Chapter 1, Problem 1.28E

Q. 1) Complete and balanced the following chemical equations. ASsume complete reaction and indicate physical states. (а) NH2OH (aq) + H2SeO4 (aq) → (b) 2 N2 (g) + 5_ 02 (g) → 2 (g) + 2 H2O (1)|→ (c) (CH3):ССH(CO-H)2 (s) + O2 (g) → (d) НЗASO4 (aq) + Sr(OH)2 (aq) →

2. A charged particle is caused to move between two electrically charged plates, as shown here. +) (a) Why does the path of the charged particle bend? (b) What is the sign of the electrical charge on the particle? (c) As the charge on the plates is increased, would you expect the bend- ing to increase, decrease, or stay the same? (d) As the mass of the particle is increased while the speed of the particles remains the same, would you expect the bending to increase, decrease, or stay the same?

9. When a candle has been burning for an hour, its mass is less than it was at the beginning. (a) How is it possible for the candle to lose mass without violating the law of conservation of mass? (b) How might you find the mass of the missing material? 14. Hydrochloric acid reacts with zinc. The chemical equation for this reaction is Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq) a) Classify this reaction. (b) Name the product that forms bubbles in this reaction. How do you know? c) How does the mass of zinc metal change as the reaction proceeds? d) What does the (aq) symbol in the equation mean? 24. Consider this chemical equation: Zn + 2 AgNO3 → Zn(NO3)2 + 2 Ag a) How many atoms of zinc are on the left side of the equation? How many are on the right? (b) How many atoms of silver are on the left side of the equation? How many are on the right? (c) Is the equation balanced? Explain. 25.How are coefficients different from subscripts in equations? 30. Consider this neutralization reaction: HCl +…