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shtirl [24]
3 years ago
11

Is fire a source of chemical energy

Chemistry
1 answer:
Leno4ka [110]3 years ago
4 0

Answer:

Any matter considered to be a fuel contains chemical energy

Energy has to be provided to initiate the reaction.

So yes. It is

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What happens on a molecular level when a diatomic molecule is a gas but is then cooled to a solid?
irina1246 [14]

Answer:

As an example of the processes depicted in this figure, consider a sample of water. When gaseous water is cooled sufficiently, the attractions between H2O molecules will be capable of holding them together when they come into contact with each other; the gas condenses, forming liquid H2O. For example, liquid water forms on the outside of a cold glass as the water vapor in the air is cooled by the cold glass.

Explanation:

Hopefully that helps!

4 0
3 years ago
Which of these is an indication that a chemical reaction has occurred?
nevsk [136]

Formation Of A Gas.

3 0
3 years ago
3. I have 10 moles of a gas mixture. If there are 2.7 moles of hydrogen gas
UkoKoshka [18]

Answer:

there are two moles

Explanation:

6 0
3 years ago
What is the density of a gas at STP that has a molar mass of 50.0 g/mol?
Flura [38]

Answer:

2.232 g/L

Explanation:

Assuming 1 mol, volume at STP is 22.4 L so you simply divide 50g by 22.4 L to get density

4 0
3 years ago
Match the atomic particles with their electrical charges.
PilotLPTM [1.2K]

Answer:

proton: positive

electron: negative

neutron: neutral

Looks like you already have it.

7 0
3 years ago
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