The subscripts tell you <em>how many atoms</em> of an element are in one formula unit of a compound.
If there is no subscript, there is only one atom of the element.
In one formula unit of Na₂PO₃F, there are
Two atoms of sodium (Na)
One atom of phosphorus (P)
Three atoms of oxygen (O)
One atom of fluorine (F)
The bowl of mixed fruits is a mixture because there are several things making up the object. Hence, option (B) is correct.
What is a mixture?
- The matter is categorized as mixtures and pure substances.
- A mixture is defined as a combination of substances that are not chemically mixed.
- A mixture can exist in solid, liquid, or gas form.
- A mixture can exist in the same or in a different phase. It can be homogenous or heterogeneous.
- If the substances are combined in the same phase, then the mixture is a homogeneous mixture.
- But if the substances are combined in different phases, then it is a heterogeneous mixture.
Therefore, the mixed fruit bowl is a mixture, because there are several things making up the object.
Hence, option (B) is correct.
To learn more about mixture, visit: brainly.com/question/12160179
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I believe it's alkali metals and alkaline earth metals.
1 mole H2O ---------------------- 6.02x10²³ molecules
4 moles H2O--------------------- y molecules
y = 4 * 6.02x10²³
y = 2.4x10^24 molecules
answer b
hope this helps!.
