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kvasek [131]
3 years ago
6

To calculate the density of a sample of matter,you must divide it_____ by its______.

Chemistry
1 answer:
Ymorist [56]3 years ago
8 0
I think it is voulume and total mass
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What charge will an ion of phosphorus form?
Fed [463]

Answer:

A charge of -3

Explanation:

If you look on a periodic table you will find that phosphorus is 3 elements away from the nearest noble gas argon. This means that phosphorus would prefer a charge of -3!

8 0
3 years ago
Read 2 more answers
A bell hanging at the top of a tower has 8,550 j of energy. If it has a mass of 20 kg find the height of the Bell
kogti [31]

43.62m

Explanation:

Given parameters:

Energy = 8550J

Mass of bell = 20kg

Unknown:

Height of the bell = ?

Solution:

As this state, the bell possesses potential energy. Potential energy is the energy at rest in a body. It is due to the position of the body.

  Potential energy = m g h

m is the mass of the body

g is the acceleration due to gravity of the body

h is the height of the body

The unknown is h and we should solve for it.

  g = 9.8m/s²

     Input the variables;

        8550 = 20  x  9.8 x h

     h = 43.62m

learn more:

Potential energy brainly.com/question/10770261

#learnwithBrainly

3 0
2 years ago
Define mass number of an atom.​
Georgia [21]
The mass number of an atom is basically the total number of protons and neutrons.
6 0
2 years ago
Explain how the structure and bonding in bromine account for it's relatively low melting point. [3]
Sever21 [200]
Melting point is dependent on the intermolecular forces which means the bonds between the molecules of bromine as it is a simple molecular structure the intermolecular bonds of bromine are weak bcz they are weak vandervaal forces thats why Bromines melting point is low..In short when intermolecular bomds are weak the M.P is lower
6 0
2 years ago
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Given the atomic mass of select elements, calculate the molar mass of each salt.
arlik [135]

Answer:

See explanation

Explanation:

Molar mass is obtained as the sum of relative atomic masses as follow;

For CaBr = 40.08 + 79.90 = 119.98 g/mol

For BeBr =  9.012 + 79.90 = 88.912 g/mol

For CdBr2 = 112.41 + 2(79.90) = 272.21 g/mol

For CuBr2 = 63.55 + 2(79.90) = 223.35 g/mol

3 0
3 years ago
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