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jeka57 [31]
3 years ago
9

True or false? Steel is a chemical element.

Chemistry
2 answers:
Irina-Kira [14]3 years ago
8 0
I think answer is false
dem82 [27]3 years ago
3 0
Steel is a blend of iron and carbon combined with at least one different metals or nonmetals. Since steel is a blend instead of a substance compound, steel does not have a set synthetic compound recipe. The naming tradition for steel relies on the steel's piece—what is blended in with the iron, for example, carbon steel or tungsten steel.
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A Brønsted-Lowry acid is a substance which produces a. hydroxide ions in aqueous solution. b. accepts protons from other substan
kompoz [17]

Answer:

A Brønsted-Lowry acid is a substance which donates protons to other substances. (option c.)

Explanation:

For Brønsted-Lowry acids, are the ones that donates protons and bases, the ones that accepts H⁺ from others compounds.

In this reaction:

NH₃  +  HCl → NH₄Cl

The hydrocloridic acid donates the proton to ammonia to make ammonium chloride. So the HCl, is a Brønsted-Lowry acid while the ammonia is a base.

There are cases, like water that behaves as acid and base.

These compounds are called amphoteric because it can donate H⁺ or OH⁻ at the same time.

H₂O ⇄  H⁺  +  OH⁻

5 0
3 years ago
Why would it be difficult to sift the iron fillings from the sand
slamgirl [31]

Explanation:

Sand and iron fillings have the same size of particles.

It would be difficult to use a mesh to separate them. Also, sometimes , the iron filing clings well to the surface of the sand particles.

The best way to separate them is to use a bar magnet. The magnetic properties of the iron fillings will get it attracted to the bar magnet leaving the sand particles behind.

learn more:

Extraction brainly.com/question/5881840

#learnwithBrainly

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3 years ago
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Answer:

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6 0
2 years ago
Which stament about energy is mostly correct
klasskru [66]
I would say C is the most correct. 
In D it depends on what water source you're using. Let's say it is a waterfall, then the source of the water (melting ice or a lake) may disappear in the future. 
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6 0
3 years ago
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