Problem: OPTIONS:
- liquid
- steel
- plastic
- metal
Q: Answer the following question given this paragraph: Summary The transition metals are characterized by partially filled d subshells in the free elements and cations. The ns and (n 1)d subshells have similar energies, so small influences can produce electron configurations that do not conform to the general order in which the subshells are filled. In the secondand third-row transition metals, such irregularities can be difficult to predict, particularly for the third row, which has 4f, 5d, and 6s orbitals that are very close in energy. The increase in atomic radius is greater between the 3d and 4d metals than between the 4d and 5d metals because of the lanthanide contraction. Ionization energies and electronegativities increase slowly across a row, as do densities and electrical and thermal conductivities, whereas enthalpies of hydration decrease. Anomalies can be explained by the increased stabilization of half-filled and filled subshells. Transition-metal cations are formed by the initial loss of ns electrons, and many metals can form cations in several oxidation states. Higher oxidation states become progressively less stable across a row and more stable down a column. Oxides of small, highly charged metal ions tend to be acidic, whereas oxides of metals with a low charge-to-radius ratio are basic. Q: Oxides of small, highly charged ions of what type tend to be acidic? A:
Answer: metal

Problem:OPTIONS:
- solutions
- compounds
- minerals
- products

Answer the following question given this paragraph: When a chemical reaction occurs, the atoms in the reactants rearrange their chemical bonds to make products. The new arrangement of bonds does not have the same total energy as the bonds in the reactants. Therefore, when chemical reactions occur, there will always be an accompanying energy change. In some reactions, the energy of the products is lower than the energy of the reactants. Thus, in the course of the reaction, the substances lose energy to the surrounding environment. Such reactions are exothermic and can be represented by an energylevel diagram like the one in http://catalog. flatworldknowledge. com/bookhub/reader/2547 gob-ch07_s04_f01. In most cases, the energy is given off as heat (although a few reactions give off energy as light). Figure 7.3 Exothermic Reactions. Q: What do atoms make by rearranging their chemical bonds in a reactant? A:
****
A: products

Answer the following question given this paragraph: An element is a pure substance that cannot be broken down into different types of substances. There are almost 120 known elements ( Figure below ), each with its own personality. The chemical and physical properties of one element differ from any other. Elements are arranged according to their properties in the Periodic Table . Q: What do you call a pure substance that cannot be broken down into different types of substances? A:
OPTIONS:
- molecule
- sample
- compound
- element
element

Answer the following question given this paragraph: Francium has an atomic number of 87. Write the chemical equation for the alpha particle emission of 212Fr. What is the daughter isotope?. Q: Which element has atomic number 87? A:
OPTIONS:
- iron
- argon
- barium
- francium

Answer: francium

Question: Answer the following question given this paragraph: The theory of evolution by natural selection means that the inherited traits of a population change over time. Inherited traits are features that are passed from one generation to the next. For example, your eye color is an inherited trait. You inherited your eye color from your parents. Inherited traits are different from acquired traits , or traits that organisms develop over a lifetime, such as strong muscles from working out ( Figure below ). Q: What type of traits are features that are passed from one generation to the next called? A:
OPTIONS:
- generational traits
- genetic traits
- familial traits
- inherited traits
Answer: inherited traits

input: OPTIONS:
- genesys
- Mitosis
- electrolysis
- cytokinesis Now, answer this question: Answer the following question given this paragraph: Cytokinesis is the final step in cell division. It often occurs concurrently with telophase, though it is a separate process. Cytokinesis ( Figure below ) differs between plant and animal cells. In animal cells, the plasma membrane pinches inward along the cell's equator until two cells are formed. Specifically, a cleavage furrow containing a contractile ring develops in approximately the middle of the cell (similar to the position of the metaphase plate), essentially pinching off the two nuclei and forming separate cells. In plant cells, a cell plate forms along the cells equator. A new membrane grows along each side of the cell plate, with a new cell wall forming on the outside of each new membrane. Q: Which is the final step of cell division? A:
A:
output:
cytokinesis