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guajiro [1.7K]
3 years ago
12

What is the process of discovery that allows us to link abservations with actual facts?

Chemistry
1 answer:
MaRussiya [10]3 years ago
5 0
Inquiry to find the answers we search for
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Determine the balanced chemical equation for this reaction. C8H18(g)+O2(g)→CO2(g)+H2O(g)
ankoles [38]

Answer: balanced reaction equation

C8H18(g) + 25/2 O2(g) ---------> 8CO2(g) + 9H2O(l)

Explanation:

Part A- coefficients

1, 25/2,8,9

Part B

Oxygen is the limiting reactant

Part C

If 1 mole of octane produced 9 moles of water from the balanced reaction equation

0.28 moles of octane will produce 0.28×9= 2.52 moles of water

Part D

If 12.5 moles of oxygen reacts with 1 mole of octane

0.63 moles of oxygen will react with 0.63/12.5=0.0504moles of octane

Amount of octane left= 0.280-0.0504=0.2296 moles

4 0
3 years ago
He distance from Earth to the North Star is about 430 light-years. Which of the following statements describes why scientists us
garri49 [273]

Answer:

D

Explanation:

because the rest don’t make any sense

8 0
2 years ago
You place air in a sealed can at standard temperature and pressure (stp). you heat it to four times its absolute temperature (k)
pochemuha
By Gayle-Lussac's law, the pressure and temperature of a fixed volume and amount of gas is directly proportional.
Thus,

P/T = constant

So if the temperature is increased four times, the pressure is also increased four times.
4 0
3 years ago
An element contains only one kind of <br> A. particle. B. property. C. protein. D. raw material.
ivanzaharov [21]

Answer:

A

Explanation:

an element contains only one kind of particle

3 0
3 years ago
What can be said about an exothermic reaction with a negative entropy change?.
pashok25 [27]
Spontaneous at low temperatures.
3 0
2 years ago
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