Answer:
<h2>2.49 g/cm³</h2>Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer as
<h3>2.49 g/cm³</h3>Hope this helps you
Which of the following pairs lists a substance that can neutralize HNO, and the salt that would be produced from the reaction?
1 answer:
Answer:
To neutralize nitric acid we will need a base which is ammonia.
Explanation:
Neutralization reaction is defined as the chemical reaction in which an acid reacts with a base to produce a salt and water molecule.
The chemical equation for neutralization reaction follows:
So, in order to neutralize nitric acid we will need a base which is ammonia.
As we know that ammonia is Bronsted lowry base which can accept proton. So, ammonia will accept the proton given by nitric acid to form ammonium ion.And this ammonium ion formed carries positive charge which combine with nitrate ion to form ammonium nitrate as a product.
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Answer: The Diver's air tank is filled with oxygen gas.
The filling of air tank while keeping in water can be explained in reference to the Charles' Law.
Charles' Law: It states that the volume of the ideal gas is directly proportional to the absolute temperature at constant pressure.
(at constant Pressure)
The Scuba tank contains cold water and is present at high pressure. The gas which is put in the tank will be compact and would not expand. As the temperature is low inside the tank, hence by using Charles' Law, the volume will also decrease inside the tank.
When the air tank is filled, it is always kept in a tub of water because the pressure is high and hence, more oxygen gas can be filled inside the air tank.