2CI-
CI2
Mg
Mg2+
2+3a+9a
false very few minerals are a compound
Answer: 1.
Explanation: The number 1 should never be written in a subscript because the chemical symbol is already there.
Answer:
1
Explanation:
The subscript of 1 is never written in a chemical formula.
In the given question, melting cheese is a type of physical change.
A physical change is defined as a change in the physical properties of a substance, such as its shape, size, or state, without changing its chemical composition.
When cheese is melted, it changes from a solid to a liquid state, but its chemical composition remains the same. The molecules in the cheese are simply rearranged as it is heated, causing it to melt.
Therefore, melting cheese is a physical change. This is because the cheese changes from a solid to a liquid state, but its chemical composition remains the same.
Learn more about physical change here:
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A. A liquid changes to a solid.
B. A solid changes to a gas.
C. A gas is released from a liquid.
D. A liquid changes to a gas.
Option C:
A gas is released from a liquid
Hope this will help :)