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larisa [96]
3 years ago
15

How many elements are in one molecule of Methane?

Chemistry
1 answer:
Sedbober [7]3 years ago
4 0
3 elements are in one chemical
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In the reaction 2H2O (l) + 2Cl– (aq) → H2 (g) + Cl2 (g) + 2OH– (aq), which substance is oxidized?
pashok25 [27]

F. None of the above [Cl^(-) is oxidized]

<em>No Cl atoms are available</em> to be oxidized, only Cl^(-)ions

2Cl^(-) → Cl_2 + 2e^(-)

The substance that <em>loses electrons</em> is oxidized.

Remember <em>OIL</em> RIG (<em>O</em>xidation<em> I</em>s <em>L</em>oss of electrons) and

<em>LEO</em> the lion says GER (<em>L</em>oss of Electrons is <em>O</em>xidation).

3 0
4 years ago
How much heat is absorbed by a 2000 g granite rock as energy from the sun causes its temperature to change from 10°C to 29°C?
emmainna [20.7K]

Answer:

None of the options are correct. The correct answer is 30020J

Explanation:

Data obtained from the question include:

Mass (M) = 2000g

Initial temperature (T1) = 10°C

Final temperature (T2) = 29°C

Change in temperature (ΔT) = T2 - T1 = 29°C - 10°C = 19°C

Heat (Q) =?

Specific heat capacity (C) of granite = 0.79J/g°C

Applying the equation Q = MCΔT, the heat absorbed by the granite rock can be obtained as follow:

Q = MCΔT

Q = 2000 x 0.79 x 19

Q = 30020J

3 0
3 years ago
Which of the following statements is true a A) dams are made of molecules B) Adams can join to form molecules C) atoms contain m
Jobisdone [24]
Statement B is true because atoms are single particles that come together to form compounds and molecules.
5 0
3 years ago
How long is a half life for carbon 14?
babunello [35]

Answer:

half-life of 5,700 ± 40 years

Explanation:

6 0
3 years ago
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Why do different materials/objects have different reactions to fire?​
True [87]

Answer:

Different compounds react with oxygen differently – some contain lots of heat energy while others produce a smaller amount. The reaction with the oxygen may happen very quickly or more slowly. Amount: The amount of fuel available to burn is known as the fuel load.

Explanation:

5 0
3 years ago
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