Examine the chart.
\begin{tabular}{|l|l|l|l|l|}
\hline Religion & 2010 Population & % in 2010 & 2050 Projected Population & % in 2050 \\
\hline Christianity & 266,630,000 & 77.4 & 286,710,000 & 65.8 \\
\hline Unaffiliated & 59,040,000 & 17.1 & 111,340,000 & 25.6 \\
\hline Judaism & 6,040,000 & 1.8 & 5,920,000 & 1.4 \\
\hline Buddhism & 3,860,000 & 1.1 & 6,080,000 & 1.4 \\
\hline Islam & 3,480,000 & 1.0 & 10,350,000 & 2.4 \\
\hline Hinduism & 2,250,000 & 0.7 & 5,850,000 & 1.3 \\
\hline Other Religions & 2,200,000 & 0.6 & 6,540,000 & 1.5 \\
\hline Folk Religions & 1,020,000 & 0.3 & 2,630,000 & 0.6 \\
\hline Total & 344,530,000 & 100,0 & 435,420,000 & 100.0 \\
\hline
\end{tabular}
Which conclusion can be drawn from the data presented in the chart?
A. By 2050, there will be fewer Christians in North America than there were in 2010.
B. There will still be fewer North Americans practicing Islam than Judaism or Buddhism in 2050.
C. The number of North Americans who are unaffiliated with any religion will increase significantly by 2050.
D. All religions except Christianity will represent a greater percentage of North Americans in 2050 than in 2010.
Answer (3)
You will get at first carbon dioxide by burning C: C + O 2 = C O 2 Burn hydrogen to obtain water: H 2 + 2 1 O 2 = H 2 O Combine them: C O 2 + H 2 O = H 2 C O 3 Now react it with Ba: B a + H 2 C O 3 = B a C O 3 + H 2 To sum up, the reaction is B a + C + 2 3 O 2 = B a C O 3 , using hydrogen as a catalyst.
You will get at first carbon dioxide by burning C:
C+O_2=CO_2
Burn hydrogen to obtain water:
H_2+\frac{1}{2}O_2=H_2O
Combine them:
CO_2+H_2O=H_2CO_3
Now react it with Ba:
Ba+H_2CO_3=BaCO_3+H_2
To sum up, the reaction is Ba+C+\frac{3}{2}O_2=BaCO_3, using hydrogen as a catalyst. ;
The balanced chemical equation for the formation of BaCO₃(s) is Ba(s) + C(s) + \frac{3}{2} O₂(g) -> BaCO₃(s). This equation illustrates the combination of barium, carbon, and oxygen in their standard states. The reaction yields one mole of barium carbonate as a solid product.
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