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Sodium is easily oxidised, contact with the air will form a thin layer of Sodium Oxide over its surface, which would be considered an impurity.

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What is the reason for filling sealing wax in the space between the terminals of the bulb?

Sealing wax is used around the terminals of a bulb to prevent moisture and air from entering. It helps to maintain a vacuum inside the bulb for efficient operation and to prevent corrosion of the terminals.


Water obtained from natural resources does not show neutral pH. What is the reason behind this?

Water obtained from natural resources does not show neutral pH. What is the reason behind this?The neutral nature of water changes due to its ability to dissociate into H+ and OH- ions.The neutral nature of water changes due to mixing of various salts, bases, and acids, thus changing its pH.The neutral nature of water changes due to mixing of other neutral substances, thus changing its pH.


Does honey have hydrogen peroxide in it?

Yes, honey naturally contains an enzyme called glucose oxidase that produces hydrogen peroxide when honey comes into contact with water. This is one reason why honey has antimicrobial properties.


What metal is obtained from the ore pyrite?

Well, it is an ore of sulphur and definetly not of gold, as you can buy pyrite at quite a low cost, therefore making it quite poplular for rock collectors. another reason it is popular is because of its interesting crystals and the fact that is looks like gold and people can often mistake it for it (unless you see the price!) hence the name 'fools gold'


The chief reason for chlorinating water is to?

Chlorinating water helps to kill harmful bacteria and pathogens, making the water safer to drink. It also helps to prevent the spread of waterborne diseases and improve overall water quality.

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True or false A priori arguments are based on reason alone and not data obtained from experience?

true


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