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____ [38]
3 years ago
14

How many significant figures are in the number 20300?​

Chemistry
1 answer:
arlik [135]3 years ago
3 0

Answer:

There are three significant figures in the number 20300

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Identify the following as either a chemical symbol or a chemical formula. CO Co W Be HI
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Answer:

CO is the chemical formula for carbon monoxide.

Co is the chemical symbol for cobalt.

W is the chemical symbol for tungsten.

Be is the chemical symbol for beryllium.

HI is the chemical formula for hydrogen iodide.

Explanation:

Chemical symbols are either written as a single uppercase letter (ex. O) or an uppercase letter and a lowercase letter (ex. Na).

Chemicals can be anything else! For example CO or even somthing like LiIO.

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Based on the activity series, which one of the reactions below will occur (Spontaneous)? A. Mn (s) + NiCl2 (aq) → MnCl2 (aq) + N
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Answer:

Mn (s) + NiCl2 (aq) → MnCl2 (aq) + Ni

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Nickel has a less negative electrode potential than manganese hence it is displaced from an aqueous solution of its salt by manganese spontaneously.

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When two hydrogen atoms combine with one oxygen atom, what is the result?
vitfil [10]

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