Sentences with phrase «many oxygen atoms»

He follows the components of an oxygen atom to tell how the universe evolved.

He doesn't say the universe came from a single oxygen atom!

The events that make up the hydrogen and oxygen atoms are affected by their environments.

For example, what must be the nature of physical existents such that the composite, the molecule of water, not only consists of one oxygen atom and two hydrogen atoms, but that they are at a particular distance from each other and in a particular three - dimensional pattern?

Nitrates consist of three oxygen atoms and one nitrogen atom.

Silicone chemistry is extremely complex; the polymer involved in the covering and the interior of the breast implant consists of a polymer of alternating silicon and oxygen atoms with methyl groups attached to the oxygen groups (methyl polydimethylsiloxane).19 The length of the polymer determines whether it is a solid, gel, or liquid.

Researchers looked at the ratios of two forms of oxygen atoms in the minerals deposited in layers in two stalagmites that had formed in a cave in the Himalayan foothills about 200 kilometers north of New Delhi.

A good example of this is the uranyl, -LCB- UO2 -RCB- 2 + ion which is widely prevalent in the environment naturally and also nuclear waste where the two oxygen atoms reside opposite each other and are bonded very strongly to the uranium.

The hydrogen - bearing material is volatile (easily vaporized), and may be in the form of water molecules (two hydrogen atoms bound to an oxygen atom) or hydroxyl molecules (an oxygen bound to a hydrogen) that are loosely bound to the lunar surface.

The components of water ice — hydrogen and oxygen atoms — have been around for much of the universe's history, but of course it's not water till they're combined.

The palladium atoms initially snatch hydrogens from the alcohols but later give them up to oxygen atoms in the solvent, generating water and returning the catalyst to its original state.

Now, new observations of a particular wavelength of infrared light from that galaxy betrays the presence of oxygen atoms that have two electrons missing (in the smaller region depicted in green), researchers report online today in Science.

Spinels consist of densely packed, highly symmetrical planes of oxygen atoms (somewhat like a densely packed box of marbles) where different metallic elements are lodged in the spaces between them.

Like water, it is held together by the powerful bonds between hydrogen and oxygen atoms, so ethanol can not travel through most petroleum pipelines.

The structure of the steps determines whether they remain active or become deactivated by oxygen atoms.

(The one oxygen atom in H2O weighs 16 amu.)

The question then became: could this composite electrode efficiently spur the chemical reaction that rearranges hydrogen and oxygen atoms in water?

(The unusual form of hydrogen let scientists correct results for oxygen atoms lost in H2O, for instance when the bear urinated.)

These oxygens have a partial negative charge (as in the molecule of water) and the oxygen atom attracts the electrons of the bonds more effectively.

The mechanism of the subsequently applied relatively new cooling technique relies on the fact that these molecules exhibit a permanent electric dipole moment (i.e. the negative charge is shifted towards the oxygen atom).

The second - stage reaction strips off the fatty acids» carboxyl group (a carbon atom, two oxygen atoms, and a hydrogen atom) and breaks the remaining hydrocarbon chains into smaller fragments, yielding a light oil.

In the other mechanism posited, one hydrogen atom associates with an oxygen atom to make OH and the other hydrogen atom associates with a cerium atom to make cerium hydride (CeH).

A highly ionized solar oxygen atom would be unlikely to duplicate the behavior of a singly ionized atom from Earth, the researchers said, because the ion from the solar wind would have to regain some of the electrons that got stripped off.

Neutral oxygen atoms have eight protons and eight electrons.

Water molecules are made up of one negatively charged oxygen atom and two positively charged hydrogen atoms.

Depending on the concentration of oxygen atoms, the chain - like slabs were two, three, or four layers thick, sometimes varying within the same material.

The materials are made of strontium, niobium and oxygen atoms, with a layered structure derived from perovskite.

Carbon atoms are colored green, oxygen atoms are red, and nitrogen atoms are blue.

This frees up oxygen atoms, which join up to form ozone molecules on the cooler night side (Icarus, DOI: 10.1016 / j.icarus.2011.08.010).

Oxygen atoms are represented in gray and carbon isotopes are in orange.

During use, lithium ions stored in the graphite flow to the lithium - based electrode, where they form chemical bonds with oxygen atoms, a reaction that generates an electric current.

That's because sequential rings of oxygen atoms exactly match the size, and balance the charge, of potassium ions.

One of the simplest ways of obtaining hydrogen is electrolysis: an electric current splits water molecules into their constituent hydrogen and oxygen atoms.

This schematic depicts a new ORNL - developed material that can easily absorb or shed oxygen atoms.

Instead of a hydrophilic alcohol group (an oxygen - hydrogen molecule bound to a hydrogen - saturated carbon atom), the final lignin polymer contained a hydrophobic aldehyde group (a carbon atom double - bonded to an oxygen atom).

The researchers also found that at high pressures, oxygen atoms are much more compressible than silicon atoms.

Specifically, the authors mixed two types of strands that differed only by the presence or absence of two oxygen atoms.

Oxygen atoms ringing the pore bonded to one water molecule, which then entered the spherical cage under high temperature and pressure (Science, DOI: 10.1126 / science.1206376).

This material, in which carbon substitutes for some of the lattice oxygen atoms, absorbs light at wavelengths below 535 nanometers and has a lower band - gap energy than rutile (2.32 versus 3.00 electron volts).

Scientists at the Department of Energy's Oak Ridge National Laboratory have developed a new oxygen «sponge» that can easily absorb or shed oxygen atoms at low temperatures.

The voltage injects electrons into the oxygen atoms, allowing them to break free from titanium's hold and travel to the electrode, where they pick up carbon atoms from the graphite to form carbon dioxide.

This compound, which complexed with the sodium cation, was the first compound known to display such activity and became known as dibenzo -18-crown-6, an 18 - atom heterocycle containing 6 oxygen atoms.

Tubes made from LSCF have the property of being permeable to oxygen ions — oxygen atoms with an electric charge — and little else.

Water is a simple molecule resembling a pair of Mickey Mouse ears: two hydrogen atoms grab a single oxygen atom.

Opposite charges attract, so water molecules tend to stick to each other as a positive hydrogen atom of one molecule attaches itself to the oxygen atom of its neighbour.

When cerium oxide III is mixed with free radicals, it catalyzes a reaction that effectively defangs the ROS by capturing oxygen atoms and turning into cerium oxide IV.

But any closer investigation of ice and its remarkable properties has to start with water molecules — each with one oxygen atom joined to two hydrogen atoms.

Some 60 related compounds were made involving heterocyclic rings containing 12 to 60 atoms including 4 and 10 oxygen atoms.

«They behave much like enzymes do in living organisms, breaking down the bonds between carbon and oxygen atoms.

The scientists found that the reaction on Fe - ZSM - 5 is based on adsorption of nitrogen monoxide via a positively charged oxygen atom.