Answer the following question given this paragraph: A solid is like a liquid in that particles are in contact with each other. Solids are unlike liquids in that the intermolecular forces are strong enough to hold the particles in place. At low enough temperatures, all substances are solids (helium is the lone exception), but the temperature at which the solid state becomes the stable phase varies widely among substances, from 20 K (253C) for hydrogen to over 3,900 K (3,600C) for carbon. The solid phase has several characteristics. First, solids maintain their shape. They do not fill their entire containers like gases do, and they do not adopt the shape of their containers like liquids do. They cannot be easily compressed like gases can, and they have relatively high densities. Solids may also demonstrate a variety of properties. For example, many metals can be beaten into thin sheets or drawn into wires, while compounds such as NaCl will shatter if they are struck. Some metals, such as sodium and potassium, are rather soft, while others, such as diamond, are very hard and can easily scratch other substances. Appearances differ as well: most metals are shiny and silvery, but sulfur (a nonmetal) is yellow, and ionic compounds can take on a rainbow of colors. Solid metals conduct electricity and heat, while ionic solids do not. Many solids are opaque, but some are transparent. Some dissolve in water, but some do not. Figure 10.13 "Properties of Solids" shows two solids that exemplify the similar and dissimilar properties of solids. Figure 10.13 Properties of Solids. Q: What state of matter is like a liquid in that particles are in contact with each other, but unlike liquids in that the intermolecular forces are strong enough to hold the particles in place? Choices: - plasmas - gases - fluids - solids A:
solids
Answer the following question given this paragraph: Functional Groups Functional groups are groups of atoms that occur within molecules and confer specific chemical properties to those molecules. They are found along the "carbon backbone" of macromolecules. This carbon backbone is formed by chains and/or rings of carbon atoms with the occasional substitution of an element such as nitrogen or oxygen. Molecules with other elements in their carbon backbone are substituted hydrocarbons. The functional groups in a macromolecule are usually attached to the carbon backbone at one or several different places along its chain and/or ring structure. Each of the four types of macromoleculesproteins, lipids, carbohydrates, and nucleic acidshas its own characteristic set of functional groups that contributes greatly to its differing chemical properties and its function in living organisms. Q: Functional groups are groups of atoms that occur within molecules and confer specific chemical properties to those molecules. they are found along the "carbon backbone" of what? Choices: - inorganic molecules - functional molecules - micromolecules - macromolecules A:
macromolecules
Q: Answer the following question given this paragraph: At the poles, the Sun's rays are least direct. Much of the area is covered with ice and snow, which reflect a lot of sunlight. Temperatures are lowest here. Q: Where are temperatures the lowest? Choices: - over the oceans - at the equator - in asia - at the poles A:
A: at the poles
Question: Answer the following question given this paragraph: Radioactive decay involves the emission of a particle and/or energy as one atom changes into another. In most instances, the atom changes its identity to become a new element. There are four different types of emissions that occur. Q: What involves the emission of a particle and/or energy as one atom changes into another? Choices: - spontaneous mutation - atomic transformation - enthalpy - radioactive decay A:
Answer: radioactive decay
*Question*
Answer the following question given this paragraph: Yeasts are crucial for the fermentation process that makes beer, wine, and bread. Fermentation occurs in the absence of oxygen and allows the first step of cellular respiration, glycolysis, to continue. Q: What is crucial for the fermentation progress in making bread? Choices: - larvae - fruit - cold - yeast A:
**Answer**
yeast
Answer the following question given this paragraph: Q: Where does an electron move to after it absorbs energy? Choices: - another electron - atomic orbit - a shell closer to the nucleus - a shell farther from the nucleus A:
a shell farther from the nucleus