Https://phet. colorado. edu/en/simulation/reactants-product s-and-leftovers (Use this link)
2. Examine the Sandwich formula given at the top, what and how much of those ingredients are needed to make a sandwich?

Read the paragraph. in fact, teenagers contribute a great deal to their community. this is another reason why they must be taken into account when public policy is debated. over eighty percent of teens spend time volunteering at their schools and other organizations. this is an example of statistical analysis layering point of view outlining