Advertisements
Advertisements
Question
Name the element in the compound and give the formula of the following compound:
Nitric acid
Advertisements
Solution
| Element | Element in compound | Formula |
| Nitric acid | H, N, O Hydrogen, nitrogen, oxygen |
HNO3 |
APPEARS IN
RELATED QUESTIONS
Fill the following blanks with suitable words :
In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ....................
The element having atomicity 'four' is most likely to be :
Fill in the blank:
Formula of iron (ill) carbonate is _____ .
Correct the following statement:
A molecular formula represents an element.
Identify the following substance:
An alkaline gas A which gives dense white fumes with hydrogen chloride.
Write the formula of the following compound:
Sodium chloride
Write the formula of the following compound:
Sodium nitrate
Write the formula of the following compound:
Sodium plumbite
Write the formula of the following compound:
Calcium nitrate
Write the formula of the following compound:
Magnesium sulphate
Write the formula of the following compound:
Zinc oxide
Write the formula of the following compound:
Aluminium carbonate
Write the formula of the following compound:
Iron [II] hydroxide
Define the term Relative molecular mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaZnO2
Find the valency of the element which is underlined in the following formula.
- NaCl
- CO2
- Al (PO4)
- Ba (NO3)2
- CaCl2
Write the chemical formula for the following compounds
- Aluminium sulphate
- Silver nitrate
- Magnesium oxide
- Barium chloride
There is ______ oxygen atom is water molecule.
Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
