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Leviafan [203]
2 years ago
14

Response should be in complete sentences. Answer should at least be 5-7 sentences. (Include the definition of Conservation of Ma

ss, and identify the reactants and products.)
using 5 of the vocabulary words below, write a scientific explanation that describes why the model pictured above does NOT follow the Law of Conservation of Mass.

Vocabulary: Chemical reaction, reactants, products, molecules, atoms, photosynthesis, energy, glucose, water, carbon dioxide, oxygen, matter, mass.

Chemistry
1 answer:
shusha [124]2 years ago
8 0

Answer:

kkkkkkkiuouo 9o                            

Explanation:

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B) <span>It is the instantaneous speed of the bike rider.</span>
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3 years ago
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A small amount wet of hydrogen gas can be prepared by the reaction of zinc with excess hydrochloric acid and trapping the gas pr
dybincka [34]

Answer : The partial pressure of the hydrogen is, 705.9 mmHg

Explanation :

According to the Dalton's law of partial pressure,

P_T=P_{H_2}+P_{H_2O}

where,

P_T = total pressure of the gas = 729.7 mmHg

P_{H_2} = partial pressure of the hydrogen gas = ?

P_{H_2O} = partial pressure of the water = 23.8 mmHg (standard value)

Now put all the given values in the above expression, we get:

729.7mmHg=P_{H_2}+23.8mmHg

P_{H_2}=705.9mmHg

Therefore, the partial pressure of the hydrogen is, 705.9 mmHg

4 0
3 years ago
How many moles are in 1.20 times 10^25 atoms of phosphorus
Stels [109]

19.927 moles are in 1.20 times 10^{25} atoms of phosphorus.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 ×10^{23} of some chemical unit, be it atoms, molecules, ions, or others.

1 mole of any substance contain Avogadro's number of molecules so we can calculate the number of moles by dividing the provided number of atoms over Avogadro's number to obtain the number of moles .

Moles= \frac{Atoms}{\;Avogadro's \;number }

Moles=  1.20 X 10^{25} atoms ÷ 6.022 X 10^{23}

= 19.927

Hence, 19.927 moles are in 1.20 times 10^{25} atoms of phosphorus.

Learn more about moles here:

brainly.com/question/26416088

#SPJ1

5 0
1 year ago
What family has 4 valence electrons?
PilotLPTM [1.2K]

Answer:carbon group

Explanation:

4 0
3 years ago
After creating a definition for what it means to be sexually abstinent, list reasons why being abstinent is important for you an
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Sexually abstinent: refraining from some or all sexual activities
school (higher education)
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