For the pairs of elements C and Cl, state whether the binary compound formed is likely to be ionic or covalent. Give the formula and name of the compound. What distinguishes an element from a compound? Can a co
How do scientists know what the composition of something is? When they mention that "oxygen was obtained", how can they identify the element or compound without a doubt? Explain the geometry of S_2O_8^{2-}, peroxydisulfate ion. what could be done to test for the emission of anion?
Oxygen in a compound has an oxidation number of -2. Elements in their standard state have an oxidation number of zero. The sum of the oxidation numbers of the atoms in a compound must equal the charge of the compound. Answer and Explanation: Our firs...
Uranium 235, a very scarce from of uranium (only 0.7% of uranium is 235), and plutonium, an element which did not exist naturally, were two possible candidates. However, both elements were exceeding rare (or nonexistent) and had only been produced on tiny laboratory scales. For example, ...
What is the name of the compound with the formula PCl5? Which is the formula mass of Na2SO4? What is the formula of the compound formed by Zn^2+ and SO_3^2-? What is the name for the compound with the formula FeO? What is the formula of oxide?
the elements of a molecule c. phase Explain briefly why a sample of an element having a melting point of 30.0 degrees Celsius might melt in the open air. Is this a physical change or chemical change? Is stretching copper into wire a physical change or a chemical change? Explain....
Is the molecule BrCN polar or nonpolar? Explain. Is the compound NO2Cl polar or nonpolar? Explain. For H2CO, are the bonds polar or nonpolar? Explain. Is CCl4 polar or nonpolar? Explain. Is the compound ClF5 polar or nonpolar? Explain. ...
The oxidation number of an atom in a chemical compound is described as the number of electrons it has gained or lost during the formation of the chemical compound. It is a temporary charge that describes the partial charge of the atom in that particular molecule....
In other words, molar mass of an element is the mass of 6.02 x 102 atoms of that element. Since a molecule is made up of elements, the molar mass of a molecule is just the molar masses of the elements that make it up added together. So, for instance, to find the molar mass of ...
Thus, the ions in Na2SO4 are bet Give reasons as to why graphite conducts electricity. Why are metals good conductors of electricity? Explain why metals conduct electricity. What does it mean to describe the charge distribution of a molecule? Is density an intrinsic or extrinsic property?