Answer:
Chemical properties,
Explanation:
Let us understand all the given terms
a) catalyst properties: this is the property of a substance by virtue of which it helps to modulate the rate of reaction, and itself remains unconsumed during the reaction (does not react). Example : enzymes
b) chemical properties: this is the property of a substance by virtue of which it reacts with another substance to give a new product of different structure, bonding, chemical and physical properties.
Example : hydrogen reacts with oxygen to give water.
So here the hydrogen is undergoing reaction with oxygen and this is chemical property of hydrogen.
c) Physical properties: This is the property which is related to the nature of a substance to exit in nature. for example hydrogen is a gas is its physical property not chemical.
d) mineral properties: It is again a kind of physical property.
ocean-continent
convergent plate boundaries
divergent plate boundaries
transform plate boundaries
Hello!
Bromine can be classified as a pure substance.
Why?
Bromine is an element with atomic number 35 on group 17 of the Periodic Table. That's the first sign that shows us that it is a pure substance.
But the fact that it has a clear and defined boiling and melting point is a sign that we are in the presence of a pure substance. Pure substances are characterized by defined boiling and melting points.
Mixtures usually have a range of temperatures in which they melt and boil.
Have a nice day!
Answer :
As we know that there are two types of solids.
(1) Amorphous Solids
(2) Crystalline Solids
Amorphous Solids : It is a type of solids in which the constituent particles of the matter are arranged in the random manner.
That means there is no proper arrangement of atoms in solid lattice but the atoms or molecules are closely spaced that means they can move freely from one place to another.
The examples of amorphous solid are, plastics, glass, rubber, metallic glass, polymers, gel, fused silica, pitch tar, thin film lubricants, wax.
Crystalline Solids : It is a type of solids where the constituent particles of the matter are arranged in the specific manner.
That means there is a proper arrangement of atoms in solid lattice. They do not have space between the molecules or atoms and they can not move freely from one place to another.
The examples of crystalline solids are, quartz, calcite, sugar, mica, diamonds, snowflakes, rock, calcium fluoride, silicon dioxide, alum.