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Phantasy [73]
3 years ago
10

PLEASE HELP

Chemistry
1 answer:
DaniilM [7]3 years ago
4 0

Answer:

the second one is it.

Explanation:

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Какая масса хлора и какое количество вещества необходимо для реакции с 12г магния при получении хлорида магния?
Naddika [18.5K]
Mg + Cl₂ = MgCl₂M(Mg) = 24г/моль  m 1 моль Mg = 24 г.По условию задачи дано 12г. Mg  Количество вещества n(Mg) =12÷24=0,5 мольРассуждаем: по уравнению реакции  с 1 моль магния реагирует 1 моль хлора, следовательно с 0,5 моль будет реагировать 0,5 моль хлора.1 моль хлора при н.у. занимает объем 22,4л. , тогда 0,5 моль хлора займет:0,5х22,4л.= 11,2л. Ответ: Для взаимодействии 12 г.  магния потребуется 11,2 л. хлора.
7 0
3 years ago
What is the percent by mass of a solution containing 4. 0g of solute in 100g of water? (Percent by mass formula: (mass of solute
Hoochie [10]
B
mass of solute - 4.0 g
mass of solution - 100g + 4.0g = 104g
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5 0
2 years ago
Calculate the molar mass of H2SO4 + 2 NaOH = Na2SO4 + 2 H2O. Please show all work. THANK YOU!
mr_godi [17]

Answer:

<em><u>30.11x1</u></em><em><u>0</u></em><em><u>²</u></em><em><u>³</u></em>

Explanation;

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Which object will have particles with the highest average kinetic energy?
Eddi Din [679]

Answer:

Explanation:

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