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Vika [28.1K]
3 years ago
13

Which metals will switch in this single replacement reaction Zn + MgO -->

Chemistry
1 answer:
Sergio039 [100]3 years ago
6 0

Answer:

D

Explanation:

Magnesium is more reactive than zinc so no reaction will take place

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A concentrated acid<span> has a relatively large amount of solute dissolved in the solvent. A </span>dilute acid<span> has a relatively smaller amount of solute dissolved in the solvent. In a solution of a strong </span>acid<span> there would be solvated ions present, but no associated molecules present.</span>
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if during the interaction of 36.5 g of hydrochloric acid with magnesium 137 kg of joules energy are released, how much energy wo
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Explanation:

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3 years ago
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Answer:

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4 0
3 years ago
30.5 g of sodium metal reacts with chlorine gas to produce sodium chloride. How much (in grams) chlorine gas must react with thi
Lena [83]

Answer:

Mass of chlorine = 47.22 g

Explanation:

Given data:

Mass of sodium = 30.5 g

Mass of chlorine= ?

Solution:

Chemical equation:

 2Na + Cl₂      →      2NaCl  

Number of moles of Na:

Number of moles = mass/molar mass

Number of moles = 30.5g/ 23 g/mol

Number of moles = 1.33 mol

Now we will compare the moles of Cl ₂ with Na from balance chemical equation.

                    Na            :              Cl ₂

                     2              :               1

                     1.33          :            1/2×1.33 = 0.665 mol

Mass of chlorine gas:

Mass = number of moles × molar mass

Mass = 0.665 mol × 71 g/mol

Mass = 47.22 g

6 0
3 years ago
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