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Simora [160]
3 years ago
11

Please help need it today!!

Chemistry
2 answers:
forsale [732]3 years ago
5 0

Answer:

C lightning

Explanation:

Vinvika [58]3 years ago
5 0

Answer: Lightning

Explanation: Hope this helps!!

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Observations are made by using one of the five senses (touch, sight, taste, smell, hearing) to gather information.
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answer B the rock is purple

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2 years ago
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Cuando se quema 1 mol de metano –o sea, 16 g–, se desprenden 802
Anvisha [2.4K]

Answer:

1 gramo de metano aporta 50.125 kilojoules.

1 gramo de metano aporta 48.246 kilojoules.

Explanation:

La cantidad de energía liberada por la combustión de una unidad de masa del hidrocarburo (Q), en kilojoules por mol, es igual a la cantidad de energía liberada por mol de compuesto (\bar {Q}), en kilojoules por mol, dividido por su masa molar (M), en gramos por mol:

Q = \frac{\bar Q}{M} (1)

A continuación, analizamos cada caso:

Metano

Q = \frac{802\,\frac{kJ}{mol} }{16\,\frac{g}{mol} }

Q = 50.125\,\frac{kJ}{g}

1 gramo de metano aporta 50.125 kilojoules.

Octano

Q = \frac{5500\,\frac{kJ}{mol} }{114\,\frac{g}{mol} }

Q = 48.246\,\frac{kJ}{mol}

1 gramo de metano aporta 48.246 kilojoules.

3 0
3 years ago
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Aleks [24]

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10CO²+4H²O

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that Brainliest me pls

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Explain how the understanding of penetrating power can be used to protect yourself from different types of ionizing radiation.
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Answer:

Radiation is energy. It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects.

Explanation:

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What is the percent of O in CO2
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