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2 years ago

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Why do solids exist ?

2 answers:

lubasha [3.4K]2 years ago

7 0

Answer:

A solid's particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely; they can only vibrate. As a result, a solid has a stable, definite shape and a definite volume. Solids can only change shape under force, as when broken or cut.

aev [14]2 years ago

3 0

$Question$

Why do solids exist ?

Answer:

Hi, There! Frozen here! I'm here To help :)

<em><u>properties depend on the properties of the atoms that form the solid, on the way those atoms are arranged, and on the forces between them.</u></em>

Explanation:

Here's The Defintion of a Solid

<em>A solid is a sample of matter that retains its shape and density when not confined. The adjective solid describes the state, or condition, of matter having this property</em>

<em>And Here are some Examples↓</em>

<em>Examples of solids are </em>

<em>Wood</em>
<em>Metal</em>
<em>glass</em>
<em>rocks</em>

<em>Hope this helps!</em>

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Ammonium dihydrogen phosphate, formed from the reaction of phosphoric acid with ammonia, is used as a crop fertilizer as well as

Tema [17]

Answer:

a)The mass percentages of nitrogen and phosphorus in the compound is 24.34% and 26.95% respectively.

b) 14.78 grams ammonia is incorporated into 100. g of compound.

Explanation:

a) Ammonium dihydrogen phosphate that is $NH_6PO_4$ .

Molecular mass of ammonium dihydrogen phosphate = M

M = 115 g/mol

Percentage of an element in a compound:

$\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100$

Percentage of nitrogen:

$\frac{1\times 28 g/mol}{115 g/mol}\times 100=24.34\%$

Percentage of phosphorus:

$\frac{1\times 31g/mol}{115 g/mol}\times 100=26.95\%$

b) Percentage of ammonia in 1 molecule of ammonium dihydrogen phosphate.

Molar mass of ammonia = 17 g/mol

$\%=\frac{17 g/mol}{115 g/mol}\times 100=14.78\%$

Amount of ammonia in 100 grams of compound:

14.78% of 100 g of ammonium dihydrogen phosphate:

$\frac{14.78}{100}\times 100 g=14.78 g$

14.78 grams ammonia is incorporated into 100. g of compound.

4 0

3 years ago

“Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules.” which state of

Anna [14]

I think its c because solid,liquid nor plasma really fits to the description and i don't really know the last one so the best option is probably C.

7 0

3 years ago

Read 2 more answers

How many moles of oxygen are produced when 29.2 g of water is decomposed according to H20 H2 + O2

Katarina [22]

8.1moles

Explanation:

Given parameters:

Mass of water to be decomposed = 29.2g

Unknown:

Number of moles of oxygen.

Solution:

To solve this problem, we first write the balanced reaction equation :

2H₂O → 2H₂ + O₂

Now convert the given mass of the water to number of moles;

Number of moles of water = $\frac{mass}{molar mass}$

Molar mass of water = 2(1) + 16 = 18g/mol

Number of moles of water = $\frac{29.2}{18}$ = 16.2moles

From the balanced reaction equation:

2 moles of water produced 1 mole of oxygen gas;

16.2 mole of water will produce $\frac{16.2}{2}$ = 8.1moles of oxygen gas

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

5 0

3 years ago

Proportional means that

FromTheMoon [43]

Corresponding in size or amount to something else.

5 0

3 years ago

the elements iron and oxygen can react to form the compound iron oxide. what type of reaction is this? please explain.

rjkz [21]

Your reaction
.. Fe + O2 ---> FexOy
for this reaction..
.. the Fe on the left is in the 0 oxidation state
.. the Fe on the right is in the +(2y/x) oxidation state
.. the O on the left is in the 0 oxidation state
.. the O on the right is in the -2 oxidation state
meaning
.. the O is reduced... . . (it's reduced in oxidation state)
.. the Fe is oxidized.. . .(oxidation state increased)
this is a REDOX reaction

*********
AND.. it's also a synthesis reaction.. (aka combination reaction)

4 0

3 years ago

Read 2 more answers