Answer the following question given this paragraph: The patterns of atoms that make a mineral affect its physical properties. A mineral's crystal shape is determined by the way the atoms are arranged. For example, you can see how atoms are arranged in halite in Figure above . You can see how salt crystals look under a microscope in Figure below . Salt crystals are all cubes whether they're small or large. Q: A mineral's crystal shape is determined by the way what objects are arranged? Choices: - molecules - particles - Electrons - atoms A:
atoms
Answer the following question given this paragraph: Boiling Points When the vapor pressure increases enough to equal the external atmospheric pressure, the liquid reaches its boiling point. The boiling point of a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings. For liquids in open containers, this pressure is that due to the earth's atmosphere. The normal boiling point of a liquid is defined as its boiling point when surrounding pressure is equal to 1 atm (101.3 kPa). Figure 10.24 shows the variation in vapor pressure with temperature for several different. Q: What term is used to describe when a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings? Choices: - freezing point - burning point - evaporating point - boiling point A:
boiling point
Q: Answer the following question given this paragraph: With less energy at higher trophic levels, there are usually fewer organisms as well. Organisms tend to be larger in size at higher trophic levels, but their smaller numbers result in less biomass. Biomass is the total mass of organisms at a trophic level. The decrease in biomass from lower to higher levels is also represented by Figure above . Q: Organisms tend to be larger in size at higher what levels? Choices: - proteolytic - benthic - Secondary Layer - trophic A:
A: trophic
Question: Answer the following question given this paragraph: Alkenes and alkynes can be reduced with hydrogen gas to form alkanes. Q: What can alkenes and alkynes be reduced with to form alkanes? Choices: - acids - oxygen - enzymes - hydrogen gas A:
Answer: hydrogen gas
*Question*
Answer the following question given this paragraph: The sum of the calculated atomic radii of sodium and chlorine atoms is 253 pm. The sodium cation is significantly smaller than a neutral sodium atom (102 versus 154 pm), due to the loss of the single electron in the 3s orbital. Conversely, the chloride ion is much larger than a neutral chlorine atom (181 versus 99 pm), because the added electron results in greatly increased electronelectron repulsions within the filled n = 3 principal shell. Thus, transferring an electron from sodium to chlorine decreases the radius of sodium by about 50%, but causes the radius of chlorine to almost double. The net effect is that the distance between a sodium ion and a chloride ion in NaCl is greaterthan the sum of the atomic radii of the neutral atoms. Q: Transferring what from sodium to chlorine decreases the radius of sodium by about 50%? Choices: - quark - proton - neutron - electron A:
**Answer**
electron
(Question)
Answer the following question given this paragraph: Some cases of type 2 diabetes can be cured with weight loss. However, most people with the disease need to take medicine to control their blood sugar. Regular exercise and balanced eating also help, and should be a regular part of the treatment for these people. Like people with type 1 diabetes, people with type 2 diabetes must frequently check their blood sugar. Q: Like people with type 1 diabetes, people with type 2 diabetes must frequently check what level? Choices: - glucose - pulse - heartbeat - blood sugar A:
(Answer)
blood sugar