Answer:
C. physical
Explanation:
A mixture is a physical combination. Mixtures are combinations of compounds and molecules without any chemical reaction taking place.
Mixtures have the following properties:
- They have an indefinite composition i.e they consist of two or more elements and or compounds in any proportion by mass
- Their constituents retains their identities i. e physical property is retained.
- Their constituents reacts differently to changed conditions.
- They are easily separated into constituents by physical methods
Answer:
<h3>KBr + I- ---------> KI + Br-</h3>
Explanation:
Single Displacement reaction is a chemical Reaction in which one element in the salt is replaced with another element
for example,
A-B + C -------> A-C + B
electropositive replaces only electropositive elements from compound. same is true for electronegative element
in first reaction I being electro negative replaces Br from KBr so this is a single displacement reaction
Molecule is a chemical substance that cannot be broken down into another chemical substance.
Answer:
in the excited state
Explanation:
Because in excited state an atom has more energy
