Advertisements
Advertisements
Question
Give one use of the following substance:
Brass
Advertisements
Solution
Brass: To make water taps and utensils.
APPEARS IN
RELATED QUESTIONS
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Define: Compounds
Define: Molecule
Mention three gaseous elements and write their molecular formulae
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Complete the statement with the correct words.
_______ are chemicals which are hydroxide (or oxides) of ______ eg. sodium hydroxide.
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
