题目内容

The international securities issuance model has ( )

A. Cross-border Direct Issuance
B. Depositary receipt
C. Agreement control
D. Cross-border reverse takeover

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Which acid has the largest Ka : HClO2 (aq), HBrO2 (aq), or HIO2 (aq)?

A. HClO2 (aq)
B. HBrO2 (aq)
C. HIO2 (aq)
D. All three acids have the same Ka

Consider the given acid ionization constants. Identify the strongest conjugate base. ( d )Acid KaHNO2 (aq) 4.6 ´ 10-4HCHO2 (aq) 1.8 ´ 10-4HClO (aq) 2.9 ´ 10-8HCN (aq) 4.9 ´ 10-10

A. NO2- (aq)
B. CHO2- (aq)
ClO- (aq)
D. CN- (aq)

Use the data below to find the equilibrium constant (Kc ) for the reaction: A (g) ® 2B (g) + C (g). A (g) ® 2X (g) + C (g) Kc = 1.55B (g) ® X (g) Kc = 25.2

A. 984
B. 26.8
C. 6.10 ´ 10-4
D. 2.44 ´ 10-3

Which term can correctly be applied to the reaction Zn(s) + 2HCl(aq) ® ZnCl2(aq) + H2(g)?

A. neutralization
B. decomposition
C. single replacement
D. double replacement