Question 2 of 5
What do you know about a substance it you know its temperature?

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

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?