Answer the following question given this paragraph: TiCl4(l) + 2Mg(s) Ti(s) + 2MgCl2(s) The only other alkaline earth that is widely used as the metal is beryllium, which is extremely toxic. Ingestion of beryllium or exposure to beryllium-containing dust causes a syndrome called berylliosis, characterized by severe inflammation of the respiratory tract or other tissues. A small percentage of beryllium dramatically increases the strength of copper or nickel alloys, which are used in nonmagnetic, nonsparking tools (such as wrenches and screwdrivers), camera springs, and electrical contacts. The low atomic number of beryllium gives it a very low tendency to absorb x-rays and makes it uniquely suited for applications involving radioactivity. Both elemental Be and BeO, which is a high-temperature ceramic, are used in nuclear reactors, and the windows on all x-ray tubes and sources are made of beryllium foil. Millions of tons of calcium compounds are used every year. As discussed in earlier chapters, CaCl 2 is used as "road salt" to lower the freezing point of water on roads in cold temperatures. In addition, CaCO 3 is a. Q: What aspect of beryllium allows it to absorb x-rays? Choices: - magnetism - relative atomic number - high atomic number - low atomic number A:
low atomic number
Answer the following question given this paragraph: Common digestive system problems include foodborne illness and food allergies. Following healthy food-handling practices may decrease your risk of foodborne illness. Food allergy symptoms can be prevented by avoiding the offending foods. Q: How can you prevent food allergy symptoms? Choices: - antioxidants - stem cell therapy - antiviral drugs - avoid offending foods A:
avoid offending foods
Q: Answer the following question given this paragraph: Bacterial Disease Vectors. Ticks spread bacteria that cause Lyme disease. Deerflies spread bacteria that cause tularemia. Q: Ticks spread bacteria that causes what condition? Choices: - Rabies - Malaria - Dengue fever - lyme disease A:
A: lyme disease
Question: Answer the following question given this paragraph: The area of a surface is how much space it covers. It's easy to calculate the area of a surface if it has a regular shape, such as the blue rectangle in the sketch below. You simply substitute measurements of the surface into the correct formula. To find the area of a rectangular surface, use this formula:. Q: How much space a surface covers is known as what? Choices: - Flatness - Lenght - Height - area A:
Answer: area
*Question*
Answer the following question given this paragraph: Fungi cannot make their own food like plants can, since they do not have chloroplasts and cannot carry out photosynthesis. Fungi are more like animals because they are heterotrophs, as opposed to autotrophs, like plants, that make their own food. Fungi have to obtain their food, nutrients and glucose, from outside sources. Q: Why can't fungi make their own food like plants do? Choices: - no organelles - no hydrogen - no cells - no chloroplasts A:
**Answer**
no chloroplasts
Answer the following question given this paragraph: Polarization leads to the buildup of electric charges on objects. This buildup of charges is known as static electricity . Once an object becomes charged, it is likely to remain charged until another object touches it or at least comes very close to it. That's because electric charge cannot travel easily through air, especially if the air is dry. Q: What leads to the buildup of electric charges on objects? Choices: - movement - gravity - rotation - polarization A:
polarization