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Hitman42 [59]
3 years ago
5

C3H8+5O2a3CO2 +4H2O is an example of a __________ chemical reaction. A. synthesis. B. combustion. C. replacement. D. synthesis a

nd combustion. E. synthesis and replacement.
Chemistry
1 answer:
lina2011 [118]3 years ago
7 0
B .combustion because HOH and CO2 are the products of complete combustion
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A certain flexible weather balloon contains 7.4 L of helium gas. Initially, the balloon is in WP at 8500ft, where the temperatur
Free_Kalibri [48]
<h2>The new volume of the balloon at the top of Pikes Peak is 10.2 L</h2>

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 577.0 torr

P_2 = final pressure of gas = 400 torr

V_1 = initial volume of gas = 7.4 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 20.6^oC=273+20.6=293.6K

T_2 = final temperature of gas = 7.5^oC=273+7.5=280.5K

Now put all the given values in the above equation, we get:

\frac{577.0\times 7.4}{293.6K}=\frac{400.0\times V_2}{280.5K}

V_2=10.2L

Thus the new volume of the balloon at the top of Pikes Peak is 10.2 L

Learn more about combined gas law

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3 0
3 years ago
Trust me when I say this.
eimsori [14]

Answer:

thank you

So much this was very nice.

6 0
3 years ago
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0.315 to scientific notation
irga5000 [103]

Answer:

3.15 × 10^-1

or

3.15E-1

Explanation:

7 0
3 years ago
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what is the predicted order of fist ionization energies from highest to lowest for beryllium, calcium, magnesium, and stronium?
MrRa [10]
Lowest to highest:
Ca
Mg
Be
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Synthesis<br> Decompisition<br> O Combustion<br> O Single Displacement<br> O Double Displacement
BabaBlast [244]

Answer:

Synthesis

Explanation:

Nothing else works

4 0
3 years ago
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