The Oxidation number is determined by how many electrons are lost and gained. So, when gaining combining the elements you use the oxidation numbers to predict your compound.
No. The mass number can be used, however, to determine the number of neutrons. Electrons can only be determined by knowing the atom's charge.
Tarnish can be removed from a penny by physical means; however, this tends to damage the coin and would not be an acceptable way of handling antique or valuable items. Tarnish itself consists of a number of copper compounds formed from elements and compounds that copper items come into contact with, even those that exposed only to the atmosphere. Some knowledge of chemistry is important to knowing what these compounds are, and how they might be removed, without damage being done to coins in the process.
A. The geometry it will have
With out knowing further knowledge about the rock it is unable to determine the exact density. However, since the rock floats, presumably in water, the density must be less then 1.00g/L.
Not knowing where you are, it's impossible to say.
ewan
purpose
It will be impossible to answer this question accurately without knowing what the questioner wants to determine.
CaCl2. I determined it by knowing the common oxidation states for calcium and chlorine.
Reacts with other substances.
Knowing the properties of fuel is very helpful. For eg, if we know its burning temperature and amount of calories produced, we can determine its efficiency to be used as a fuel. also by knowing the properties of viscosity we can determine its rate of flow, how to efficiently use it for the various purposes. Properties help to determine the best use of the liquid and thus increasing efficiency and productivity.
yes
temperature
Knowing who created the text
We cannot determine the circumference of a tank by knowing its height. Its like measuring the weight of an object by knowing its length.
On the face of it without knowing the structure it would be -2 however that would imply an oxidation number for Cs of +6. Fortunately this compound does not exist which explains the weird oxidation number for Cs. There is a compound Cs11O3 and we get a fractional oxidation number of 6/11- Cs11O3 must contain some Cs-Cs bonding.
No way to determine without knowing manufacturer and model of rifle.