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PilotLPTM [1.2K]
3 years ago
13

3. The dry air in the Alps helped to prevent damage to the cells in the Iceman's body.

Chemistry
1 answer:
Sever21 [200]3 years ago
3 0

Answer:

False

Explanation:

because they do not prevent damage they make damage

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What is the source of the electrons produced in beta decay
Vitek1552 [10]

Answer:

Beta rays are electrons.

Explanation:

A neutron in the nucleus of  a radioactive atom decays into a proton and an electron, which is emitted from the atom.

8 0
3 years ago
Draw the Lewis structure for methane (CH4) and ethane (C2H6) in the box below. Then predict which would have the higher boiling
Alinara [238K]

Answer:

Ethane would have a higher boiling point.

Explanation:

In this case, for the lewis structures, we have to keep in mind that all atoms must have <u>8 electrons</u> (except hydrogen). Additionally, each carbon would have <u>4 valence electrons</u>, with this in mind, for methane we have to put the hydrogens around the carbon, and with this structure, we will have 8 electrons for the carbon. In ethane, we will have a bond between the carbons, therefore we have to put three hydrogens around each carbon to obtain 8 electrons for each carbon.

Now, the main difference between methane and ethane is an <u>additional carbon</u>. In ethane, we have an additional carbon, therefore due to this additional carbon, we will have <u>more area of interaction</u> for ethane. If we have more area of interaction we have to give <u>more energy</u> to the molecule to convert from liquid to gas, so, the ethane will have a higher boiling point.

I hope it helps!

7 0
3 years ago
How do you decide whether a sample of matter is a solid,liquid,or gas?
prohojiy [21]
As solid is a hard surface and it can be changed to any shape although it is placed to any container whereas liquid can be poured from one container to another and gases have less bulk so they are not exaggerated by gravity
8 0
3 years ago
Walls made of paraffin wax, a covalent compound, help keep the temperature in a room steady as night changes into day and day in
Over [174]
The wall would absorb extra heat during the day when the sun is out, then release the heat back into the room when the sun goes down.
8 0
3 years ago
Read 2 more answers
What is not true about most combustion reactions? a) elemental carbon is a product b) energy is released c) a carbon-based fuel
White raven [17]

It would be A bc carbon is NOT usually a product. You can find out more about the by searching combustion reactions, then u should be able to answer the questions on your own.

8 0
3 years ago
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