Answer:
A. 0.31 mol NaNO2
Explanation:
Buffer solutions are the solutions that resist changes in pH on addition of small amount of acid or base.
Buffer solutions usually contain the mixture of a weak acid and its salt, or a weak base and its salt.
Among the options listed in the question, only NaNO2 is the salt formed from the nitrous acid.
Sound waves are not a form of electromagnetic radiation
It is true it is used for inflammation and pain in muscle and joints it is also used for muscle and bone disorders
Answer:
<h3>The answer is 2.67 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass of metal = 32 g
volume = 12 cm³
The density is
We have the final answer as
<h3>2.67 g/cm³</h3>
Hope this helps you
Benzene
- Benzene has low density than the water itself of about 0.9 g/cm³
Low denisty object than the water usually <u>floats on the water</u>.
Another example: orange peel which floats on water has density of about 0.84 g/cm³
