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dolphi86 [110]
3 years ago
13

Which label belongs in the area marked X? can reproduce by budding can reproduce by fragmentation with regeneration reproduce in

two stages reproduce in a single stage
Chemistry
1 answer:
marusya05 [52]3 years ago
4 0

Answer:

Nucleus.

Explanation:

The sponge is a multicellular organism that consists of pores that allows water to move through the body. Sponges belong to the kingdom Animalia and phylum Porifera. Sponges can reproduce by budding. Sponges are placed in kingdom Animalia because they are unable to make their own food, made of more than one cell, and absence of cell wall.

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For each property listed, identify the type of element it describes.
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Answer:

1.Very good electrical conductivity :<u> Metals</u> (Decreacing order of conductivity)

  • <em>Silver > Copper > Gold > aluminium</em>

2. Amphoteric <u>: Metal elements</u>

  • <em>Beryllium , Aluminium , Zinc </em>,

3.Gaseous at room temperature: mostly <u>Nobel gases elements</u> and some non - metal elements.

  • <em>Helium ,neon , argon , krypton , fluorine , Oxygen , nitrogen</em>

4.Solid at room temperature:<u> Mostly Metals</u> (few non-metals, metalloid elements)

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<em>Non- metals(Carbon ,Boron )</em>

<em>Metalloids(antimony)</em>

<em>5.</em> Brittle <em>: </em><u>non - metals </u>(can't be rolled into wires)

<em>Hydrogen , carbon , sulfur , phosphorus</em><u> </u>

Explanation:

6 0
3 years ago
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Elemental iodine (I 2) is a solid at room temperature. What is the major attractive force that exists among different I 2 molecu
Ulleksa [173]

Explanation:

As I_{2} is a covalent compound because it is made up by the combination of two non-metal atoms. Atomic number of an iodine atom is 53 and it contains 7 valence electrons as it belongs to group 17 of the periodic table.

Therefore, sharing of electrons will take place when two iodine atoms chemically combine with each other leading to the formation of a covalent bonding.

Hence, weak forces like london dispersion forces will be present between a molecule of I_{2}.

The weak intermolecular forces which can arise either between nucleus and electrons or between electron-electron are known as dispersion forces. These forces are also known as London dispersion forces and these are temporary in nature.

thus, we can conclude that london dispersion force is the major attractive force that exists among different I_{2} molecules in the solid.

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Generally, systems move spontaneously in the direction of increasing entropy. TRUE FALSE
allochka39001 [22]

Answer:

true

Explanation:

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