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marin [14]
3 years ago
8

What doe the elements in these groups have in common? a)alkali metals b) halogens c) noble gases

Chemistry
1 answer:
Tpy6a [65]3 years ago
4 0

Answer:

halogens please mark me s brainelist

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Which of the following words mean ä substance formed by chemically combining two or more elements
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B. Compound

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Base your answer to this question on the information below.During a bread-making process, glucose is converted to ethanol and ca
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Answer: 1 C6H12O6===> 2 C2H5OH + 2 CO2

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An element is a pure substance in which there are how many kinds of atoms?
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Answer:

One

Explanation:

An element is a pure substance in which there are only one kind of atom. Elements are distinct substances that cannot be split up into simpler substances.

Such substances consists of only one kind of atom. There are over a hundred known elements to date.

Generally, as a pure substance, the composition of an element is definite and they are homogenous in all parts.

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2 years ago
1. Write the balanced equation for the decomposition of hydrogen peroxide
earnstyle [38]

The balanced equation for the decomposition of hydrogen peroxide is H₂O₂(aq)→2H₂O(l)+O₂(g).

<h3>What is decomposition reaction?</h3>

Decomposition reactions are those reactions in which a compound will decompose into small molecules.

Hydrogen peroxide will decompose into water molecule and oxygen gas, balanced chemical equation will be represented as:

H₂O₂(aq) → 2H₂O(l) + O₂(g)

Where all atoms are present in equal quantities on both side of the equation.

Hence balanced decomposition reaction of H₂O₂ is H₂O₂(aq)→2H₂O(l)+O₂(g).

To know more about decomposition reaction, visit the below link:

brainly.com/question/27300160

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1 year ago
How did the construction of a parking lot, hiking trail, and playground affect the fish populations in the pond? PLEASE HELP.
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A),b),c),d) answers?
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3 years ago
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