Which option describes energy being released as heat?

A. Lions sleeping after a big meal

B. A baby bird eating a worm

C. A child shivering in the cold

D. A surfer on a surfboard

Created from the ... of ... in layers over long periods of time

How many moles of each element are in one mole of (NH4) 2S

Magnesium reacts with oxygen gas to form magnesium oxide. Which of the following represents the balanced chemical equation? Mg + O2 - -> MgO Mg + O2 - -> 2MgO 2Mg + 2O2 - -> 2MgO 2Mg + O2 - -> 2MgO

When the neutrons produced in the fission of U-236 bombard U-235 to generate more U-236 and perpetuate fission, this is called a: Select the correct answer below: decay series chain reaction sequential fission none of the above

What is the mass and charge of an electron

Which of the following is a physical of a substance A. Reactivity B. Hardness C. Flammability D. Toxicity

In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle.

Is it true that the overall charge of a formula unit for a compound is never zero?

What is a significant ethical dilemma that a drug designer may face? A. A new drug effectively treats skin cancer but may cause minor skin rashes during treatment B. A new drug effectively fights allergies but causes drowsiness. C.

Which part of the factory is most similar to the nucleus of a living cell