DP Chemistry (first assessment 2025)

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Reactivity 2. How much, how fast and how far? » Reactivity 2.1—How much? The amount of chemical change » Reactivity 2.1.1—Chemical equations show the ratio of reactants and products in a reaction. Deduce chemical equations when reactants and products are specified.

Reactivity 2.1.1—Chemical equations show the ratio of reactants and products in a reaction. Deduce chemical equations when reactants and products are specified.

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Directly related questions

22N.1A.HL.TZ0.29:
What is the coefficient for H⁺ when the equation below is balanced?

__Pb (s) + __NO₃⁻ (aq) + __H⁺ (aq) → __Pb²⁺ (aq) + __NO (g) + __H₂O (l)

A. 2

B.  4

C.  6

D.  8
22N.1A.HL.TZ0.29:
What is the coefficient for H⁺ when the equation below is balanced?

__Pb (s) + __NO₃⁻ (aq) + __H⁺ (aq) → __Pb²⁺ (aq) + __NO (g) + __H₂O (l)

A. 2

B.  4

C.  6

D.  8
19N.1A.SL.TZ0.2:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__MnO₂ (s) + __HCl (aq) → __MnCl₂ (aq) + __H₂O (l) + __Cl₂ (g)

A. 6

B. 7

C. 8

D. 9
19N.1A.SL.TZ0.2:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__MnO₂ (s) + __HCl (aq) → __MnCl₂ (aq) + __H₂O (l) + __Cl₂ (g)

A. 6

B. 7

C. 8

D. 9
19N.1A.SL.TZ0.2:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__MnO₂ (s) + __HCl (aq) → __MnCl₂ (aq) + __H₂O (l) + __Cl₂ (g)

A. 6

B. 7

C. 8

D. 9
19N.1A.SL.TZ0.2:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__MnO₂ (s) + __HCl (aq) → __MnCl₂ (aq) + __H₂O (l) + __Cl₂ (g)

A. 6

B. 7

C. 8

D. 9
19N.2.SL.TZ0.6a(i):
Deduce the equation for the decomposition of guanidinium nitrate.
19N.2.SL.TZ0.6a(i):
Deduce the equation for the decomposition of guanidinium nitrate.
19N.2.SL.TZ0.a(i):
Deduce the equation for the decomposition of guanidinium nitrate.
19N.2.SL.TZ0.6a(i):
Deduce the equation for the decomposition of guanidinium nitrate.
19N.2.SL.TZ0.6a(i):
Deduce the equation for the decomposition of guanidinium nitrate.
19N.2.SL.TZ0.a(i):
Deduce the equation for the decomposition of guanidinium nitrate.
21M.1A.SL.TZ2.4:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__Sn(OH)₄(aq) + __NaOH (aq) → __Na₂SnO₃(aq) + __H₂O (l)

A. 4

B. 5

C. 6

D. 7
21M.1A.SL.TZ2.4:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__Sn(OH)₄(aq) + __NaOH (aq) → __Na₂SnO₃(aq) + __H₂O (l)

A. 4

B. 5

C. 6

D. 7
21M.1A.SL.TZ2.4:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__Sn(OH)₄(aq) + __NaOH (aq) → __Na₂SnO₃(aq) + __H₂O (l)

A. 4

B. 5

C. 6

D. 7
21M.1A.SL.TZ2.4:
What is the sum of the coefficients when the equation is balanced with whole numbers?

__Sn(OH)₄(aq) + __NaOH (aq) → __Na₂SnO₃(aq) + __H₂O (l)

A. 4

B. 5

C. 6

D. 7
21M.2.SL.TZ1.1e(i):
Write the equation for this reaction.
21M.2.SL.TZ1.1e(i):
Write the equation for this reaction.
21M.2.SL.TZ1.e(i):
Write the equation for this reaction.
21M.2.SL.TZ1.1e(i):
Write the equation for this reaction.
21M.2.SL.TZ1.1e(i):
Write the equation for this reaction.
21M.2.SL.TZ1.e(i):
Write the equation for this reaction.
21M.2.SL.TZ2.1c(i):
Write the equation for the reaction of Ca(OH)₂(aq) with hydrochloric acid, HCl (aq).
21M.2.SL.TZ2.1c(i):
Write the equation for the reaction of Ca(OH)₂(aq) with hydrochloric acid, HCl (aq).
21M.2.SL.TZ2.c(i):
Write the equation for the reaction of Ca(OH)₂(aq) with hydrochloric acid, HCl (aq).
21M.2.SL.TZ2.1c(i):
Write the equation for the reaction of Ca(OH)₂(aq) with hydrochloric acid, HCl (aq).
21M.2.SL.TZ2.1c(i):
Write the equation for the reaction of Ca(OH)₂(aq) with hydrochloric acid, HCl (aq).
21M.2.SL.TZ2.c(i):
Write the equation for the reaction of Ca(OH)₂(aq) with hydrochloric acid, HCl (aq).
21M.2.SL.TZ1.1d(i):
Write the equation for this reaction.
21M.2.SL.TZ1.1d(i):
Write the equation for this reaction.
21M.2.SL.TZ1.d(i):
Write the equation for this reaction.
21M.2.SL.TZ1.1d(i):
Write the equation for this reaction.
21M.2.SL.TZ1.1d(i):
Write the equation for this reaction.
21M.2.SL.TZ1.d(i):
Write the equation for this reaction.
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3c(vi): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3c(vi): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.c(vi): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3c(vi): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3c(vi): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.c(vi): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.a(ii):
Write an equation for the reaction of white phosphorus (P₄) with chlorine gas to form phosphorus trichloride (PCl₃).
21N.2.SL.TZ0.3c(iii): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3c(iii): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.c(iii): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3c(iii): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.3c(iii): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
21N.2.SL.TZ0.c(iii): State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
22M.2.SL.TZ1.1a(i):
Write a balanced equation for the reaction that occurs.
22M.2.SL.TZ1.1a(i):
Write a balanced equation for the reaction that occurs.
22M.2.SL.TZ1.a(i):
Write a balanced equation for the reaction that occurs.
22M.2.SL.TZ1.1a(i):
Write a balanced equation for the reaction that occurs.
22M.2.SL.TZ1.1a(i):
Write a balanced equation for the reaction that occurs.
22M.2.SL.TZ1.a(i):
Write a balanced equation for the reaction that occurs.
22M.2.SL.TZ2.5b:
Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.
22M.2.SL.TZ2.5b:
Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.
22M.2.SL.TZ2.b:
Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.
22M.2.SL.TZ2.5b:
Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.
22M.2.SL.TZ2.5b:
Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.
22M.2.SL.TZ2.b:
Deduce the overall cell reaction including state symbols. Use section 7 of the data booklet.
22N.1A.HL.TZ0.29:
What is the coefficient for H⁺ when the equation below is balanced?

__Pb (s) + __NO₃⁻ (aq) + __H⁺ (aq) → __Pb²⁺ (aq) + __NO (g) + __H₂O (l)

A. 2

B.  4

C.  6

D.  8
22N.1A.HL.TZ0.29:
What is the coefficient for H⁺ when the equation below is balanced?

__Pb (s) + __NO₃⁻ (aq) + __H⁺ (aq) → __Pb²⁺ (aq) + __NO (g) + __H₂O (l)

A. 2

B.  4

C.  6

D.  8

Sub sections and their related questions

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