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It mean International Silver company.

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11y ago
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Q: What does ISC mean inside a silver ring?
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If a ring has lsc stamped in it does that mean the diamonds are real?

ISC is Industrial strength corporation which produce fine jewelry. It provides quality natural stones only.

What are the topics of project file chemistry for ISC 2012 to 2013?

For Project topics visit

When an automotive battery is fully charged the sulfuric acid and water mixture will have what specific gravity?

when a battery is fully charged , the amount of sulfuric acid mixed with the water is sufficient to give a specific gravity of about 1.3 when battery is discharged to 50 percent, the specific gravity reading should be 1.2 any specific gravity reading that's less than 1.1 usually indicates a dead batteryThe answer isC. 1.3.

Why is chloro acetic acid stronger than acetic acid?

Actually, benzoic acid is the stronger acid when compared to ethanoic acid. This is due to the delocalisation of the lone pair of electrons on the oxygen atom into the benzene, increasing the polarity of the -OH bond and thus makes the cleaving of the H+ ion easier. The delocalisation of electrons into the benzene ring also stabilises the carboxylate ion. Therefore the position of equilibrium lies more to the right and this shows that benzoic is a more acidic acid. The simplified version is that a benzene ring is electron withdrawing and a methyl group is electron releasing. The electron withdrawing power makes the releasing of the H+ ion easier.

Which one of the following substance is a liquid fuel used in rockets engines?

You didn't provide a list for "Which of the following....", so we don't know what you're looking for. However, kerosene, hydrazine, liquid oxygen, and red fuming nitric acid are among some of the often-used liquid rocket fuels. Commercial organizations generally use things like liquid oxygen and kerosene, which are inexpensive and relatively safe fuels. NASA often prefers fuels with a slightly higher energy like hydrazine, even though hydrazine and RFNO are very expensive, difficult to work with, and VERY hazardous.