Digby wants to determine how many calories are in his bag of chips. Which calorimeter should he use? coffee cup calorimeter bomb calorimeter He could use both types of calorimeters. He cannot use either.

B. bomb calorimeter

Explanation:

The bomb calorimeter is an insulated device that is designed to measure the amount of heat that goes off or is absorbed in a reaction. The device is made in such a way that its internal temperature remains constant. A water bath is placed in the device and heat change in the water bath, the stainless steel and thermometer inside the bomb calorimeter, as well as the actual heat change that occur as a result of the reaction, are all measured to determine the true calorie content of the substance being measured.

A calorie is the amount of energy that is needed to increase the temperature of 1 gram of water by 1 degree celsius. The bomb calorimeter is used to measure the number of calories contained in packaged foods. So Digby can use this device to determine how many calories are in his bag of chips.  

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

it would be a gas formation