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IceJOKER [234]
3 years ago
11

Find the number of atoms of arsenic in 28.62 moles of arsenic

Chemistry
1 answer:
frutty [35]3 years ago
4 0
The number of the atom would be half the numbers that is there 
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When the pressure on a solid is greatly increased, the volume of the solid shows almost no change.
Veronika [31]

Answer:

The volume of the solid shows no change

Explanation:

Pressure only affects gaseous system. This is because the force of cohesion between the gaseous molecules are negligible(i.e very small) and their molecules are far apart hence the gaseous molecules are easily compressed. But for solid, the Particles are very close and tightly packed together with a strong force of cohesion hence pressure has no effect on it. This account for the definite shape and definite volume of solid

4 0
3 years ago
How many moles are present in 150g of ammonium hydrogen phosphite
trapecia [35]

The moles  that  are  present  in 150 g  of ammonium  hydrogen phosphite  is  1.136 moles


       <u><em>calculation</em></u>

<em>The formula  of ammonium hydrogen  phosphite = (NH4)2HPO4</em>

moles = mass/molar mass

mass= 150 g

molar mass of (NH4)2HPO4  =  [ ( 14+ 1x4)2)  +1 + 31  + ( 4 x16)] =132 g/mol

 moles is therefore = 150  g/ 132 g/mol  =1.136  moles

4 0
3 years ago
A sample can not be broken down physically or chemically what is it
KIM [24]

Answer:

Pure Substance. A sample of matter, either a single element or a single compound, that has definite chemical and physical properties. Element. A pure substance that cannot be broken down into other substances by chemical or physical means.

Explanation:

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6 0
3 years ago
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What is the difference between conjugate acid-base pair?
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Answer:

B. a H+ ion is the answer dear.

Explanation:

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5 0
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