DP Chemistry (last assessment 2024)

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Question 18M.1.sl.TZ2.1

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.sl.TZ2.1
Level sl Paper 1 Time zone TZ2
Command term Apply Question number 1 Adapted from N/A
1.
[Maximum mark: 1]
18M.1.sl.TZ2.1

What is the sum of the coefficients when the equation is balanced with the lowest whole number ratio?

__Na2S2O3(aq) + __HCl(aq) → __S(s) + __SO2(g) + __NaCl(aq) + __H2O(l)

A.     6

B.     7

C.     8

D.     9

[1]

Markscheme

C

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