*Question*
Answer the following question given this paragraph: Ionic Compounds The substances described in the preceding discussion are composed of molecules that are electrically neutral; that is, the number of positively charged protons in the nucleus is equal to the number of negatively charged electrons. In contrast, ions are atoms or assemblies of atoms that have a net electrical charge. Ions that contain fewer electrons than protons have a net positive charge and are called cations. Conversely, ions that contain more electrons than protons have a net negative charge and are called anions. Ionic compounds contain both cations and anions in a ratio that results in no net electrical charge. Q: Ions that contain fewer electrons than protons have a net positive charge and are called what? Choices: - oxides - particles - anions - cations A:
**Answer**
cations

*Question*
Answer the following question given this paragraph: (left) The DNA double helix wraps around proteins (2) and tightly coils a number of times to form a chromosome (5). This figure shows the complexity of the coiling process. The red dot shows the location of the centromere, where the microtubules attach during mitosis and meiosis. (right) A representation of a condensed eukaryotic chromosome, as seen after the DNA has been copied. The chromosome is made of two identical, or sister, chromatids held together by a centromere. Q: What genetic unit is formed when the dna double helix wraps around proteins and tightly coils a number of times? Choices: - atom - gene - neutron - chromosome A:
**Answer**
chromosome

*Question*
Answer the following question given this paragraph: The instantaneous velocity of an object is the velocity of the object at a given moment. If the object is moving with constant velocity, then the instantaneous velocity at every moment, the average velocity, and the constant velocity are all the same. Q: What is defined as the velocity of the object at a given moment? Choices: - specific gravity - relativistic velocity - inertia - instantaneous velocity A:
**Answer**
instantaneous velocity

*Question*
Answer the following question given this paragraph: Stars are classified by color and temperature. The most common system uses the letters O (blue), B (blue-white), A (white), F (yellow-white), G (yellow), K (orange), and M (red), from hottest to coolest. Q: What celestial bodies are classified by color and temperature, ranging from blue to red and hottest to coolest? Choices: - astroids - planets - galaxies - stars A:
**Answer**
stars