Answer:
The answer to your question is: c
Explanation:
A descomposition reaction is a chemical reaction in which the only one reactant yields two or more products.
a) HCl + NaHCO3 → H2O + CO2 + NaCl
This is not a descomposition reaction because there are two reactants not one, this option is incorrect.
b) 2Na + Cl2 → 2NaCl
THis option is also incorrect because there are two reactants in descompositin reaction there is only one reactant.
c) 2HgO → 2Hg + O2
There are only one reactant that yields 2 products, this is a descomposition reaction.
d) AgNO3 + NaCl → AgCl + NaNO3
THis is not a descomposition reaction because there are two reactants.
How does a river form a delta?
Deltas are wetlands that form as rivers empty their water and sediment into another body of water. ... Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land.
PH is the test of acidity or basicity of a solution. it follows the formula:
pH = pKa + log [salt] / [acid] where NaF is the salt and HF is the acid in this case.
By literature, Ka of HF is 3.5*10^-4
<span>pKa= -log(Ka)=</span><span> 3.46 </span>
<span>pH = pKa + log [NaF / [HF] </span>
4.05 = 3.46 + log [NaF / [HF]
log [NaF / [HF]<span> = 0.59
</span>
[NaF / [HF] = 3.89
Answer:
(a) gas c has the highest partial pressure
(b) gas b has the lowest partial pressure
(c) 0.233 atm
Explanation:
In the given figure, the number of atoms of each gas is:
gas a = 4
gas b = 3
gas c = 5
gas = 4
Using the total gas pressure of 0.931 atm and the partial pressure of each gas is directly proportional to its mole fraction. Therefore,
Partial pressure of gas a = 4/(4+3+5+4) * 0.931 = 0.233 atm
Partial pressure of gas b = 3/(4+3+5+4) * 0.931 = 0.175 atm
Partial pressure of gas c = 5/(4+3+5+4) * 0.931 = 0.291 atm
Partial pressure of gas = 4/(4+3+5+4) * 0.931 = 0.233 atm
(a) gas c has the highest partial pressure
(b) gas b has the lowest partial pressure
(c) 0.233 atm
A dipole-dipole interaction is a force of attraction between slightly positive hydrogen on one molecule and a slightly negative atomon another molecule while ion-dipole interaction is force between an ion and a polar molecule