Answer the following question given this paragraph: There are no forces of attraction or repulsion between gas particles . Attractive forces are responsible for particles of a real gas condensing together to form a liquid. It is assumed that the particles of an ideal gas have no such attractive forces. The motion of each particle is completely independent of the motion of all other particles. Q: Which measure indicates the number of electrons in a given sublevel? Choices: - subscripts - mole - coefficients - superscripts A:
superscripts
Answer the following question given this paragraph: Volume is a measure of the amount of space that a substance or an object takes up. The basic SI unit for volume is the cubic meter (m 3 ), but smaller volumes may be measured in cm 3 , and liquids may be measured in liters (L) or milliliters (mL). How the volume of matter is measured depends on its state. Q: What is a measure of the amount of space that a substance or an object occupies? Choices: - mass - density - power - volume A:
volume
Q: Answer the following question given this paragraph: At certain times of year, a stream or river may overflow its banks. The area of land that is flooded is called the floodplain. The floodplain may be very wide where the river flows over a nearly flat surface. Q: At certain times of year, a stream or river may overflow its banks. what is the area of land that is flooded called? Choices: - inlet - run off - lowland - floodplain A:
A: floodplain
Question: Answer the following question given this paragraph: The axes of rotation of the planets are mostly nearly perpendicular to the orbital plane. Q: How do planets usually rotate to their orbital planes? Choices: - exactly perpendicular - chaotic - randomly - nearly perpendicular A:
Answer: nearly perpendicular
*Question*
Answer the following question given this paragraph: Crocodilia, containing both alligators and crocodiles, is an order of large reptiles. Reptiles belonging to Crocodilia are the closest living relatives of birds. Reptiles and birds are the only known living descendants of the dinosaurs. Some would day that alligators and crocodiles actually look like small dinosaurs. Dinosaurs that evolved wings are the ancestors of birds. Q: Reptiles and birds are the only known living descendants of what? Choices: - mammals - fossils - dragons - dinosaurs A:
**Answer**
dinosaurs
(Question)
Answer the following question given this paragraph: Methanoic acid and ethanoic acid are also called formic acid and acetic acid, respectively. Formic acid is the compound that makes certain ant bites sting, while acetic acid is the active substance in vinegar. How acidic are carboxylic acids? It turns out that they are not very acidic. No carboxylic acid is on the list of strong acids (Table 12.2 "Strong Acids and Bases"). (For more information about strong acids, see Chapter 12 "Acids and Bases", Section 12.4 "Strong and Weak Acids and Bases and Their Salts". ) This means that all carboxylic acids are weak acids. A 1 M solution of formic acid is only about 1.3% dissociated into H+ ions and formate ions, while a similar solution of acetic acid is ionized by about only 0.4%. Some carboxylic acids are strongerfor example, trichloroacetic acid is about 45% dissociated in aqueous solution. But no carboxylic acid approaches the 100% dissociation amount required by the definition of a strong acid. As their name suggests, however, carboxylic acids do act like acids in the presence of bases. The H atom in the carboxyl group comes off as the H+ ion, leaving acarboxylate anion:. Q: What is the more common term for ethanoic acid, the active substance in vinegar? Choices: - methyl acid - amino acid - polymer acid - acetic acid A:
(Answer)
acetic acid