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2 years ago

What color does a low-temperature light emit?

Chemistry

2 answers:

Ymorist [56]2 years ago

5 0

Answer:

yellow

Explanation:

A higher temperature emits a blue light, whereas a lower temperature emits a yellowish light.

DiKsa [7]2 years ago

3 0

I would say red light

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Athe gas that siports burning is

kondaur [170]

The answer is E it’s killing all oxygen that is around you

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3 years ago

From standard reduction potentials, calculate the equilibrium constant at 25 ∘c for the reaction 2mno−4(aq)+10cl−(aq)+16h+(aq)→2

garik1379 [7]

Answer:

$\boxed{\text{57.9}}$

Explanation:

Step 1. Determine the cell potential

E°/V

2MnO₄⁻ + 16H⁺ + 10e⁻ → 2Mn²⁺+ 8H₂O 1.507

10Cl⁻ ⟶ 5Cl₂ + 10e⁻ -1.358 27

2MnO₄⁻ + 10Cl⁻ + 16H⁺⟶ 2Mn²⁺ + 5Cl₂ + 8H₂O 0.149

Step 2. Calculate K

The formula relating K and E is

$E = \dfrac{RT}{nF} \ln K$

E = 0.149 V

R = 8.314 J·K⁻¹mol⁻¹

T = 25 °C = 298.15 K

n = 10

F = 96 485 C/mol

$0.149 = \dfrac{8.314 \times 298.15}{10\times 96 485} \ln K\\\\0.149 = 0.002 570 \ln K\\\\\ln K = \dfrac{0.149}{0.002570} = \textbf{57.9}$

The value of the equilibrium constant is $\boxed{\textbf{57.9}}$

6 0

2 years ago

Is concrete a compound element or mixture?

alisha [4.7K]

Concrete is a mixture.

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2 years ago

What is not a way that a mineral can be formed

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under extreme heat or pressure
crystallize from magma
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8 0

3 years ago

In a Lewis structure for carbon tetrachloride (CCl4), which of the following is the central atom?

Sonbull [250]

Carbon is the answer it is the main molecule in the atom

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