Questions 32 to 35 . select the number or formula which will balance the equation

32) A. 1

33) E. 2

34) C. 12

35) D. Sb₄O₆

Explanation:

32. N₂O₅ + __H₂O → 2HNO₃

left side: 2 H , 2 N, 6 O

right side: 2 H, 2 N, 6 O

Nothing needs to change, so put a 1

33. P₂O₅ + 3H₂O → __H₃PO₄

left side: 6 H, 2 P, 8 O

right side: 3 H, 1 P, 4 O

everything on the right needs to double, so put a 2

34. Sb₄O₆ + __HCl → 4SbCl₃ + 6H₂O

left side: 4 Sb, 6 O, 1 H, 1 Cl

right side: 4 Sb, 6 O, 12 H, 12 Cl

the H and Cl on the left both need to be multiplied by 12, so put a 12

35. + 4NaOH → 4NaSbO₂ + 2H₂O

left side: 4 Na, 4 O, 4 H

right side: 4 Na, 10 O, 4 H, 4 Sb

the left side needs 6 more O and 4 Sb, so add Sb₄O₆

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.