Q: What device is used to measure temperature? Read this paragraph and choose the correct option from the provided answers: A thermometer is a device used to measure temperature. It is placed in contact with an object and allowed to reach thermal equilibrium with the object (they will have the same temperature). The operation of a thermometer is based on some property, such as volume, that varies with temperature. The most common thermometers contain liquid mercury, or some other liquid, inside a sealed glass tube. The liquid expands and contracts faster than the glass tube. Therefore, when the temperature of the thermometer increases, the liquid volume expands faster than the glass volume, allowing the liquid to rise in the tube. The positions of the liquid in the tube can then be calibrated for accurate temperature readings. Other properties that change with temperature can also be used to make thermometers; liquid crystal colors and electrical conductivity change with temperature, and are also relatively common thermometers. Choices: - compass - anemometer - barometer - thermometer A:
thermometer

Q: The skull is a part of a vertebrate endoskeleton that encloses and protects what organ? Read this paragraph and choose the correct option from the provided answers: part of a vertebrate endoskeleton that encloses and protects the brain; also called the skull. Choices: - nervous system - lung - heart - brain A:
brain

Q: Q: What word describes a carbonyl where the carbon atom makes single bonds with two others? Read this paragraph and choose the correct option from the provided answers: Ketones are carbonyls in which the carbon atom makes single bonds with two other carbon atoms. Ketones are less reactive than aldehydes and are a common component in nail polish removers and paint strippers. Choices: - acetone - ions - photons - ketones A:
A: ketones

Question: Q: What is an ion that is in common to both salts in a solution? Read this paragraph and choose the correct option from the provided answers: This situation describes the common ion effect. A common ion is an ion that is in common to both salts in a solution. In the above example, the common ion is Ca 2+ . The common ion effect is a decrease in the solubility of an ionic compound as a result of the addition of a common ion. Adding calcium ion to the saturated solution of calcium sulfate causes additional CaSO 4 to precipitate from the solution, lowering its solubility. The addition of a solution containing sulfate ion, such as potassium sulfate, would result in the same common ion effect. Choices: - regular ion - strong ion - native ion - common ion A:
Answer: common ion

*Question*
Q: Ionic compounds take on the form of extended three-dimensional arrays of cations and what else? Read this paragraph and choose the correct option from the provided answers: Ionic compounds take on the form of extended three-dimensional arrays of cations and anions. Choices: - oxides - electrons - crystals - anions A:
**Answer**
anions

*Question*
Q: What is the term for diseases in which blood does not clot normally? Read this paragraph and choose the correct option from the provided answers: Hemophilia is a group of diseases in which blood does not clot normally. Factors in blood are involved in clotting. When you bleed, your body begins a coagulation cascade of reactions, involving special proteins known as coagulation factors, to stop that bleeding. When one or more of these clotting factors are missing, there is a higher chance of having dificulties stoping the bleeding. Hemophiliacs lacking the normal Factor VIII are said to have Hemophilia A (or Factor VIII deficiency), the most common form. Hemophilia is a genetic disease, passed down through family. It is linked to the X-chromosome, so it mostly affects males. F8 is the gene for the Factor VIII protein. Mutations in the F8 gene lead to the production of an abnormal version of coagulation factor VIII, or reduce the amount of the protein. The altered or missing protein cannot participate effectively in the blood clotting process. Choices: - arthritis - diabetes - lymphoma - hemophilia A:
**Answer**
hemophilia