No. Not with atmospheric oxygen. O2. Radical oxygen in the body is O^2-, so the antioxidant binds with the radical and in solution.  

To oxidize means to take electrons, which O^2- does and that makes it a somewhat harmful radical. An antioxidant is just being reduced by it's binding with radical oxygen.

From Fas.org/nuke

Heavy water is used in certain types of nuclear reactors, where it acts as a neutron moderator to slow down neutrons so that they are more likely to react with the fissile uranium-235 than with uranium-238, which captures neutrons without fissioning. The CANDU reactor uses this design.

2NH₄Cl + BaF₂ = 2NH₄F + BaCl₂

Just a double replacement reaction I think.

Ionocytes help fish to regulate the concentration of salt in the water that they live in.

Do you mean...,

8.60 X 10^(-3)

or

8.60 X 10^3

?

If I do not hear back from you by tomorrow I'll do this simple combustion problem both ways, but you could save me the work by using the proper notation. This...^...means to raise to a power.

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First the balanced equation,

CH4 + 2O2 --> CO2 + 2H2O

------First, 8.60 X 10^(-3) … Read more

Rotting of fruit is caused when the fruit mixes with oxygen and other gasses in the air.  Since the chemicals are mixing, it is a chemical change.  Likewise, a marshmallow burning is a chemical change because it mixes with gasses.

Not sure.

We synthesize all amino acids in our body, save seven amino acids called the essential amino acids we get from food. Not knowing what pills you are talking about I do not know if the pills contain the amino acids we call essential or are the synthesized amino acids that, perhaps, someone is not … Read more

Adenosine triphosphate of course!

The end phosphate group is subject to hydrolysis, thus leaving ADP and the attachment of the phosphate group to another molecule is the energetic reaction here. It is not the hydrolysis so much, even though the last phosphate group on ATP is highly energetic and unstable, it is the attachment of this … Read more

Ultimately, sustaining life.

The first thing space exploration missions look for when they discover a new planet is the likelihood that the planet can maintain liquid at its surface, because it is vital for life.

And so for us, without liquid we wouldn't have water to drink. Which keeps us alive!

Energy, of course.

That is the exact way of it. Forming bonds release energy, not breaking bonds as some will tell you.

For instance, when ATP loses a phosphate group many in biology say that is the energetic reaction. Actually it is the attachment of that phosphate group to some molecule that is energetic in the conformational … Read more

A substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together, e.g., many synthetic organic materials used as plastics and resins.

Because of their broad range of properties, both synthetic and natural polymers play an essential and ubiquitous role in everyday life.

Your balanced equation. ( standard for this type problem )

2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O

------We work in grams because that is what is on my periodic table.

21 kg gasoline = 21,000 grams

82 kg oxygen = 82,000 grams

------get moles of reactants

21,000 grams gasoline (1 mole/114.224 g) = 183.85 moles gasoline

82,000 g oxygen (1 mole O2/32 … Read more

Try lemons, cut one in half and rub it into your hands....or Apple cider vinegar....they both are used to remove odors, but I don't know if they'll work, but it's worth a try!

No, oxidation cannot take place without reduction and vice versa because oxidation involves the loss of electrons while reduction is the process which describes the gaining of electrons.  The two processes work in harmony with each other because, as the electrons leave a material through oxidation, they move into another material through reduction.

I didn't think that there was any real difference until I looked at this site and saw that I was wrong.

Look At All the Colors…of Silica Gel | Molecular Sieve Mavens

hengyeusa.com/community/look-at-all-the-colors-of-silica-gel

Assuming a helium atom could lose an electron what do you think the overall electrostatic charge would be if the balance were disturbed by losing an NEGATIVELY charged particle?

Nothing.

CaCO3 does not react with O2, but it can decompose.

Their valence shells are filled so they only interact with other elements under controlled conditions, at least some of them do. They all have a full eight electron in their valence shell, except helium

Phosphorus = 30.97 g/mol

Phosphorus Pentoxide (PO5) = 110.97 g/mol

30.97/110.97 * 100

= 28% phosphorus in phosphorus pentoxide

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Tin, Iron for building infrastructures, aluminum for food cans, drinks, etc, copper, nickel, steel, lead, magnesium for car wheels, silver