Problem: OPTIONS:
- component reaction
- spontaneous mutation
- metabolism
- composition reaction
Q: Answer the following question given this paragraph: In this equation, two substances combine to make a single substance. This is a composition reaction. Two different substances react to make two new substances. This does not fit the definition of either a composition reaction or a decomposition reaction, so it is neither. In fact, you may recognize this as a double-replacement reaction. A single substance reacts to make multiple substances. This is a decomposition reaction. Q: What type of reaction causes two substances to combine to make a single substance? A:
Answer: composition reaction
Problem: OPTIONS:
- stimulation
- inertia
- transmission
- acceleration
Q: Answer the following question given this paragraph: Acceleration occurs when a force is applied to a moving object. Q: What occurs when force is applied to a moving object? A:
Answer: acceleration
Problem: OPTIONS:
- molecule
- ecosystem
- world
- system
Q: Answer the following question given this paragraph: 6.3 The Laws of Thermodynamics In studying energy, scientists use the term "system" to refer to the matter and its environment involved in energy transfers. Everything outside of the system is called the surroundings. Single cells are biological systems. Systems can be thought of as having a certain amount of order. It takes energy to make a system more ordered. The more ordered a system is, the lower its entropy. Entropy is a measure of the disorder of a system. As a system becomes more disordered, the lower its energy and the higher its entropy become. A series of laws, called the laws of thermodynamics, describe the properties and processes of energy transfer. The first law states that the total amount of energy in the universe is constant. This means that energy can't be created or destroyed, only transferred or transformed. The second law of thermodynamics states that every energy transfer involves some loss of energy in an unusable form, such as heat energy, resulting in a more disordered system. In other words, no energy transfer is completely efficient and tends toward disorder. Q: In studying energy, what term do scientists use to refer to the matter and its environment involved in energy transfers? A:
Answer:
system