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Viefleur [7K]
2 years ago
13

Mg + 2AgNO3 -> 2Ag + Mg(NO3)2

Chemistry
1 answer:
9966 [12]2 years ago
5 0

Answer:

Explanation:

We'll assume there is an excess of silver nitrate, so that all 12.0 moles of the magnesium (Mg) will react.

The balanced equation tells us we'll obtain 2 moles of Ag for every 1 mole of magnesium, for a molar ratio of 2/1.

Starting with 12.00 moles Mg, we would therefore hope to find twice that, or 24.00 moles of Ag.

To convert to grams, find the molar mass of Ag from the periodic table.

Ag has a molar mass of 107.9 (to 4 sig figs) grams/mole.

(24.00 moles)*(107.9 grams/mole) = 2590 grams (4 sig figs)

Hands off, it's mine.

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If 500 mL of liquid mercury weighs 6.53 kg, what is the mass in pounds? A) 1.44 lb B) 2960 lb C ) 14.4 lb D) 7.19 lb E) 2.96 lb
soldi70 [24.7K]

Answer:

The correct option is: C ) 14.4 lb      

Explanation:

The standard International unit of mass is kilogram, kg. Other commonly used units of mass are grams (g), tonne (t), pounds (lb).

The mass of 500 mL liquid mercury is 6.53 kg.

Since, 1 kg = 2.20462 lb ≈ 2.205 lb

Therefore, the mass of 500 mL liquid mercury in pounds = 6.53 × 2.20462 = 14.39619 lb ≈ 14.4 lb.  

8 0
2 years ago
answer yes if the substance becomes part of the filtrate or answer no if the molecule does not become part of the filtrate
SVETLANKA909090 [29]

Yes, the substance becomes the part of filtrate. No, the molecule does not become part of the filtrate.

<h2>What is filtrate?</h2>

The most common example is making tea. While preparing tea, a filter or a sieve is used to separate tea leaves from the water. Through the sieve pores, only water will pass. The liquid which has obtained after filtration is called the filtrate; in this case, water is the filtrate.

<h3>Which substance becomes the part of the filtrate?</h3>

The substances that are normally found in the filtrate  are plasma components (such as water, nutrients, dissolved gases, electrolytes, and metabolic wastes) excluding plasma proteins and blood cells.

<h3>Why molecule becomes the part of the filtrate?</h3>

Proteins are large molecules that cannot pass the wall of capillaries during  filtration, hence, this molecule is not normally part of the  filtrate.

Know more about filtrate visit the link

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4 0
1 year ago
Which statement is a description of a chemical reaction?
zzz [600]
An explosion is the only chemical reaction here- it would completely change the substance whereas with the others- every substance has a solid liquid and gas form so they would still be the same substance
7 0
2 years ago
If an object is getting colder, it is...
nignag [31]

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if an object is getting colder it is loosing thermal energy

4 0
2 years ago
Read 2 more answers
Please answer asap need by Wednesday morning
Nina [5.8K]

Answer:

5.555.

Explanation:

∵ pH = - log[H⁺],

<em>[H⁺] for weak acids = √Ka.C.</em>

Ka for CH₃COOH = 1.74 x 10⁻⁵, C = 0.16 M.

∴ [H⁺] = √Ka.C = √(1.74 x 10⁻⁵)(0.16 M) = 2.784 x 10⁻⁶ M.

∴ pH = - log[H⁺] = - log(2.784 x 10⁻⁶ M) = 5.555.

3 0
2 years ago
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