60 pairs, because A and T are pairs, and C and G are pairs, and since there are only 2 different pairs, they both have to add up tobe 100, so 100-40=60
Answer:
physics, including the laws of gravity
Explanation:
The question is incomplete, here is the complete question:
Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine.
at 1,000 K
Calculate Kc for the reaction
<u>Answer:</u> The value of for the final reaction is
<u>Explanation:</u>
The given chemical equations follows:
We need to calculate the equilibrium constant for the equation, which is:
As, the final reaction is the twice of the initial equation. So, the equilibrium constant for the final reaction will be the square of the initial equilibrium constant.
The value of equilibrium constant for net reaction is:
We are given:
Putting values in above equation, we get:
Hence, the value of for the final reaction is
<h3><u>Answer;</u></h3>
1)Ba(ClO3)2(s)--->BaCl2(s)+3O2(g) - Redox reaction
2)2NaCl(aq)+K2S(aq)--->Na2S(aq)+2KCl(aq) - None of the above
3)CaO(s)+CO2(g)--->CaCO3(s) - None of the above
4)KOH(aq)+AgCl(aq)---->KCl(aq)+AgOH(s)
-precipitation reaction
5)Ba(OH)2(aq)+2HNO2(aq)--->Ba(NO2)2(aq)+2H2O(l) - Acid-base neutralization reaction
<h3><u>Explanation;</u></h3>
- Ba(ClO3)2(s)--->BaCl2(s)+3O2(g)
In this reaction, chlorine is reduced and oxygen is oxidized. Both reduction and oxidation occur in this reaction. Therefore, this is a redox reaction.
- 2NaCl(aq)+K2S(aq)--->Na2S(aq)+2KCl(aq)
In this reaction, both Na2S and KCl are soluble in water. Therefore the reaction is non of the above. Since it can not be a double displacement reaction in which two compounds react and cations and anions exchange their places to form new compounds.
- CaO(s)+CO2(g)--->CaCO3(s)
In this reaction CaO and CO2 combine to form calcium carbonate. This is a synthesis reaction, and thus its none of the above choices
- KOH(aq)+AgCl(aq)---->KCl(aq)+AgOH(s)
In this reaction, the salt KCl is soluble in water and AgOH is insolubel in water. Therefore, this is a precipitation reaction.
- Ba(OH)2(aq)+2HNO2(aq)--->Ba(NO2)2(aq)+2H2O(l)
In this reaction, nitrous acid acts as an acid and barium hydroxide acts as a base. Therefore, barium hydroxide and nitrous acid react to form salt and water. Therefore, this reaction is acid-base neutralization reaction.
Matter can be classified according to physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. Extensive properties depend on the amount of material and include mass and volume.