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2 years ago

Which of the following phases of matter has a fixed shape and volume

Chemistry

2 answers:

nikdorinn [45]2 years ago

7 0

Answer:

Solid phase has a fixed shape and volume

Explanation:

A solid has a definite volume and a definite shape.

A liquid a definite volume and no definite shape.

A gas no definite volume and no definite shape.

Solids

1. Solids have a definite volume and definite shape

2. The particles present in a solid are very closely packed since the intermolecular forces between them are very strong. The molecules do not move apart.

Liquids

1. Liquids have a definite volume and no definite shape

2. The particles present in a liquid are closely packed since the intermolecular forces holds the molecules close together. The molecules slide over each other.

3. Liquids take up the shape of the container

Gases

1. Gases have no definite volume and no definite shape

2. The particles present in a gas are very loosely packed since the intermolecular forces are very weak.

3. There are no attractive forces between the molecules.

4. Gases spread through the container

kodGreya [7K]2 years ago

4 0

A matter in the solid phase has a fixed shape and volume.

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The shape of a molecule is tetrahedral. How many lone pairs are most likely on the central atom?

kvv77 [185]

The number of lone pairs that are most likely found on the central atom is zero. There are no lone pairs found on the central atom.

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3 years ago

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This increase in blood pHpH due to hyperventilation disrupts O2O2 transport by causing the deprotonation of various residues of

Genrish500 [490]

The question is incomplete as it does not have the options which has been provided in the attachment.

Answer:

1. sudden decrease

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Explanation:

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Therefore the selected options are correct.

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3 years ago

Which of the following is a way in which elements and compounds are similar?

nordsb [41]

Answer:

Compound Element

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Elements and compounds are purely homogeneous substances and they have a constant composition throughout. Elements and compounds cannot be separated into their respective constituents by physical means. Compounds and mixtures are made up of different elements or different atoms.

Hopefully this helps you!!!!

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3 years ago

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3 years ago

The molar madd of Ca(OH)2

Nonamiya [84]

What you have to do is find a periodic table and add the mass of each atom that the compound is made of.

Ca= 40.1
O= 16.0
H= 1.01

keep in mind that you have to also account for how many atoms of each there are in the molecule. for example, in Ca(OH)2, there are one Ca, two O and two H

so the molar mass of Ca(OH)2= 40.1 + (2 x 16.0) + (2 x 1.01)= 74.12 g/mol

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3 years ago