Chemistry Fill in the blanks Set 17

Chemistry Fill in the blanks Set 17

1. Distilled water is a __________ substance.
Ans: Pure
 
2. Air we breathe is a _________ of gases.
Ans: mixture
 
3. __________ is a mixture of liquid fat, protein and water.
Ans: milk
 
4. ______ is the smallest particle of an elemet.
Ans:atom
 
5. Sulphur contains ________atoms only.
Ans: Sulphur
 
6. Atoms of ______ elements are not identical.
Ans: different
 
7.There are ________ elements occur in nature.
Ans: 92
 
8. Hydrogen and Helium are the main elements in the ______ and _______.
Ans: universe, stars
 
9.Of the 92 natural elements _______ are metals.
Ans: 70
 
10. Boron is a _____
Ans: metalloid