yes
There are lots of examples unused single letters and pairs of letters- two most commonly used by chemists when they wan't to discuss generic properties, are X (often used to represent the halogens), M (used for metals)
An atom that naturally pairs up like oxygen (O2) or hydrogen (H2) is called diatomic.
Double bond is a chemical bond formed when atoms share two pairs of electrons & Triple bond is a chemical bond formed when atoms share 3 pairs of element .
Two atoms sharing three pairs of electrons have a triple bond.
The molecule's function and chemical and physical properties
Gilbert N, Lewis
No, the equation is: HPO4-2 → H+ + PO4-3 The HPO4-2 and PO4-3 are conjugate acid base pairs.
NH3 + H20 <----> NH4+ + OH- Ammonia is a weak base so it is the favored side of the equilbrium. Conjugate acid and base pairs only differ by a proton. So ammonia and ammonium are pairs and water and hydroxide ions are pairs. NH4+ + CN- <-------> HCN + NH3
acc. to this concept , acids are proton donor and base are proton acceptor . reverse of these reactions are also acid base pairs and the pairs are known as conjugate acid base pairs . .
Two pairs of parallel lines.
2
That's true. Complex and pure-imaginary solutions come in 'conjugate' pairs.
A parallelogram has 2 pairs of parallel lines
Pairs of triangles, in general, do not have to be similar.
HI and I- H2O AND OH- HOCl and OCI-
no theycan not
No. In similar triangles, the ratios of the 3 pairs of corresponding sides are always equal.