A liquid has a density of 1.2 g/cm³ and occupies a volume of 250 cm³. What is the mass of the liquid (Density of materials) ? P43-041 Density of materials checkpoint

300 g In P43-041, the answer must mention density, mass, volume and connect it to Density of materials.

Exam lens: Write the relationship, substitute values only when needed, and finish by interpreting the result. This question asks: A liquid has a density of 1.2 g/cm³ and occupies a volume of 250 cm³. What is the mass of the liquid (Density of materials) ?. The correct response is 300 g In P43-041, the answer must mention density, mass, volume and connect it to Density of materials., because density links mass and volume, so the answer must preserve which quantity is being calculated. In Density of materials, the marking point should connect directly to calculate density when mass and volume are known. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 23 is distinct because it uses this exact question context and the exam lens rather than a generic particle-model sentence.