Waves are difficult to describe and compare, so scientists often use models to explain them. In the culminating event, you will need to include a mathematical model to explain how the device or phenomenon you choose demonstrates wave properties. How can you use mathematical models to represent different wave amplitudes or
frequencies? Think about what you use in math class to calculate different numbers for different situations.

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar. question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )