Which instrument is used to measure mass?

triple beam balance
scales
massometer
graduated cylinder

What is the measured amount of a product obtained from a chemical reaction?

+= + + balance the equation on coefficients, ex. 1,1,1

What is matter? a. anything that has mass and takes up space b. something that has volume and takes up space. c. things that have energy and take up space d. things that take up space but don't have mass