Discuss WGU Integrated Physical Sciences (C165, C908) Exam Topic 1 Question 14

A water molecule consists of two hydrogen atoms bonded to an oxygen atom.

Which type of substance is water?

AMixture

BElement

CIsotope

DCompound

Suggested Answer: D

Understanding Molecular Structure:

Water Molecule: Consists of two hydrogen atoms and one oxygen atom chemically bonded together.

Classification of Substances:

Element (B): A pure substance of one type of atom.

Compound (D): A substance made of two or more different elements chemically bonded.

Isotope (C): Variants of a particular chemical element with different neutron numbers.

Mixture (A): A combination of substances not chemically bonded.

Chemical Bonding in Water: The hydrogen and oxygen atoms in a water molecule are chemically bonded, forming a compound.

Conclusion: Water is a compound.

Chemical Compounds: Definitions and examples of chemical compounds.

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21 comments · newest first

Nohemi 2 days ago

Right! It's a specific chemical formula.

Gracia 7 days ago

A mixture doesn't fit. It's not just random stuff.

Donte 12 days ago

Definitely! It has two hydrogen and one oxygen.

Stevie 17 days ago

I think water is a compound.

Jettie 23 days ago

So, D is the best answer!

Veronika 28 days ago

I remember learning that compounds have fixed ratios.

Christoper 1 month ago

Exactly, it's made of different atoms!

Rosina 1 month ago

Water is not an element, right?

Erick 1 month ago

I feel confused about mixtures and compounds.

Sylvia 2 months ago

Definitely a compound! Mixtures are different.

Jamey 2 months ago

Yeah, it has two hydrogen and one oxygen.

Dorian 2 months ago

I think water is a compound.

Gilbert 2 months ago

It can't be an element or isotope, so D is the only choice!

Beth 2 months ago

Wait, isn't water just H2O? How can it be anything else?

Cheryll 2 months ago

No way, it's a compound for sure!

Peter 3 months ago

I thought it was a mixture?

Merilyn 3 months ago

Water is definitely a compound!

Earleen 3 months ago

I’m pretty confident that water is a compound since it has a specific chemical formula, H2O.

Marsha 3 months ago

I feel like we discussed this in class, and I’m leaning towards option D, but what if it’s a mixture?

Jenifer 3 months ago

I remember something about mixtures and compounds, but I’m not entirely sure how to differentiate them in this context.

Scarlet 4 months ago

I think water is a compound because it’s made of different elements, right?

WGU Integrated Physical Sciences (C165, C908) Exam - Topic 1 Question 14 Discussion