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3 years ago

What properties distinguish solids from liquids liquids from gases solids from gases?

2 answers:

5 0

In a solid, the molecules are packed together, keeping shape. Liquid molecules are looser, and fit to the container they are in. Gas molecules are sporadic, and expand to fit their container

dmitriy555 [2]3 years ago

4 0

An experiment to study the relationship between the volume and amount of a gas.

Because the particles are so much closer in liquids and solids, there are chances for particles to attract (or repel). ...

Some properties are boiling and melting points, surface tension, vapor pressure, and crystalline structure.

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Predict the product 1-bromo propane is treated with sodium metal

Alja [10]

When 1-bromo propane is reacted with sodium metal, the propane and sodium bromide are formed.

Propane and sodium bromide are produced when the 1-bromo propane is reacted with sodium metal.
The Bromine which is present in the 2-bromopropane is removed through hydrogenation and combines with the sodium metal which results in the production of propane and sodium bromide.
So we can conclude that propane and sodium bromide are produced when the 1-bromo propane is reacted with sodium metal.

Learn more about 1-bromo propane here: brainly.com/question/25597694

Learn more: brainly.com/question/25952418

8 0

3 years ago

Novosadov [1.4K]

Answer: B. High precision

Explanation:

6 0

3 years ago

The density of potassium, which has the BCC structure, is 0.855 g/cm3. The atomic weight of potassium is 39.09 g/mol. Calculate

Delicious77 [7]

Answer:

For a: The edge length of the crystal is 533.5 pm

For b: The atomic radius of potassium is 231.01 pm

Explanation:

For a:

To calculate the lattice parameter or edge length of the crystal, we use the equation:

$\rho=\frac{Z\times M}{N_{A}\times a^{3}}$

where,

$\rho$ = density = $0.855g/cm^3$

Z = number of atom in unit cell = 2 (BCC)

M = atomic mass of metal = 39.09 g/mol

$N_{A}$ = Avogadro's number = $6.022\times 10^{23}$

a = edge length of unit cell = ?

Putting values in above equation, we get:

$0.855=\frac{2\times 39.09}{6.022\times 10^{23}\times (a)^3}\\\\\a=5.335\times 10^{-8}cm=533.5pm$

Conversion factor: $1cm=10^{10}pm$

Hence, the edge length of the crystal is 533.5 pm

For b:

To calculate the edge length, we use the relation between the radius and edge length for BCC lattice:

$R=\frac{\sqrt{3}a}{4}$

where,

R = radius of the lattice = ?

a = edge length = 533.5 pm

Putting values in above equation, we get:

$R=\frac{\sqrt{3}\times 533.5}{4}=231.01pm$

Hence, the atomic radius of potassium is 231.01 pm

4 0

3 years ago

Energy is conserved in chemical reactions. It is neither created nor_____

aivan3 [116]

Answer:

destroyed, from, endothermic

Explanation:

Energy is conserved in chemical reactions. It is neither created nor destroyed but can be transferred from one form to another.

An exothermic reaction transfers energy from the reacting substance to the surroundings. The body of the container feels warm. An exothermic reaction has a negative value of enthalpy.

An endothermic reaction transfers energy from the surroundings to the reacting substance. The body of the container feels cold. In an endothermic reaction, enthalpy is positive.

6 0

3 years ago

Which change occurs when a barium atom loses two electrons?(1) It becomes a negative ion and its radius decreases.(2) It becomes

Tcecarenko [31]

<h2>Changes Occurs when a Barium Atom - Option 3 </h2>

When a barium atom loses two electrons it becomes a positive ion and its radius decreases. Barium (Ba) has atomic number 56 so it has 2 electrons in first shell of an atom to become stable according to duplet rule. Then other 52 electrons revolve in the shells according to octet rules.

Another 2 electrons are in the outermost shell. To become stable electrons lose to form barium ions (Ba+2). Hence, by losing 2 electrons the outermost shell will be diminished so its radius decreases and by losing electrons it becomes positive ions.

5 0

4 years ago

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