Generally there are two kinds of bleaching agents, notably chlorine (and many chlorine compounds such as sodium hypochlorite) and peroxygen bleaching agents (such as hydrogen peroxide). This isn't to say there aren't others, because there are, such as ammonia. (Note, mixing traditional bleaches and ammonia is very dangerous)
Answer:
Sick Core corona +iep =Qurintine
action: jimmy touched the hot stove
reaction: jimmy got burned
Answer:
endothermic reaction a reaction which absorbs heat from the surrounding space
enthalpy of reaction The amount of heat released or absorbed by a reaction
exothermic reaction a reaction which gives up heat to the surrounding space
heat of reaction The change in enthalpy (heat content) that occurs in the process of converting reactants to products in a chemical reaction
specific heat the amount of heat required to raise the temperature of one gram of a given substance by one degree Celsius
Explanation:
I just did the Enthalpy assignment
Answer:
(a) Chlorine atom
(b) 0
(c) 109.5°
(d) about the same
Explanation:
Perchlorate is a negatively charged molecule that is composed of one carbon atom and four oxygen atoms. In this molecule, the <em>central chlorine atom</em> that is present in +7 oxidation state, is covalently bonded to four oxygen atoms.
Thus the number of <u>bond pairs is 4</u> and the number of <u>lone pairs on the central chlorine atom is 0</u>.
So according to the VSEPR theory, perchlorate ion has a <em>tetrahedral geometry</em>. Therefore, the<em> </em><u>ideal bond angle for the perchlorate ion is 109.5°</u>.
<u>The actual bond angle of perchlorate is about the same as ideal bond angle.</u> This is because the perchlorate is <em>resonance stabilized</em> and thus all the chlorine-oxygen bonds are equivalent.