3 years ago

12.8g of zinc reacts with hydrochloric acid. what mass of hydrochloric acid is produced

1 answer:

6 0

I think my sister had this test before and she is helping me with answering brainly kids but she and i think it is

48.6 g

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In a exothermic reaction, is heat transfered to or from the surrounding

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In an exothermic reaction, heat is transferred to the surrounding.

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Now molecules: ____ molecules of H2 + ____ molecules of O2 → ____molecules of H2O

Valentin [98]

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3 years ago

Which of the following equations can be used to determine the change in enthalpy of a system? A. `DeltaH_"reaction"=DeltaH_"prod

Nostrana [21]

Answer: The correct answer is Option D.

Explanation:

Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as $\Delta H^o$

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$\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f_{(product)}]-\sum [n\times \Delta H^o_f_{(reactant)}]$

Hence, the correct answer is Option D.

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3 years ago

How many formula units are in 35.0 g KNO3? (KNO3, 101.11 g/mol) [?]×10¹²] fun KNO3

alina1380 [7]

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2 years ago

What is the mass of KNO3 should be used to prepare 2.00 L of a 0.700 M solution?

Dmitry [639]

Answer:

141.4g

Explanation:

Moles= conc. ×vol

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