Which statement(s) is/are indicative of a covalent bond?
1) Electron movement is concentrated somewhere between the two bonded nuclei.
II) Electron density is focused on one element in the bond, generally resulting in the formation of a crystalline substance.
III) The greatest probability of finding the shared electrons is in the area of orbital overlap.
IV) The valence electrons involved in the bond are moving solely around the nucleus of the atom with the higher electron affinity.
es )
I and II
ll and I
I and III
I, III and IV
An substance for a crystalline is NaCl

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return