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What is the most reactive group of metals?
in group 1, the first column on the left Edit: these would be the alkali metals.
What main group of metals would combine with chlorine?
Group I metals will have the most violent reaction.
All metals are conductors?
by defining all metals would be wrong as synthetic metals would change the properties of the metal. in terms of natural metals or alloys, yes they are all conductors as their arrangements allow them to have delocalised electrons to carry electricity
The largest category on the periodic table would be the?
metals
What substances would have the greatest ductility?
Sio2
What types of reactions would be most useful in characterizing the alkali metals?
For example the reaction with water.
How did Native Americans attempt to turn European rivalries to their advantage?
Every time the Native Americans needed something, they would take sides with the country that had what they needed. When the Native Americans could no longer gain anything from the Europeans, they would take a countries side that benefited them best. They were successful in that they gained what they needed when they needed it.
Why Presious metals are expensive?
So-called "precious" metals are expensive for two reasons - 1, scarcity, and 2, utility. They're comparatively rare, and they're very useful. If they were rare, but nobody wanted or needed them, the real value would be far less - like a Kardashian. If they were very useful, but very plentiful, the value would be less as well, kinda like sand - which is silica which is used in glass, computer chips, etc etc.
What word means be of use?
A word that means, be of use would be; helpful, useful, needed
Is energy saved if we recycle metals?
Yes, you save all the energy that would have been needed to mine fresh ore from the ground and to extract the metal from that ore. The amount of energy needed to collect and sort the recycled metals is insignificant compared to this (especially for metals like aluminum that are very hard to extract from their ores).You only need to use the energy needed to melt the pure metal, which you would have needed anyway after extraction of new metal from fresh ore.
Which variable would be most useful in determining the number of infant vaccinations needed in a certain year?
Birthrate
What would be useful in studying the effect of germs exchange between the new and old worlds?
a graph of the amount of native americans
What would be most useful in studying the effect of germs exchanged between the New and Old Worlds?
a graph of the amount of native americans
What would be most useful in studying the effect of germs exchanged between the New old worlds?
a graph of the amount of native americans
Which field of study would be most useful to a person who wants to learn about the effects of new building projects on native species?
Ecology
Would be most useful in studying the effect of germs exchanged between the New and Old Worlds?
a graph of the amount of native americans
Melting points of alkali metals?
Alkali metals have relatively low melting points compared to the other metals. Their exact melting points depend on the element itself. But it would be useful to note that their melting points decreases down group I.
