Answer the following question given this paragraph: Molecules with a carboxyl group are called carboxylic acids. As with aldehydes, the functional group in carboxylic acids is at the end of a carbon chain. Also as with aldehydes, the C atom in the functional group is counted as one of the C atoms that defines the parent hydrocarbon name. To name carboxylic acids, the parent name of the hydrocarbon is used, but the suffix -oic acid is added:. Q: Molecules with a carboxyl group are called what? Choices: - acetic acids - catalyzed acids - Fatty acids - carboxylic acids A:
carboxylic acids
(Question)
Answer the following question given this paragraph: Water also gets colder as you go deeper. The weight of the water pressing down from above increases as well. At great depths, life becomes very difficult. The pressure is so great that only specially adapted creatures can live there. Q: Does water get colder or warmer the deeper you go? Choices: - colder, than warmer - neither - warmer - colder A:
(Answer)
colder
Ques: 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:
Ans: low atomic number
(Q).
Answer the following question given this paragraph: The two materials do have at least one thing in common. The atoms in the materials are held together by covalent bonds. These bonds consist of electrons shared between two or more atoms. Unlike ionic bonds, where electrons are either lost or gained by an atom to form charged ions, electrons in covalent compounds are shared between the two atoms, giving rise to properties that are quite different from those seen in ionic materials. Q: Electrons in covalent compounds are shared between the two atoms, unlike the case in what type of bonds? Choices: - horizontal bonds - weak bonds - soluble bonds - ionic bonds A:
(A).
ionic bonds
Ques:Answer the following question given this paragraph: Biochemical reactions are chemical reactions that take place inside the cells of organisms. Q: Where do biochemical reactions take place? Choices: - between cells - in atoms - outside of cells - inside the organisms' cells A:

Ans:inside the organisms' cells
Ques: Answer the following question given this paragraph: For example, remember that for the height gene in pea plants there are two possible factors. These factors are alleles. There is a dominant allele for tallness (T) and a recessive allele for shortness (t) . Q: What factors determine the effect of a gene? Choices: - metabolites - genomes - ribosomes - alleles A:
Ans:
alleles