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Galina-37 [17]
4 years ago
11

The mass of a substance contained in a unit of volume is called

Chemistry
1 answer:
WITCHER [35]4 years ago
3 0
Density should be your answer. Density is the measure of a mass per unit volume. 
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If a molecule with a central atom that has five regions of electron density has exactly one lone pair of electrons. What will it
Hoochie [10]

The molecular geometry of a molecule with a core atom that has five areas of electron density and precisely one lone pair of electrons is called a disphenoidal or seesaw molecular geometry.

What is meant by disphenoidal or seesaw molecular geometry?

  • Four bonds are made to an atom in the center of a disphenoidal or seesaw-shaped molecular structure, which has overall C2v structural symmetry. The fact that it resembles a playground seesaw is how it got the moniker "seesaw." Tetrahedral or, less frequently, square planar geometry is produced when four bonds to a center atom are present.
  • The core atom of a molecule with a steric number of 5 and bonds to 4 additional elements and 1 lone pair is said to be in the seesaw geometry.

Learn more about geometry here:

brainly.com/question/16178099

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6 0
2 years ago
The diving velocity of a falcon can reach 322 km/hr. If the falcon maintains this velocity for 7.2 seconds (0.002 hours), what w
Degger [83]
Multiply velocity and time and you get 0.644 km, but remember that displacement has a direction and so does velocity, so because velocity is positive in the direction that the falcon is going you have a positive displacement.
8 0
3 years ago
Read 2 more answers
A sample of an ideal gas has a volume of 0.500 L at 25 degrees celcius and 1.20 atm pressure. What is its volume at 75 degrees c
NemiM [27]
The ideal gas law is PV= nRT.
First you need to manipulate the equation to splice for volume,
Which will be V= nRT/P

Now you need to input the numbers for each variable. Make sure to remember what the value R equals and it’s units. R= 0.08206 L•atm/n•K
4 0
3 years ago
How many moles of potassium are contained in 150 g of potassium
BaLLatris [955]

Answer:

150 g of potassium contained 3.8 moles of potassium.

Explanation:

Given data:

Mass of potassium = 150 g

Moles of potassium = ?

Solution:

Number of moles = mass/ molar mass

Molar mass of potassium = 39 g/mol

Now we will put the values in formula:

Number of moles = mass/ molar mass

Number of moles = 150 g/ 39 g/mol

Number of moles = 3.8 mol

150 g of potassium contained 3.8 moles of potassium.

3 0
4 years ago
The octet rule pertains to:
Vinil7 [7]
I think the answer to c
4 0
3 years ago
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