Answer: Carbon monoxide, or "CO", is a compound. This is a homogeneous compound (not a mixture).
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Answer:
Cement is a combination of calcium, silicone, aluminum, iron and lots of other ingredients to make side walks, home made crafts, etc. The person who invented concrete is Joseph Aspdin.
Explanation:
it is either "aweak acid or a lousy (or very weak) acid"
Sugar cube is my answer
Hope this helps!
Let me know if i'm wrong.
