alleryStart learning →12 g and 8 g react fully, giving 15 g solid plus gas only. Gas mass?
A3 g
B7 g
C20 g
D5 g
Answer & Solution
Correct answer: D. 5 g
The total 20 g of reactants leaves 5 g for gas after accounting for 15 g of solid.
Keep practising Matter
Browse all Matter questions for ICSE Class 8, or explore more Chemistry topics.
Related questions
Which name describes a gas changing directly into a solid?During condensation of a pure vapour, its particles generally become?Water vaporises without reacting. What is chemically unchanged?What causes gas pressure on a container wall?In a non-reacting gas model, a collision can change which property?Gas temperature rises. What increases in the particle model?On compressing a gas without state change, what shrinks?A liquid flows. What is true of the forces between its particles?