The answer would be A: its container.
Gas will expand to fill whatever container it is put in.
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

P₁=0.7 atm
T₁=299 K
T₂=425 K

<em />
I'm not understanding that much. but if i'm right the answer is <span>3.84 x 10^-19 J</span>
Be-beryllium have 2 electrons and it is in the 2 nd period
It was created about 6,000 years ago