In classifying salts as neutral, acidic, or basic, it is important to take note of the strength of the acids and bases that they come from. A strong acid and strong base produce a neutral salt. A weak acid and strong base produce a basic salt. A strong acid and weak base produce an acidic salt. So the answers must be:
KCl = neutral (from HCl and KOH)
NH4Br = acidic (from NH4 and HBr)
K2CO3 = basic (from KOH and H2CO3)
NaCN = basic (from NaOH and HCN)
LiClO = basic (from LiOH and HClO)
Answer:
you see I didnt read it and I'm just guessing and I think its C
The most abundant element in the earths crust is oxygen
Answer : (C) 854.46 KPa.
Solution : Given,
Initial pressure = 400 KPa
Initial temperature = 110 K
Final temperature = 235 K
According to the Gay-Lussac's law, the absolute pressure is directly proportional to the absolute temperature at constant volume of an ideal gas.
P ∝ T
Formula used :
where,
= initial pressure
= final pressure
= initial temperature
= final temperature
Now put all the values in above formula, we get
By rearranging the terms, we get the value of new/final pressure.
= 854.5454 KPa 854.55 KPa
Answer:
A. 40 L
Explanation:
Volume and temperature are directly related; when one increases, the other also increases. This can be seen as in the equation V₁ / T₁ = V₂ / T₂. To find the final volume, rearrange the equation to V₂ = V₁ x T₂ / T₁ and plug in your values, then solve.