IB Chemistry HL

IB Chemistry HL

University

23 Qs

quiz-placeholder

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IB Chemistry HL

IB Chemistry HL

Assessment

Quiz

Chemistry

University

Hard

NGSS
HS-PS1-5, HS-PS1-4, HS-PS1-2

+5

Standards-aligned

Created by

Charles Martinez

Used 3+ times

FREE Resource

23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which statements are correct for ionic compounds?

I. Lattice energy increases as ionic radii increase.

II. Within the same group, the melting point of salts tends to decrease as the radius of the cation increases.

III. Solubility in water depends on the relative magnitude of the lattice energy compared to the hydration energy.

I and II only

I and III only

II and III only

II and III only

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the standard enthalpy of formation, in kJ mol–1, of IF (g)?

IF7 (g) + I2 (s) → IF5 (g) + 2IF (g) ΔH = –89 kJ

ΔHf (IF7) = –941 kJ mol–1

ΔHf (IF5) = –840 kJ mol–1

–190

–95

+6

+95

Tags

NGSS.HS-PS3-1

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which equation represents the lattice enthalpy of magnesium sulfide?

MgS (s) → Mg (g) + S (g)

MgS (s) → Mg+ (g) + S (g)

MgS (s) → Mg2+ (g) + S2– (g)

MgS (s) → Mg (s) + S (s)

Tags

NGSS.HS-PS1-4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The rate expression for the reaction X (g) + 2Y (g) → 3Z (g) is

rate = k[X]0 [Y]2

By which factor will the rate of reaction increase when the concentrations of X and Y are both increased by a factor of 3?

6

9

18

27

Tags

NGSS.HS-PS1-5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which combination describes the PH4+ ion?

Tetrahedral; sp3 hybridization

Square Planar, sp3 hybridization

Tetrahedral, sp2 hybridization

Square Planar, sp2 hybridization

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which species have resonance structures?

I. Ozone, O3

II. Carbon dioxide, CO2

III. Benzene, C6H6

I and II only

I and III only

II and III only

I, II and III

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which equation represents enthalpy of hydration?

Na(g) → Na+(aq) + e

Na+(g) → Na+(aq)

NaCl(s) → Na+(g) + Cl(g)

NaCl(s) → Na+(aq) + Cl(aq)

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

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