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miv72 [106K]
3 years ago
12

What could account for less than 100 percent yield of co2 from your chemical reaction?

Chemistry
2 answers:
liq [111]3 years ago
8 0

Answer:The copper chloride did not fully dissolve in water before performing the reaction.

The mass of the copper was not measured with the same accuracy.

Not all of the copper was collected in the filter.

Not enough time was allowed for all of the aluminum to react.

There were impurities in the aluminum.

Wittaler [7]3 years ago
5 0

Answer:

all of them

Explanation: on edge

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plssss help me !! Liquid water can be separated into hydrogen gas and oxygen gas through electrolysis. 1 mole of hydrogen gas an
Fantom [35]

Answer:

I'm not sure but all I can find is this for you :)

The temperature of the oxygen gas is  243.75 K.

Using ideal gas law to explain the answer, the absolute temperature of the gas will decrease if the number of moles of the gas increases and it will increase if the volume and/or pressure of the gas increases.

4 0
3 years ago
2H2O + 2K (s) → 2KOH (1) + 2H2 (g) is an example of which type of reaction?
AlexFokin [52]
Its a single Displacement reaction
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Question 6 pls I need help this is due in 2 minutes!!..
MAVERICK [17]

Answer:

c

Explanation:

7 0
3 years ago
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The following reaction shows calcium chloride reacting with silver nitrate.
adell [148]

Grams of Ca(NO₃)₂ produced : 0.985 g

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

CaCl₂ + 2AgNO₃ → 2AgCl + Ca(NO₃)₂

MW AgNO₃ : 107.9+14+3.16=169.9

mol AgNO₃ :

\tt \dfrac{2}{169.9}=0.012

mol ratio Ca(NO₃)₂ : AgNO₃ = 1 : 2, so mol Ca(NO₃)₂ :

\tt \dfrac{1}{2}\times 0.012=0.006

MW Ca(NO₃)₂ : 40.1+2.14+6.16=164.1 g/mol

mass Ca(NO₃)₂ :

\tt 0.006\times 164.1=0.985

7 0
3 years ago
On the periodic table how many periods are there and how many columns are there
mestny [16]
There are seven periods with eighteen columns in the periodic table.
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