Q.1.
What is the name of NF3?
Q.2.
What is the name of K2O?
Q.3.
Is sugar (C12H22Oan element or a compound?
Q.4.
What is the formula for Sodium Bromide?
Q.5.
What is the formula for Calcium Chlorate? (refer to your polyatomic ions sheet)
Q.6.
Atoms combine to form _______.
Q.7.
Bonds between atoms in a molecule form as a result of the sharing of?
Q.8.
How many elements are in HHe
Q.9.
Water (H2O) freezing is an example of:
Q.10.
A compound consists of two or more elements bound together.
Q.11.
A chemical change always results in the formation of a:
Q.12.
Which of the substances below is a compound?
Q.13.
Air is a compound.
Q.14.
Composition of compounds can be separated.
Q.15.
Compounds are made up of two or more atoms physically combined.
Q.16.
The properties of the elements that make up a compound are usually very similar to the compound itself.
Q.17.
Is Iron (Fe) an element or a compound?
Q.18.
How many elements are represented in the compound?Na2CO3
Q.19.
Which of the following is not a compound?
Q.20.
Can compounds be found in the periodic table?