Answer the following question given this paragraph: The smallest cyclic ether is called an epoxide. Draw its structure. Q: The smallest cyclic ether is called what? Choices: - aldehyde - quark - peroxidase - epoxide A:
epoxide
Answer the following question given this paragraph: A heart attack happens when the blood cannot reach the heart because a blood vessel is blocked. If cardiac muscle is starved of oxygen for more than roughly five minutes, it will die. Cardiac muscle cells cannot be replaced, so once they die, they are dead forever. Coronary heart disease is the leading cause of death of adults in the United States. The image below shows the way in which a blocked coronary artery can cause a heart attack and cause part of the heart muscle to die ( Figure below ). Maybe one day stem cells will be used to replace dead cardiac muscle cells. Q: What happens when the blood cannot reach the heart because a blood vessel is blocked? Choices: - fast heart beat - heart burn - pass out - heart attack A:
heart attack
Q: Answer the following question given this paragraph: Mars is the fourth planet from the Sun. It has two small, irregular moons. Mars is red because of rust in its soil. Mars has the largest mountain and the largest canyon in the solar system. Q: What is the fourth planet from the sun? Choices: - Pluto - Saturn - Mercury - mars A:
A: mars
Question: Answer the following question given this paragraph: chloride, NaCl. When Na 2 HPO 24 (the weak acid) comes into contact with a strong base, such as sodium hydroxide (NaOH), the weak acid reverts back to the weak base and produces water. Acids and bases are still present, but they hold onto the ions. Q: When na 2 hpo 24 (the weak acid) comes into contact with a strong base, such as sodium hydroxide (naoh), the weak acid reverts back to the weak base and produces what? Choices: - rock - plasma - air - water A:
Answer: water
*Question*
Answer the following question given this paragraph: Figure 13.11 In general, objects expand in all directions as temperature increases. In these drawings, the original boundaries of the objects are shown with solid lines, and the expanded boundaries with dashed lines. (a) Area increases because both length and width increase. The area of a circular plug also increases. (b) If the plug is removed, the hole it leaves becomes larger with increasing temperature, just as if the expanding plug were still in place. (c) Volume also increases, because all three dimensions increase. Q: In general, objects expand in all directions as temperature does what? Choices: - stays the same - cycles - decreases - increases A:
**Answer**
increases
(Q).
Answer the following question given this paragraph: Proteins have different shapes and molecular weights; some proteins are globular in shape whereas others are fibrous in nature. For example, hemoglobin is a globular protein, but collagen, found in our skin, is a fibrous protein. Protein shape is critical to its function, and this shape is maintained by many different types of chemical bonds. Changes in temperature, pH, and exposure to chemicals may lead to permanent changes in the shape of the protein, leading to loss of function, known as denaturation. All proteins are made up of different arrangements of the same 20 types of amino acids. Q: Changes in temperature, ph, and exposure to chemicals may lead to permanent changes in the shape of a protein, leading to loss of function known as what? Choices: - digestion - fermentation - bioturbation - denaturation A:
(A).
denaturation