Q: Answer the following question given this paragraph: Carbohydrates, proteins, and lipids contain energy. When your body digests food, it breaks down the molecules of these nutrients. This releases the energy so your body can use it. Q: When your body digests food, it breaks down the molecules of nutrients and releases what? A:

OPTIONS:
- waste materials
- gas
- calories
- energy

A: energy

input: OPTIONS:
- diatoms
- mollusks
- Ducks
- echinoderms Now, answer this question: Answer the following question given this paragraph: Echinoderms have a unique water vascular system with tube feet. This allows slow but powerful movement. Q: What types of living beings have water vascular systems and unique tube feet? A:
A:
output: echinoderms

Answer the following question given this paragraph: Volume is a measure of the amount of space that a substance or an object takes up. The basic SI unit for volume is the cubic meter (m 3 ), but smaller volumes may be measured in cm 3 , and liquids may be measured in liters (L) or milliliters (mL). How the volume of matter is measured depends on its state. Q: What is a measure of the amount of space that a substance or an object occupies? A:

OPTIONS:
- mass
- density
- power
- volume

Answer: volume

Problem: OPTIONS:
- couple and reforming
- fixing and reforming
- turn and reforming
- breaking and reforming
Q: Answer the following question given this paragraph: Stereoisomers Molecules with the same connectivity but different arrangements of the atoms in space are called stereoisomers. There are two types of stereoisomers: geometric and optical. Geometric isomers differ in the relative position(s) of substituents in a rigid molecule. (For more information on stereoisomers, see Chapter 23 "The ", Section 23.4 "Coordination Compounds". ) Simple rotation about a CC bond in an alkene, for example, cannot occur because of the presence of the bond. The substituents are therefore rigidly locked into a particular spatial arrangement (part (a) in Figure 2.16 "Some Simple (a) Alkenes, (b) Alkynes, and (c) Cyclic Hydrocarbons"). Thus a carboncarbon multiple bond, or in some cases a ring, prevents one geometric isomer from being readily converted to the other. The members of an isomeric pair are identified as either cis or trans, and interconversion between the two forms requires breaking and reforming one or more bonds. Because their structural difference causes them to have different physical and chemical properties, cis and trans isomers are actually two distinct chemical compounds. Q: What is required for interconversion between the two forms of an isomeric pair? A:
Answer: breaking and reforming

Problem:OPTIONS:
- water
- nitrogen
- dioxide
- oxygen

Answer the following question given this paragraph: To predict the relative stabilities of metal complexes with different ligands. One of the most important properties of metallic elements is their ability to act as Lewis acids that form complexes with a variety of Lewis bases. A metal complex consists of a central metal atom or ion that is bonded to one or more ligands (from the Latinligare, meaning "to bind"), which are ions or molecules that contain one or more pairs of electrons that can be shared with the metal. Metal complexes can be neutral, such as Co(NH3)3Cl3; positively charged, such as [Nd(H2O)9]3+; or negatively charged, such as [UF8]4. Electrically charged metal complexes are sometimes called complex ions. A coordination compound contains one or more metal complexes. Coordination compounds are important for at least three reasons. First, most of the elements in the periodic table are metals, and almost all metals form complexes, so metal complexes are a feature of the chemistry of more than half the elements. Second, many industrial catalysts are metal complexes, and such catalysts are steadily becoming more important as a way to control reactivity. For example, a mixture of a titanium complex and an organometallic compound of aluminum is the catalyst used to produce most of the polyethylene and polypropylene "plastic" items we use every day. Finally, transition-metal complexes are essential in biochemistry. Examples include hemoglobin, an iron complex that transports oxygen in our blood; cytochromes, iron complexes that transfer electrons in our cells; and complexes of Fe, Zn, Cu, and Mo that are crucial components of certain enzymes, the catalysts for all biological reactions. Metal complexes are so important in biology that we consider the topic separately in Section 23.6 "Transition Metals in Biology". Q: Hemoglobin is responsible for transporting what within our blood? A:
****
A: oxygen

Problem:OPTIONS:
- white
- orange
- pink
- blue

Answer the following question given this paragraph: Red litmus paper turns blue when placed in a basic solution. Q: Red litmus paper turns what color when placed in a basic solution? A:
****
A:
blue