23. Baking soda solution will be of most help.
24. Milk should be given.
25. Distilled water is the choice.
<h3><u>Explanation:</u></h3>
23. When someone is having acidity, it means the amount of hydrochloric acid in stomach has increased and this can lead to several problems and discomfort like heart burn and even esophageal reflux. This should be treated with basic solutions which will neutralize the acid. So baking soda is the most appropriate choice which will neutralize the hydrochloric acid forming carbon dioxide, sodium chloride and water.
24. As the child swallows acid, the problems he could face is burning of mucous membrane, severe pain and even stomach can be pierced by burning. These effects need separate treatment, but as a first aid, the child should be given milk as a choice as the acid should be diluted and the contact of acid with mucous membrane should be reduced.
25. Distilled water do have a pH nearest to 7 Because in the rain water, there's often mixture of different acids like sulphuric acid and nitric acid which comes from atmosphere and makes rain water acidic. Carbonated water is acidic due to carbonic acid. Well water and lake water are often basic due to aluminum and magnesium salts. But distilled water doesn't have any impurities.
Magnetic force:Computer hard drives use magnetism to store the data on a rotating disk. More complex applications include: televisions, radios, microwave ovens, telephone systems, and computers. ... Frictional force:Quite often uses of friction can be seen from how things would be without friction.
Answer:
18 grams
Explanation:
The mass of an object is the object's fundamental property. It is the amount or quantity of mater in the object. Irrespective of the object's location or the gravitational force applied on the object, the mass of an object remains the same. In other words, the mass of an object is the same everywhere.
The mass should however not be confused with its weight which depends on the mass and the gravitational force applied on it.
In summary, whether on earth or in the moon, the mass of an object remains the same. If the mass of the object is 18 grams on earth, it will also be 18 grams in the moon.
Answer:
K.E=3802.5JOULE
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