13. Food is fuel. When you eat a healthy breakfast it fuels you with energy for the day. In this first questions you will identify the amount of energy in
a student's early snack. A student usually eats a bag of 20 peanuts as a
snack between classes. He conducts a calorimetry experiment to
determine how much energy he is obtaining. Mass of Water 100g Initial
Temperature 25°C Final Temperature 85°C Using the above data, calculate
the amount of joules the peanut contains.*

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

One does not belong why? ice, gold ,wood ,diamond and table salt