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iris [78.8K]
2 years ago
10

Which graph above shows an object’s acceleration? 1pt

Chemistry
2 answers:
Pepsi [2]2 years ago
8 0
The correct answer is A.
Solnce55 [7]2 years ago
4 0

Answer:

A. because the graph is moving uo

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Meanders are characteristics of a young river. True False
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Octane has a density of 0.703 g/ml. Calculate the mass of CO2(g) produced by burning one
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The mass of CO₂ gas produced during the combustion of one gallon of octane is 8.21 kg.

The given parameters:

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  • <em>Volume of octane, v = 3.79 liters</em>

<em />

The mass of the octane burnt is calculated as follows;

m = \rho V\\\\m = 0.703 \ \frac{g}{ml} \times 3.79 \ L \ \frac{1000 \ ml}{L} \\\\m = 2,664.37 \ g

The combustion reaction of octane is given as;

2C_8H_{18} +  \ 25O_2 \ --> \ 16CO_2 \ + \ 18H_2O

From the reaction above:

228.46 g of octane -------------------> 704 g of  CO₂ gas

2,664.37 of octane --------------------> ? of CO₂ gas

= \frac{2,664.37 \times 704}{228.46} \\\\= 8,210.3 \ g\\\\= 8.21 \ kg

Thus, the mass of CO₂ gas produced during the combustion of one gallon of octane is 8.21 kg.

Learn more about combustion of organic compounds here: brainly.com/question/13272422

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Separation of mixtures and purification of chemical substances
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