What happens to water when it freezes its mass INcreases? The fact that water expands upon freezing causes icebergs to float. The fact that water reaches a maximum density at about 4°C causes bodies of water to freeze on the top first. The expansion upon freezing comes from the fact that water crystallizes into an […]
What are fireproof materials?
What are fireproof materials? Refractories are hard, heat-resistant materials such as cement, bricks, precast shapes, ceramics and fire clay. Some of the minerals used to make refractories include alumina, chromite, fire clays, magnesite and silicon carbide. Does Flex tape withstand heat? A: Flex Tape can be applied in a wide range of temperatures, from 20° […]
How much is a lot of rain per year?
Is losing an electron endothermic or exothermic?
Is losing an electron endothermic or exothermic? To summarize the difference between the electron affinity of metals and nonmetals (Figure 1): Metals: Metals like to lose valence electrons to form cations to have a fully stable octet. They absorb energy (endothermic) to lose electrons. The electron affinity of metals is lower than that of nonmetals. […]
Can humans generate random numbers?
Can humans generate random numbers? Generated numbers were tested for uniformity, independence and information density. The results suggest that humans can generate random numbers that are uniformly distributed, independent of one another and unpredictable. Why cant you use random numbers from 1 to 100? A number between 1 and 100 will never be 1 or […]
Do things float better in hot or cold water?
Do things float better in hot or cold water? Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. Cold water is more dense and will sink in room-temperature water. […]
How do you read a pump performance chart?
What will form when two oceanic plates collide?
What will form when two oceanic plates collide? A subduction zone is also generated when two oceanic plates collide — the older plate is forced under the younger one — and it leads to the formation of chains of volcanic islands known as island arcs. What happens when two plates of the same density collide? […]
How can you produce magnetic field without using a magnet?
How can you produce magnetic field without using a magnet? A Magnetic field can be produced without using a magnet through an electromagnet or a current-carrying conductor. Explanation: A magnetic field is described as a condition in the space around a magnet in which there is a detectable magnetic force and two magnetic fields are […]
Which has lowest lattice energy?
Which has lowest lattice energy? cesium iodide How do you know which compound has higher lattice energy? To decide whether BaS or CaO has the greater lattice energy, we need to consider the relative sizes of the ions because both compounds contain a +2 metal ion and a −2 chalcogenide ion. Because Ba 2 + […]