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forsale [732]
3 years ago
5

Consider the scenario.

Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
6 0

mathematical model

Explanation:

A scientific model that uses a computer program to predict volcanic eruption is a mathematical model.

A model is an abstraction of the real world. They help to understand a significant part of the real world.

  • Computer can be programmed to give certain predictions.
  • Computation powers of a computer are used in this procedure.
  • Humans have limits to which they can compute mathematical expressions.
  • Instead, they are taken in by a computer in form of programs.
  • this is a mathematical model run by a computer using a set of instruction called programs.

learn more:

Atomic models brainly.com/question/2965079

#learnwithBrainly

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A sample of nitrogen gas has a volume of 478 cm3 and a pressure of 104.1 kPa. What volume would the gas occupy at 88.2 kPa if th
nadezda [96]

<span>1.    </span>To solve this we assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant temperature and number of moles of the gas the product of PV is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

P1V1 =P2V2

V2 = P1 x V1 / P2

 V2 = 104.1 x 478 / 88.2

<span> V2 =564.17 cm^3</span>

6 0
3 years ago
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What is the mass of 3.25 moles of sodium hydroxide (NaOH)?
Dimas [21]

Answer:

<em>1 mole is equal to 1 moles NaOH, or 39.99711 grams.</em>

Explanation:

<em>Hope this helps have a nice day :)</em>

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3 years ago
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Converting the following mm Hg (torr) to standard
11Alexandr11 [23.1K]

Explanation:

Given:

20.5 torr

78.6 torr

225 torr

Change into atm

Computation:

We know that;

1 torr = 0.00131579 atm

So,

1. 20.5 torr

= 20.5 x 0.00131579 atm

= 0.02697

= 0.027 atm (Approx)

2. 78.6 torr

= 78.6 x 0.00131579 atm

= 0.103090

= 0.103 atm (Approx)

3. 225 torr

= 225 x 0.00131579 atm

= 0.2960

= 0.296 atm (Approx)

5 0
3 years ago
One difference between mixtures and pure substances is that
defon

Answer:

The mixture is made up of different atoms and pure substance is made up of same type of atom.

The main difference is that mixture can be separated into its component by physical mean while pure substances can not be separated by physical process

Explanation:

Mixture:

  • The properties of the mixture are not same and contains the properties of all those component present in it.
  • it is a combination of one or more Pure substances and can be separated by simple physical methods.
  • it have varying boiling and melting point

Examples are:

  • mixture of salt and sand
  • Salt water is mixture of water and NaCl and can be separated by physical mean.
  • Alloys: its a mixture of different metal
  • Air: mixture of gases

Pure Substance:

Pure substances are those made of same type of atoms all elements and compounds are pure substances.

  • it can not be separated by simple physical mean
  • it have very constant and consistent melting and boiling point

Examples are:

  • Water : contain only water molecule
  • All elements: all elements are pure substance made of same atoms
  • All compounds: can not be separated by physical mean.

8 0
3 years ago
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How do the cells in your body get energy?
Anastasy [175]
The cells get into your body by the lungs this answer is correct cause i had the same question and my teacher mark it correct
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