Whether the bead, when exposed to the oxidation flame, exhibits any color, and whether the color remains after the bead shall have cooled, or whether the color fades.
When exposed to heat it is converted partially into peroxide, when it has a dark green color.
The hectic fever occasioned by ulcers of the lymphatic glands, when exposed to the air, does not differ from that attending pulmonary consumption, being accompanied with night-sweats and occasional diarrhoea.
Solutions of ammonia, when exposedto the atmosphere, give off a part of their ammonia in accordance with the laws of the solution of gases in liquids, which we have already considered.
When exposed to heat, in contact with air and water, it first swells, then fuses, and finally burns.
Strictly speaking, however, the word rust applies only to the oxyd, which forms on the surface of iron, when exposed to air and moisture, which oxyd appears to be united with a small portion of carbonic acid.
Wood, when exposed to moisture, also undergoes the putrid fermentation and becomes rotten.
When exposed to the air oil of turpentine absorbs ozone; with iodine it detonates violently.
When exposed to the air in a thick layer it does not completely dry, and in a thin layer only after considerable time; but when pressed with the finger always shows a certain stickiness.
Owing to the mode of preparation, the solution always contains some nitric acid and readily decomposes, when exposed to light and air, whereby it becomes useless.
In a fluid state the oil, when exposed to the air, becomes resinous and loses its property to crystallize.
When exposed to heat in a glass retort over a spirit lamp it readily melts into a liquid, which being further heated boils with explosive jets.
In the feline genus we observe that the iris can be contracted much closer than in mankind, when exposed to a vivid glare; but they also expand to a much greater degree when obscurity sets in.
These mummies, so long as they were kept in a dry place, were unaltered; but were soon decomposed, and emitted an unpleasant effluvium, when exposed to atmospheric moisture.
When exposed to a moist atmosphere, zinc becomes covered with a thin film of oxide, perfectly insoluble in ordinary water; but, if the water should be charged with common salt, a considerable quantity may be dissolved.
The pure carbonate of soda for medicinal use is in colourless and transparent rhombic octahedrons; when exposed to air, the crystals effloresce and crumble.
When exposed to the sun and air, the water in green wood rapidly evaporates.
When exposed to the sun and wind or to high temperatures in a drying room, the water will evaporate more rapidly from the outer than from the inner parts of the piece, and more rapidly from the ends than from the sides.
Very hard, heavy, strong, tough, and flexible, but not durable in contact with the soil or when exposed.
When exposed to the air, this clay immediately becomes indurated in so great a degree, as to require a smart blow to break it.
When exposed to a violent fire, it was converted into a true quick-lime, and had every other quality of a calcarious earth.
In a dry state mahogany Is very durable, and not liable to the attack of worms, but, when exposed to the weather it does not last long.
We have ample proof, moreover, that coal, when exposedto the air, undergoes a kind of distillation, in which the evolution of carbonic acid and hydrocarbon gases is a necessary and prominent feature.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "when exposed" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
