Exam 3: Matter and Energy: What Are the Building Blocks of Sustainability

An atom with an atomic mass of 15 belongs to an element with an atomic number of 7. Select the correct distribution of subatomic particles for this atom.

Select the correct pairing of energy type and example.

Most ecosystems have only four or five trophic levels. What limits the number of levels?

How are atoms of the element carbon similar to atoms of the element nitrogen? How are they different?

Select the example of an object or substance moving to a state of high entropy.

A(n) is the smallest subunit of an element that retains all the characteristics of that element.

Goodyear blimps maintain their shape because of the of helium gas acting against the outer wall.

Define the law of conservation of mass and explain whether this law means that calcium atoms in our teeth could have existed millions of years ago in the teeth of dinosaurs.

In a food chain, snakes consume mice, which in turn feed on grasshoppers. The grasshoppers consume grass. How great a biomass of mice could 10,000 kg of grass likely support?

Mara's cross-country coach recommends "carbo-loading" the night before each race with carbohydrate-rich pasta dishes such as spaghetti. Define the terms potential energy and kinetic energy and then apply these terms to the pasta dish and to the race itself.

The body keeps the pH of blood between 7.35 and 7.45. The pH of blood is

The condensation of water droplets on a glass of iced tea is an example of a

The burning of coal, gas, and oil for manufacturing and transportation is a major source of the increase in atmospheric carbon dioxide. The combustion of these fuels is a(n) reaction.

Which term refers to a measure of how vigorously the atoms in a material are moving and colliding with each other?

An atom with 11 protons, 11 neutrons, and 10 electrons would have

Seth watches a big football game along with 20 other fans in a fairly small lounge area. By the end of the first quarter, the room has become quite warm and Seth notices that he is sweating. Explain how the first and second laws of thermodynamics relate to his sweat production and to the increase in room temperature.

Select the example of a compound.

Every atom of the same element must have

is the act of applying force to an object over some distance.

Select the correct description of elements.