Sentences with phrase «chemical reactions involving»

The gas is typically destroyed in marine regions by chemical reactions involving water vapour.

There are many chemical reactions involving carbon and energy — but the basics assume CO2 remains CO2.

Due to the temperature dependence on the rates of chemical reactions involving ozone, cooler temperatures also lead to more ozone destruction.

''... has anyone at FDA thought to examine the chemical reactions involving propylene glycol that may take place during the manufacture of pet treats?

A 32 slide resource displaying the variety of chemical reactions involving carboxylic acids, and acyl chlorides.

In earlier experiments, Schulten had shown that certain chemical reactions involving so - called radical pairs can be influenced by weak magnetic fields, like that of a door magnet.

The Antarctic ozone hole forms every Southern Hemisphere spring, when chemical reactions involving chlorine and bromine break apart the oxygen atoms that make up ozone molecules.

DEEP DOWN Gold and other related «iron - loving» metals were trapped deep in the planet by ancient chemical reactions involving sulfur, a new study suggests.

Inside a battery, chemical reactions involving a material called an electrolyte cause electrons to accumulate in the negative terminal, or anode, and flow when it's connected to the positive terminal, or cathode.

In previous years, the Antarctic ozone hole, which is caused by destructive chemical reactions involving CFCs released by human activities, had formed at higher altitudes — above 15 kilometres.

But in 1991, in addition to the high - altitude hole, ozone below 13 kilometres was destroyed by chemical reactions involving the volcanic aerosol.

In today's issue of Science, Cronin and his colleagues report printing a series of interconnected reaction vessels that carry out four different chemical reactions involving 12 separate steps, from filtering to evaporating different solutions.

Is it possible that the good feeling you are experiencing is a chemical reaction involving dopamine?

Finally, you can not prevent the chiles from losing color when pickling; it is a chemical reaction involving the solubility of chlorophyl in the vinegar.

The Cornell group cautions that it doesn't fully understand the chemical reactions involved.

The chemical reactions involved produce a form of gypsum known as flue - gas desulfurization (FGD) gypsum.

Like the poet, microbes that make methane are taking chemists on a road less traveled: Of two competing ideas for how microbes make the main component of natural gas, the winning chemical reaction involves a molecule less favored by previous research, something called a methyl radical.

RICHLAND, Wash. — Like the poet, microbes that make methane are taking chemists on a road less traveled: Of two competing ideas for how microbes make the main component of natural gas, the winning chemical reaction involves a molecule less favored by previous research, something called a methyl radical.

Chemical reactions involve the combination of atoms, not the destruction of atoms.

This vegetarian supplement can enhance the chemical reactions involved in digestion, promote an acid and alkali balance in the body, and help you fight off or prevent infections.

All chemical reactions involve the transfer of electrons.

After they enter the cells, other enzymes act to speed up or regulate the chemical reactions involved with «metabolizing» these compounds.

Nuclear Reactions • Nuclear reactions involve changes in the nucleus, whereas chemical reactions involve the loss, gain, and sharing of electrons.

In early 1976, Rowland and Molina discovered that a chemical reaction involving chlorine nitrate might reduce ozone destruction from their previous estimate of 7 - 13 % to about 7 %.

Not exact matches

Alright, so activation energy is involved in chemical reactions all around us, but how is this useful and practical for our everyday lives?

Similarly — and our common sense, modern philosophy, and the vast bulk of scientists are in agreement on this — while life and non-life both involve chemical reactions, life is qualitatively different in some very important ways.

Concentrations of X and Y do not smoothly approach their equilibrium values (as do concentrations of all chemicals involved in ordinary reactions) but rather these concentrations oscillate around the condition of equilibrium.

The release of inflammatory chemicals called «cytokines» (proteins secreted by specific cells involved in immunity and in inflammation) leads to biochemical reactions involving neurotransmitters.

Such intense heat, according to food chemistry expert Harold McGee, triggers «browning reactions, exceedingly complex chemical changes that involve mostly proteins and carbohydrates.»

In fact, raw cacao nibs are one of the best food sources of magnesium: an essential mineral involved in over 300 chemical reactions in our body, from nerve function to bone health.

Throughout my science education, I have dutifully memorized facts: the stages of photosynthesis, the enzymes involved in the Krebs cycle, how to balance equations in chemical reactions.

In schizophrenia, excessive oxidation — which involves the same type of chemical reaction that causes metal to corrode into rust — is widely thought to cause inflammation and cellular damage.

Reactions may involve cracking or synthesising organic chemicals, but catalysts can be inorganic, organometallic — or even biological, as in enzymes and catalytic antibodies.

Methane, for example, is the second strongest contributor to climate warming after CO2 and is also an ozone precursor: chemical reactions in the atmosphere involving methane produce ozone, a pollutant that presents significant health risks.

Because the approach involves chemical reactions between gases, liquids and solids, moving from concept to demonstration was no small feat.

«This reaction only becomes truly important if we can show that there is some kind of selective advantage to the network of chemicals involved.»

In particular, they have looked at the pre-treatment stage, focusing on steam explosion, which involves «pressure - cooking» the biomass, to drive a number of chemical reactions.

Practically all biochemical processes involve enzymes that accelerate chemical reactions.

The scientists investigated a chemical reaction that involved breaking carbon - to - iodine bonds in the organic molecule iodobenzene, by means of metallic copper, a common catalyst.

Now, using several complementary research tools, Goodell and colleagues report new details of this unexpected mechanism at work, one that surprisingly does not involve enzymes, the usual accelerators of chemical reactions.

This adhesion process, which involves no chemical reaction, only takes a few seconds.

To produce an explosion, the chemicals involved need to be well mixed so that the reaction snowballs instead of sputtering out.

The chemical mechanism, discovered by scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and UC Berkeley, could also broaden our understanding of basic chemical reaction processes involving common helpers, called catalysts, like copper and gold.

Frank Gu, a professor in the Faculty of Engineering at the University of Waterloo and Canada Research Chair in Nanotechnology Engineering, is the senior researcher on the team that was the first to find that photocatalysis — a chemical reaction that involves the absorption of light by nanoparticles — can completely eliminate naphthenic acids in oil sands wastewater, and within hours.

These processes are the key to understanding chemical and biochemical reactions, as it is the «redistribution» of electrons that is involved in the formation of new chemical bonds.

The last step, which makes the process cost - effective, involves recycling the chemicals used in the different reactions.

These vents (also know as black smokers) expel minerals dissolved by water which bacteria use to in chemical reactions to produce energy and support ecosystems involving larger multi-cellular lifeforms that feed off of of the massive and fast - growing bacterial populations.

The team applied the technology, called pressurized magic angle spinning, to studies involving underground carbon storage, fracking wells, and tracking complex chemical reactions in fuel production.

Why It Matters: The traditional view of the mineralization process involves some very slow chemical reactions between carbonic acid and the host reservoir rock that take centuries or even millennia to convert a significant amount of injected carbon dioxide into carbonates.

Over-the-counter antihistamines, which work by blocking an immune system chemical called histamine that's involved in allergic reactions, can help unstuff your nose.