*Question*
Q: What is an odorless white solid that is harmless unless consumed in large quantities? Read this paragraph and choose the correct option from the provided answers: A: Sodium chloride is an odorless white solid that is harmless unless consumed in large quantities. In fact, it is a necessary component of the human diet. Choices: - Hydrogen - carbon chloride - oxygen chloride - sodium chloride A:
**Answer**
sodium chloride

*Question*
Q: What consists of one or two closed loops through which current can flow? Read this paragraph and choose the correct option from the provided answers: An electric circuit consists of one or two closed loops through which current can flow. It has a voltage source and a conductor and may have other devices such as lights and switches. Choices: - thermal reaction - magnetic poles - cooling circuit - electric circuit A:
**Answer**
electric circuit

*Question*
Q: What does a hydrolase use to split molecules? Read this paragraph and choose the correct option from the provided answers: Hydrolase A hydrolase splits a molecule into two fragments by using water. The catalyzed reaction is referred to as a hydrolysis. Choices: - air - gas - momentum - water A:
**Answer**
water

*Question*
Q: What are metals and good electrical conductors that tend to lose their valence electrons in chemical reactions called? Read this paragraph and choose the correct option from the provided answers: Electronegativity Differences between Metals and Nonmetals An element's electronegativity provides us with a single value that we can use to characterize the chemistry of an element. Elements with a high electronegativity ( 2.2 in Figure 7.15 "Pauling Electronegativity Values of the ") have very negative affinities and large ionization potentials, so they are generally nonmetals and electrical insulators that tend to gain electrons in chemical reactions (i. , they are oxidants). In contrast, elements with a low electronegativity ( 1.8) have electron affinities that have either positive or small negative values and small ionization potentials, so they are generally metals and good electrical conductors that tend to lose their valence electrons in chemical reactions (i. , they are reductants). In between the metals and nonmetals, along the heavy diagonal line running from B to At in Figure 1.24 "The Periodic Table Showing the Elements in Order of Increasing ", is a group of elements with intermediate electronegativities ( ~ 2.0). These are the semimetals, elements that have some of the chemical properties of both nonmetals and metals. The distinction between metals and nonmetals is. Choices: - stable metals - conservants - precious metals - reductants A:
**Answer**
reductants