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tankabanditka [31]
3 years ago
9

Petals are surrounded by

Chemistry
1 answer:
Talja [164]3 years ago
8 0
Petals surround the main part of the flower           the bud
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What are some examples of physical changes?
Ludmilka [50]

Some examples of physical changes are:

Breaking a glass

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Tearing paper

Mixing sand and water

Melting an ice cube

These all are physical changes because the composition of the matter does not change.

3 0
2 years ago
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Which of the following groups have seven valence electrons and are very reactive?
valina [46]

Answer:

Column 17 halogens

Explanation:

To answer the question we need to know the following;

What are valence electrons?

  • Valence electrons are outermost electrons in the outermost energy level of an atom of any element.

What are halogens?

  • Halogens are group 7 elements that have seven valence electrons. They include, chlorine, fluorine, iodine, etc

What is the reactivity of halogens?

  • Halogens are the most reactive non-metals in the periodic table. They react by gaining one electron to attain a stable configuration.
4 0
3 years ago
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lorasvet [3.4K]

The full question is shown in the image attached

Answer:

See explanation

Explanation:

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3 years ago
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Liono4ka [1.6K]
It is going through a physical change
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8 0
3 years ago
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