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Questions in Grade Middle-school

[Done] Which number is equivalent to 16? A. 256 B. 226 C. 32 D. 18 What value of x makes the equation below true? [tex]7x - 1 = 9[/tex] A. \(\frac{2}{7}\) B. \(\frac{8}{7}\) C. \(\frac{10}{7}\) D. \(\frac{16}{7}\)

[Done] Iron nails do not get rusted when kept in distilled water even for a long time. Give a reason.

[Done] If it is 10:25 p.m., what time was it 11 hours and 55 minutes before that?

[Done] Goitre is rare among people living in coastal areas. Find a reason behind this phenomenon.

[Done] What is hydrolysis?

[Done] The sentence has one word that is incorrect. People have to be a certain height before they are allowed to go on the ride.

[Done] What do we mean when we say [tex]Q = ne[/tex]? Please explain briefly.

[Done] What is water harvesting?

[Done] How much energy is given to each coulomb of charge passing through a 6 V battery?

[Done] What is NADPH\(_2\)? Where is it used?