1)The state or phase in which most ionic compounds occur will be a solid state or phase. This will make the correct answer A.
2) The compound Co is an example of a covalent compound. This will make the answer to be D.
You should know the implicit meaning of the prefixes of units of measurements. Let's take for example, the unit of meters. When you say kilometers, that would be 10³ of a meter. When you say megameters, that's 10¹⁰ of a meter. So, if a unit is 5.69×10¹⁰ meters, you can just express that into 5.69 megameters.
Once heat from the sun penetrate the Earths atmosphere, the heat is circulated as warm air rises and cold air sinks,this process is called convection Convection can be demonstrated by placing a heat source {cooker} at the side of a glass full of a liquid, and observing the changes in temperature in the glass caused by the warmer fluid moving into cooler areas
Answer:
The speed of a wave is a measure of the product of its frequency and wavelength. ... Since the frequency is kept constant, then it is the constant of proportionality. The wavelength is directly proportional to the speed. Therefore, if speed is increased, wavelength will increase.
Well the IUPAC naming system is for naming organic compounds in chemistry whereas the taxonomic hierarchical naming system is for classifying and naming species of organisms and finding relationships in terms of physical characteristics. The only way I'd say that they're similar is in the way they actually name the compound/species. E.g, in chemistry, you always have a base name and to that base name you can add a suffix and/or prefix(es). And in biology, you always have the first bit of the me which is the generic name and the second bit of the name which is the specific name. I know this probably wasn't very helpful but this is a very odd question if it's one that would be in an exam because chemistry and biology wouldn't usually be mixed together...