Answer;
c.electrons move from the wool to the rod.
Explanation;
-Atoms are generally neutral (have the same number
of protons as electrons). Substances lose electrons to become
positively charged, while other substances gain electrons to become negatively charged.
-When a plastic rod is rubbed with woolen
cloth or wool, a transfer of electrons occurs (from the wool to the rod). The rod gains electrons; thus, it
is negatively charged.
He improved and followed from the works of Luigi Galvani, which used a 'frog galvanoscope' as a prototype of measuring current. He recognized that a compass could actually measure current, given that it is placed near coil of wire.
4 because electrons and protons have the same magnitude and electron is - and proton is +.
1s2 2s2 2p1
fifth electron is in 2p orbital
so answer is 2 2 -1 -1/2 , or 2 2 -1 1/2
*1/2 and -1/2 are spins, so they are interchangeable when writing the first electron in the ml
Answer:
Explained below
Explanation:
1) Hydrogen bonds are formed between molecules
All these is because the bonds are flexible in such a manner that in the liquid phase, the molecules are relatively close to each other.
However, it is also noted that the hexagonal arrangement of ice is formed the bonds will be locked in place which will result in the average distance between molecules actually increasing which in turn means given a result that ice is less dense than liquid water.
B) Water possesses a high boiling point: This is because the Hydrogen oxygen bond or O-H bonds are highly polar and the Hydrogen atoms in this bond are located at two corners of the tetrahedron shaped like bond shape which gives water it's high molecular polarity in which in turn makes the molecules to stick together.
