rate of reaction

Soution

The reaction rate is a measure of speed of a chemical reaction. It is often calculated using the expression below:

Reaction rate = $\frac{change in concentration of reactant/product}{time taken}$

Reaction rate = $\frac{24}{8}$ = 3cm³/min

In this reaction, 3cm³ of carbon dioxide were produced per minute

7 0

2 years ago

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At equilibrium, the concentrations of the products and reactants for the reaction, H2 (g) + I2 (g)  2 HI (g), are [H2] = 0.106

lana [24]

Answer:

The new equilibrium concentration of HI: [HI] = 3.589 M

Explanation:

Given: Initial concentrations at original equilibrium- [H₂] = 0.106 M; [I₂] = 0.022 M; [HI] = 1.29 M

Final concentrations at new equilibrium- [H₂] = 0.95 M; [I₂] = 0.019 M; [HI] = ? M

Given chemical reaction: H₂(g) + I₂(g) → 2 HI(g)

The equilibrium constant ( $K_{c}$ ) for the given chemical reaction, is given by the equation:

$K_{c} = \frac {[HI]^{2}}{[H_{2}]\: [I_{2}]}$

At the original equilibrium state:

$K_{c} = \frac {(1.29\: M)^{2}}{(0.106\: M) \times (0.022\: M)}$

$K_{c} = \frac {1.6641}{0.002332} = 713.59$

Therefore, at the new equilibrium state:

$K_{c} = \frac {[HI]^{2}}{(0.95\: M) \times (0.019\: M)}$

$\Rightarrow K_{c} = 713.59 = \frac {[HI]^{2}}{0.01805}$

$\Rightarrow [HI]^{2} = 713.59 \times 0.01805 = 12.88$

$\Rightarrow [HI] = \sqrt {12.88} = 3.589 M$

Therefore, the new equilibrium concentration of HI: [HI] = 3.589 M

6 0

2 years ago

Help I'm giving you a lot of points and do not put random or crazy stuff the real question

dybincka [34]

Answer:

Endothermic

Explanation:

Because Endothermic is cold and exothermic is hot and if you are using an ice pack it would be Endothermic and if you were using something that was hot it would be exothermic

6 0

2 years ago

Can somebody please help me please?

Phoenix [80]

Answer:

7.74%

Hope this helped! Have a good day.

8 0

1 year ago

Read 2 more answers