What will the presence of H+ ions in a solution cause?
2 answers:
Answer : The correct option is, a reaction with magnesium to release hydrogen gas.
Explanation :
Acid : It is a substance that has ability of donating proton or hydrogen ion, .
The properties of an acid are :
Acids are sour in taste.
The texture of an acid solution is sticky or corrosive.
It changes the color of the litmus paper to red.
It react with a metal to give compound and release hydrogen gas.
Base : It is a substance that has ability of donating hydroxide ion, .
The properties of an base are :
Base are bitter in taste.
The texture of an base solution is slippery.
It changes the color of the litmus paper to blue.
It does not react with a metal.
As we per question, when the hydrogen ions present in the solution then the solution become more acidic in nature. That means the solution behave like an acid and follow the properties of an acid.
From the given options we conclude that, a reaction with magnesium metal to release hydrogen gas is the property of an acid. While the other options are the properties of a base.
Hence, the correct option is, a reaction with magnesium to release hydrogen gas.
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Answer: The rate constant is
Explanation ;
Expression for rate law for first order kinetics is given by:
where,
k = rate constant = ?
t = age of sample = 4.26 min
a = initial amount of the reactant = 2.56 mg
a - x = amount left after decay process = 2.50 mg
Now put all the given values in above equation to calculate the rate constant ,we get
Thus rate constant is [tex]0.334s^{-1}
Answer : The type of reaction described in the sentence is Synthesis or Combination
Explanation :
The balanced equation for the reaction between Phosphorous and Oxygen gas can be written as
From the above equation we can see that there are two different reactants ( P and O₂ ) which are combining with each other to give a single product.
This type of reaction is known as Combination or Synthesis.
A general form of Synthesis reaction is given below.
Here we can conclude that a synthesis / combination reaction is the one where 2 or more reactants combine together to give only one product .