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oksano4ka [1.4K]
3 years ago
6

When does a total solar eclipse take place?

Chemistry
1 answer:
tankabanditka [31]3 years ago
3 0

A total solar eclipse happens when the moon completely hides the solar surface, cutting off all direct rays of sunlight from the the person watching.

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Calculate the pressure of the CO₂ (g) in the container at 425 K.
Elanso [62]

The pressure of the CO₂ = 0.995 atm

<h3>Further explanation</h3>

The complete question

<em>A student is doing experiments with CO2(g). Originally, a sample of gas is in a rigid container at 299K and 0.70 atm. The student increases the temperature of the CO2(g) in the container to 425K.</em>

<em>Calculate the pressure of the CO₂ (g) in the container at 425 K.</em>

<em />

<em />

Gay Lussac's Law

When the volume is not changed, the gas pressure is proportional to its absolute temperature

\tt \dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

P₁=0.7 atm

T₁=299 K

T₂=425 K

\tt P_2=\dfrac{P_1\times T_2}{T_1}\\\\P_2=\dfrac{0.7\times 425}{299}=0.995 `atm

<em />

6 0
3 years ago
Is it true that the formula for magnesium sulfate shows that there are four atoms of sulfur
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The chemical formula for magnesium sulfate is MgSO4, so it shows that there are four atoms of oxygen but not sulfur. There is only one atom of sulfur in the formula
4 0
3 years ago
Examine the reaction equation. Mg(OH)2(s) + HCl(aq) →H2O(l) + MgCl2(aq) What coefficients will balance the equation? A) 2, 4, 2,
r-ruslan [8.4K]

Answer:

D

Explanation:

1, 2, 2, 1

6 0
3 years ago
Read 2 more answers
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