Answer the following question given this paragraph: Isomers that contain the same number of atoms of each kind but differ in which atoms are bonded to one another are called structural isomers. Isobutane and n-butane are examples of structural isomers. One kind of isomerism consists of two compounds that have the same empirical formula but differ in the number of formula units present in the molecular formula. An example in coordination compounds is two compounds with the empirical formula Pt(NH 3)2Cl2. One is a simple square planar platinum(II) complex, Pt(NH3)2Cl2, and the other is an ionic compound that contains the [Pt(NH 3)4]2+ cation and the [PtCl4]2 anion, [Pt(NH3)4][PtCl4]. As you might expect, these compounds have very different physical and chemical properties. One arrangement of the Cl and NH3 ligands around the platinum ion in the former gives the anticancer drug cisplatin, whereas the other arrangement has no known biomedical applications. Q: What type of isomers contain the same number of atoms of each kind but differ in which atoms are bonded to one another? Choices: - different isomers - unique isomers - constitutional isomers - structural isomers A:
structural isomers
(Question)
Answer the following question given this paragraph: An air mass takes on the conditions of the area where it forms. For example, a continental polar air mass has cold dry air. A maritime polar air mass has cold moist air. Which air masses have warm moist air? Where do they form?. Q: What kind of air does a continental polar air mass hold? Choices: - cool moist air - frigid wet air - warm dry air - cold dry air A:
(Answer)
cold dry air
Ques: Answer the following question given this paragraph: Heavier isotopes of plutoniumPu-240, Pu-241, and Pu-242are also produced when lighter plutonium nuclei capture neutrons. Some of this highly radioactive plutonium is used to produce military weapons, and the rest presents a serious storage problem because they have half-lives from thousands to hundreds of thousands of years. Although they have not been prepared in the same quantity as plutonium, many other synthetic nuclei have been produced. Nuclear medicine has developed from the ability to convert atoms of one type into other types of atoms. Radioactive isotopes of several dozen elements are currently used for medical applications. The radiation produced by their decay is used to image or treat various organs or portions of the body, among other uses. The elements beyond element 92 (uranium) are called transuranium elements. As of this writing, 22 transuranium elements have been produced and officially recognized by IUPAC; several other elements have formation claims that are waiting for approval. Some of these elements are shown in Table 21.3. Preparation of Some of the Transuranium Elements Name. Q: Heavier isotopes of plutonium are also produced when lighter plutonium nuclei capture what? Choices: - protons - electrons - molecules - neutrons A:
Ans: neutrons
(Q).
Answer the following question given this paragraph: Earthquakes can cause tsunamis . These deadly ocean waves may result from any shock to ocean water. A shock could be a meteorite impact, landslide, or a nuclear explosion. But most come from large underwater earthquakes. Q: By shocking ocean water, earthquakes can cause what deadly ocean waves? Choices: - deep currents - ebb tides - typhoons - tsunamis A:
(A).
tsunamis
Ques:Answer the following question given this paragraph: Biochemical compounds are carbon-based compounds that are found in living things. The similarity in biochemical compounds between living things provides evidence for the evolution of species from common ancestors. Q: The similarity in biochemical compounds between living things provides evidence for the evolution of species from what? Choices: - recent ancestors - varied ancestors - rare tribes - common ancestors A:

Ans:common ancestors
Answer the following question given this paragraph: Radiation is the transfer of thermal energy by waves that can travel through empty space. When the waves reach objects, they transfer thermal energy to the objects. This is how the sun's energy reaches and warms Earth. Q: What is the transfer of thermal energy by waves that can travel through empty space called? Choices: - convection - induction - vibration - radiation A:
radiation