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Papessa [141]
3 years ago
15

How many individual atoms are represented in the reactants of the equation shown below?

Chemistry
1 answer:
Soloha48 [4]3 years ago
6 0

Answer:

There are 8 hydrogen atoms on the product side in the reaction.

Explanation:

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How many mole of ZnCl2 will be produced from 55.0 g of Zn, assuming HCL is available in excess
Ilia_Sergeevich [38]

Answer:

0.84 mol

Explanation:

Given data:

Moles  of ZnCl₂ produced = ?

Mass of Zn = 55.0 g

Solution:

Chemical equation:

2HCl + Zn  →  ZnCl₂ + H₂

Number of moles of Zn:

Number of moles = mass / molar mass

Number of moles = 55.0 g/ 65.38 g/mol

Number of moles = 0.84 mol

Now we will compare the moles of Zn with ZnCl₂ from balance chemical equation.

                                      Zn          :             ZnCl₂

                                         1          :               1

                                      0.84       :           0.84

So from 55 g of Zn 0.84 moles of zinc chloride will be produced.

8 0
3 years ago
C3H8 + 5O2 → 3CO2 + 4H2O
trasher [3.6K]

Answer:

16.5moles of CO2

Explanation:

Molar mass of O2 is 32g/Mol

No of mole = 880/32 = 27.5 moles

27.5 Mol of O2 gives X mole of CO2

5 mole of O2 gives 3 moles of CO2

No of mole of CO2 = (27.5×3)/ 5 = 16.5moles

7 0
3 years ago
30 POINTS PLEASE HELP ASAP
lina2011 [118]

Hello!

We have the following data:

f (radiation frequency) = 3.0*10^{19}\:Hz

v (speed of light) = 3.0*10^8\:m/s

λ (wavelength) = ? (in m)

Let's find the wavelength, let's see:

f = \dfrac{v}{\lambda}

3.0*10^{19} = \dfrac{3.0*10^8}{\lambda}

\lambda = \dfrac{3.0*10^8}{3.0*10^{19}}

\boxed{\boxed{\lambda = 1*10^{-11}\:m}}\Longleftarrow(wavelenght)\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

4 0
3 years ago
In which period would you find Mercury?
Mamont248 [21]

Answer:

period 6

Explanation:

3 0
2 years ago
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In ___, citizens are Constitutionally allowed to vote for their political leaders. However, the ruling party of that country has
Vlad1618 [11]
This happens in China.

Citizens of China are once constitutionally allowed to vote for their political leaders. China was once a sovereign state called People's Republic of China or PRC. It ended when it was replaced to a one-state party governed by the communist when the civil war ended in 1949.
8 0
3 years ago
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