Answer:
Magnesium carbonate doesn't dissolve in water, only acid, where it will effervesce (bubble).
Step-by-step explanation:
An insoluble metal carbonate reacts with a dilute acid to form a soluble salt. Magnesium carbonate, a white solid, and dilute sulfuric acid react to produce magnesium sulfate. Colourless magnesium sulfate heptahydrate crystals are obtained from this solution.