Answer the following question given this paragraph: Thermal Expansion The intermolecular forces in liquids are strong enough to keep them from expanding significantly when heated (typically only a few percent over a 100C temperature range). Thus the volumes of liquids are somewhat fixed. Notice from Table 11.1 "The Density of Water at Various Temperatures" that the density of water, for example, changes by only about 3% over a 90-degree temperature range. Table 11.1 The Density of Water at Various Temperatures. Q: What forces in liquids are strong enough to keep them from expanding significantly when heated? Choices: - particles forces - outermolecular forces - gravitational forces - intermolecular forces A:
intermolecular forces
Answer the following question given this paragraph: Osteoporosis is a common age-related bone disease in which bone density and strength is decreased. Watch this video (http://openstaxcollege. org/l/osteoporosis) to get a better understanding of how thoracic vertebrae may become weakened and may fracture due to this disease. How may vertebral osteoporosis contribute to kyphosis?. Q: A common age-related bone disease in which bone density and strength is decreased is know as what? Choices: - allergies - Stomach - fibrosis - osteoporosis A:
osteoporosis
Q: Answer the following question given this paragraph: The fatty material inside the artery on the right is plaque. Notice how much narrower the artery has become. Less blood can flow through it than the normal artery. Q: What fatty material inside arteries can restrict blood flow in the artery? Choices: - marble - collagen - cholesterol - plaque A:
A: plaque
Question: Answer the following question given this paragraph: The standard cell potential is negative, indicating a nonspontaneous reaction. The battery must be capable of delivering at least 1.10 V of direct current in order for the reaction to occur. Another difference between a voltaic cell and an electrolytic cell is the signs of the electrodes. In a voltaic cell, the anode is negative and the cathode is positive. In an electrolytic cell, the anode is positive because it is connected to the positive terminal of the battery. The cathode is therefore negative. Electrons still flow through the cell form the anode to the cathode. Q: What type of cell has negative anode is positive cathode? Choices: - picric cell - planetoid cell - non-voltaic cell - voltaic cell A:
Answer: voltaic cell
*Question*
Answer the following question given this paragraph: Conducting wires have a small electrical resistance. The electrical resistance of a conducting wire is related to the type of metal used and inversely related to the cross-sectional area of the wire. The larger the diameter of a wire, the greater the cross-sectional area, and the lower the electrical resistance will be. When electrons flow through a wire, they repel each other and interfere with the passage of other electrons. If there are a very large number of electrons passing through a wire with small diameter, the electrons will experience a greater resistance than if the wire diameter were larger and the electrons had more space between them. Q: Conducting wires have a small degree of what? Choices: - magnetism - insulation - heat - electrical resistance A:
**Answer**
electrical resistance
Q: Answer the following question given this paragraph: Cycle of Sexual Reproduction. Sexual reproduction involves the production of haploid gametes by meiosis. This is followed by fertilization and the formation of a diploid zygote. The number of chromosomes in a gamete is represented by the letter n. Why does the zygote have 2n, or twice as many, chromosomes?. Q: Sexual reproduction involves the production of haploid gametes by what? Choices: - lesions - mutations - mitosis - meiosis A:
A: meiosis