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Dennis_Churaev [7]
3 years ago
7

Burning 10g of propane produces twice as much carbon dioxide as burning 5g of propane what law does it apply?

Chemistry
1 answer:
Marysya12 [62]3 years ago
7 0
This corresponds to the law of multiple proportions which states that when a certain amount of compound reacts to form another compound, the ratio of the amounts between the reactants and the products are a fraction of simple or whole numbers.<span />
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B) How many moles of Na2O can be produced from 13.5 moles Na?
dolphi86 [110]

Answer: 6.75 moles of Na_2O can be produced from 13.5 moles Na

Explanation:

The balanced chemical equation  for formation of Na_2O from Na is:

4Na+O_2\rightarrow 2Na_2O  

According to stoichiometry :

4 moles of Na give = 2 moles of Na_2O

Thus 13.5 moles of Na give =\frac{2}{4}\times 13.5=6.75moles  of Na_2O  

Thus 6.75 moles of Na_2O can be produced from 13.5 moles Na

3 0
3 years ago
Need help on this ASAP !!!!
n200080 [17]

Answer:

3 moles

Explanation:

This question is on stoichiometry of reactions

Given

2H₂ +O₂⇒2H₂O-------------------the equation is balanced

<u>Find the mole ratio</u>

2H₂ +O₂⇒2H₂O

2        1       2

O:H = 2:1---------------------------------every mole of hydrogen requires two moles of oxygen to complety react

Thus given 6 moles of hydrogen;

O:H

?:6

=6/2=3 moles

7 0
3 years ago
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon
Dafna1 [17]

Answer:

Explanation:

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon

dioxide as shown below.

CaCO3(s) = CaO(s) + CO2(g)

The Kp for this reaction is 1.16 at 800°C. A 5.00 L vessel containing 10.0 g of CaCO3(s)

was evacuated to remove the air, sealed, and then heated to 800°C. Ignoring the volume

occupied by the solid, what will overall mass percent of carbon in the solid once equilibrium is reached?

4 0
2 years ago
A tire contains 1.50 mol of air at a gauge pressure of 205 kPa. If the volume of the air in the tire is 0.0120 m3, what is its t
Free_Kalibri [48]

Answer:

197.07 K

Explanation:

To solve this problem we can <u>use the PV=nRT equation</u>, where:

  • P = 205 kPa ⇒ 205 * 0.00986 = 2.02 atm
  • V = 0.0120 m³ ⇒ 0.0120 * 1000 = 12 L
  • n = 1.50 mol
  • R = 0.082 atm·L·mol⁻¹·K⁻¹
  • T = ?

We<u> input the data</u>:

  • 2.02 atm * 12 L = 1.50 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * T

And <u>solve for T</u>:

  • T = 197.07 K
6 0
3 years ago
2. Why are there so many volcanoes in California? <br>​
Kruka [31]

Answer:

Most higher risk volcanoes are far from California’s largest cities and several produce heat that’s used to generate electricity in what are the world’s most productive geothermal power plants, such as the Salton Buttes, 160 miles southeast of Los Angeles, and the Clear Lake Volcanic Field 85 miles north of San Francisco that powers the Geysers steam field.

Explanation:

5 0
3 years ago
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