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blagie [28]
2 years ago
5

Rusting of iron can be prevented by wrapping iron articles in newspaper true or false​

Chemistry
1 answer:
pantera1 [17]2 years ago
3 0

false, the rusting of iron can be prevented by painting, oiling, greasing or varnishing its surface.

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[Then mother noticed that two children who are watching the game are sick and coughing.She told her son to keep distance from th
Andrew [12]

Answer:

in illustration 1

the mother told her son not to play with the boy having cough because it is a transferable disease which could cause him also to get sick and would get cough.

while in

illustration 2

the mother let the boy play with the boy having asthma because it is not a transferable disease which wold not affect him or any one else.

Explanation:

this is the reason

7 0
2 years ago
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Give two uses of compound under each of the following, in medicine and in industry​
NemiM [27]

Explanation:

#Medicine

Compounds used as medicines are most often organic compounds, which are often divided into the broad classes of small organic molecules (e.g., atorvastatin, fluticasone, clopidogrel) and "biologics" (infliximab, erythropoietin, insulin glargine),

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7 0
3 years ago
What is the mass of 99.0 L of NO2 at STP
Mariana [72]
At STP one mole of any gas occupies 22.4 L

 moles NO2 = 99.0/22.4 = 4.42
mass NO2 = 4.42 mol x 46.0 g/mol=203 g
3 0
3 years ago
2. How do chemical reactions involve energy?
Vesnalui [34]

Answer:Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic. exothermicA description of a chemical reaction that releases heat energy to its surroundings.

6 0
2 years ago
Is cobalt 60 more dangerous than bananas ( potassium 40) and why ?
maxonik [38]

Answer:

To the best of my knowledge, it is because of the amount of gamma rays is given off.

Explanation:

While both are isotopes, Potassium 40 gives off fewer gamma rays compared to Cobalt 60. Potassium 40 isn't really harmful to humans, but Cobalt 60 (I believe) is used in chemotherapy.

7 0
3 years ago
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