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MArishka [77]
3 years ago
12

A substance made of two or more elements that have been chemically combined is a(n) ______.

Chemistry
2 answers:
RideAnS [48]3 years ago
5 0
Compound (for example: H2O)
Anvisha [2.4K]3 years ago
3 0

Answer: Compound

Explanation:

Element is a pure substance which is composed of atoms of similar elements. Example: Fe

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.  Example: CaCO_3

Mixtures are heterogeneous materials as they do not have uniform composition and the components are not evenly distributed throughout the material. Example: Sugar solution

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Answer:

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What characterizes a heterogeneous mixture?
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4 0
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MArishka [77]
I believe it is Sodium. I could be wrong though.
8 0
3 years ago
Which is a positive effect of using chemistry?
bogdanovich [222]

The positive effect of using chemistry is the generation of energy without fossil fuels.

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Hence, one positive effect of using chemistry is that energy can be generated without burning fossil fuels.

Learn more: brainly.com/question/2192784

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