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Lady_Fox [76]
3 years ago
7

ASAP please and Thankyou​​

Chemistry
1 answer:
7nadin3 [17]3 years ago
5 0

Answer:

fugdvbgfshdvhjdgjvd

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Calcium reacts with water. This reaction is represented by the balanced equation below. The aqueous product of this reaction can
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Which particle often described as having very little or no mass since the mass number does not change when you add more and more
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Explanation:

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3 years ago
Silver metal can be prepared by reducing its nitrate, AgNO3 with copper according to the following equation:
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%yield = 88.5%

<h3>Further explanation</h3>

Given

Reaction

Cu(s) + 2 AgNO₃(aq) → Cu(NO₃)₂(aq) + 2Ag(s)

Required

The percent yield

Solution

mol AgNO₃(MW=169,87 g/mol) :

= mass : MW

= 127 : 169.87

= 0.748

mol Ag from equation :

= 2/2 x mol AgNO₃

= 2/2 x 0.748

= 0.748

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= mol x Ar Ag

= 0.748 x 108

= 80.784

% yield = (actual/theoretical) x 100%

%yield = 71.5/80.784 x 100%

<em>%yield = 88.5%</em>

7 0
3 years ago
- How many grams of nitrogen (N2) are needed to react with 435.2 g of oxygen (02) in the following equation?
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I think the answer is this for a better check mass- mass ratio in stoichiometry lesson

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