Question

write the denominator of rational number 257/500 in the form 2m×5n
where m and n are non negative integers .write its decimal expansion without actual division ​

Answer 1

Answer:

5x

3 -3−

3x

2)2)

÷x2Which of the following statements is not true for the chemical equation?

2N₂O, → 4NO₂ + O₂

(A) 2 mol of N₂O, on dissociation gives 4 mol of NO, and 1 mol of O

(B) 1 mol of N₂O5 on dissociation gives 2 mol of NO, and 0.5 mol of O (C) 2 g of N₂O, on dissociation gives 4 g of NO and 1 g of O₂

(D) 216 g of N₂O, on dissociation gives 184 g of NO, and 32 g of O₂5x

$3 -$

3x

$2)$

÷x2

Step-by-step explanation:

5x

3 -3−

3x

2)2)

÷x2Which of the following statements is not true for the chemical equation?

2N₂O, → 4NO₂ + O₂

(A) 2 mol of N₂O, on dissociation gives 4 mol of NO, and 1 mol of O

(B) 1 mol of N₂O5 on dissociation gives 2 mol of NO, and 0.5 mol of O (C) 2 g of N₂O, on dissociation gives 4 g of NO and 1 g of O₂

(D) 216 g of N₂O, on dissociation gives 184 g of NO, and 32 g of O₂5x

$3 -$

3x

$2)$

÷x2