1. Complete and balance the reactions below: a) NaOH(aq) + HNO3(aq) —> b) Ca(OH)2(aq) + H2SO4(aq) —>
2. Write balanced equations for the following chemicalschemes: C → CO2 → H2CO3 → Na2CO3
3. Classify the following salts as either acidic, basic orneutral: NaCl, Na2SO3, BaOHCl, MgSO4, NH4Br, Na2CO3and LiHSO4.
4. For the solution of a strong acid I. It has a sour taste. II. It contains more OH- ions than H+ ions. III. When it reacts with Ca, H2 is produced.Which of the above is (are) always correct?
A. I only
B. II only
C. I and III
D. I and II
E. II and III

irinka15012002    1   12.05.2020 12:23    1