<span>Answer:
When sodium nitrate (NaNO3) is dissolved in water, the resulting solution is neutral. NaNO2 = Na+ + NO2-
NO2- + H2O = HNO2 + OH-
The solution is basic
NaNO3 = Na+ + NO3-
NO3- is the conjugate base of the strong acid HNO3 will not react with water so the resulting solution is neutral</span>
Answer is: <span>the size of the sample of uranium-238 does not affect its half-life.
</span><span>
The half-life for the
radioactive decay of U-238 is 4.5 billion years and is independent of initial
concentration (size of the sample).
</span>Half-life <span>is
the time required for a quantity (in this example number
of radioactive uranium) to reduce to half its initial
value.</span><span>
</span>
Answer:
C. Releases less carbon dioxide
Explanation:
since geothermal steams are directly from earths surface they do not have carbon dioxide therefore they can be used to rotate turbines ultimately generating electricity.
<span>If it is known that at 60 °C and 745 torr UF₆ is present only as a gas then we can make the assumption that:
</span>(n/V) = P/RT = (745 torr)/(62.36 L-torr/mol•K)(337 K) = 0.0354 mol/L
Therefore the density will be:
<span>
Density = (352.02 g/mol)(0.0354 mol/L)/(1000 cm³/L) = 0.0125 g/cm³
</span>
