Answer:
come close together and stick to each other
Explanation:
The difference between three phases of a matter is the intermolecular interactions and thermal energy.
In case of gas, the intermolecular interactions are weak and thermal energy is high. So molecule move randomly, far from each other.
However in case of liquids the force of interactions are relatively stronger and the molecules are held together more effectively than gas.
Thus in order to condense a gas, we have to make the molecule come closer to each other so that they can be converted to liquid.
A.
come close together and stick to each other
Breaking glass
Filtering a mixture
Burning paper
(B) F
(C) O
(D) Ca
(E) Na
C6H12O6 glucose
C4H10 butane
H2O water molecule
Answer:analysis
Explanation:
b. sugar.
c. water.
d. vinegar.
Answer is: scientists use different types of model to show different characteristics (chemical properties) of compound.
For example, ball and stick model gives informations about bond lenght and space filling model gives information about space occupied by atoms.
In chemistry, the ball-and-stick model is a molecular model of a chemical substance which is to display both the three-dimensional position of the atoms and the bonds between them. The atoms are represented by spheres, connected by rods which represent the bonds. Every ball represent one atom in one molecule and they have different colors for different atoms (for example, carbon is black, hydrogen is white, nitrogen is blue).
There also other models: skeletal models, polyhedral models, composite models, computer-based models.