Question

The following sentences have not been edited. There is one mistake in each sentence. Identify the

error and write the correct sentence (Do any four): -

(i) One of the boy has lost his book.

(ii) There were mango trees on every side of the road.

(iii) Suzanne is an European girl.

(iv) The cruel hunter killed five deers.

(v) A ten years old girl won the first prize.

(vi) If you will not work hard, you will fail. 4x1=4​

Answer 1

Answer:

The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula. Thus, the symbol “2 NaHCO3” indicates two units of sodium bicarbonate, which contain 2 Na atoms, 2 H atoms, 2 C atoms, and 6 O atoms (2 X 3= 6, the coefficient times the subscript for O)is