Answered

Get expert advice and insights on any topic with IDNLearn.com. Our community provides timely and precise responses to help you understand and solve any issue you face.

Which pure substance can be classified as an element?

A. [tex]H_2[/tex]
B. [tex]NO_3[/tex]
C. [tex]NaCl[/tex]
D. [tex]H_2SO_4[/tex]

Sagot :

GinnyAnsweridn
To determine which pure substance can be classified as an element, we need to understand the definitions of elements and compounds:

1. Element: A substance that consists of only one type of atom. Elements cannot be broken down into simpler substances by chemical means.
2. Compound: A substance formed when two or more different types of atoms bond together.

Now let's look at each option provided:

1. [tex]\( H_2 \)[/tex]: This substance consists of two hydrogen atoms bonded together. Since there is only one type of atom (hydrogen), [tex]\( H_2 \)[/tex] is classified as an element.
2. [tex]\( NO_3 \)[/tex]: This substance consists of nitrogen and oxygen atoms. Since it contains more than one type of atom, [tex]\( NO_3 \)[/tex] is a compound.
3. [tex]\( NaCl \)[/tex]: This substance consists of sodium and chlorine atoms. Since it contains more than one type of atom, [tex]\( NaCl \)[/tex] is a compound.
4. [tex]\( H_2SO_4 \)[/tex]: This substance consists of hydrogen, sulfur, and oxygen atoms. Since it contains more than one type of atom, [tex]\( H_2SO_4 \)[/tex] is a compound.

From the above analysis, we can conclude that the only pure substance listed that can be classified as an element is [tex]\( H_2 \)[/tex].

Thus, the correct answer is [tex]\( H_2 \)[/tex], which corresponds to choice number [tex]\(\boxed{1}\)[/tex].
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com has the answers you need. Thank you for visiting, and we look forward to helping you again soon.