Lisa places a substance into a jar. the substance does not change shape to match the shape of the jar. what is the state of matter of the substance? a.) gas b.)liquid c.)solid d.)water

Correct relationship between molecular formula and empirical formula

Why is the melting of ice a physical change ?

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?