I think sulphate is answer.
Exothermic.
To remember this, ‘exo’ means outside, and ‘thermic’ means heat. It gives the outside (exo), heat (thermic).
Rules:
1) The oxidation number of a monatomic ion equals the charge of the ion.
2)The oxidation number of a Group 1 element in a compound is +1.
3) The oxidation number of a Group 17 element in a binary compound is -1.
4) The sum of the oxidation numbers of all the atoms in a neutral compound is 0.
KCl is an ionic compound. Consists of K+ ions and Cl- ions.
Oxidation of K= +1 (rules 1 and 2)
Oxidation of Cl= -1 (rules 1 and 3)
Rule 4 also applies- +1 + (-1)= 0- a neutral compound
Hope this helps :)
Explanation:
The answer is D because there is no forces of attraction or repulsion between gas particles .
Answer:
It is easier for sound waves to go through solids than through liquids because the molecules are closer together and more tightly bonded in solids.
Explanation:
