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sergey [27]
3 years ago
15

Compounds have the same properties as the elements they are made up of. Is it true or false

Chemistry
1 answer:
hodyreva [135]3 years ago
6 0
( False ) this the answer
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A sample of gas has an initial volume of 3.88 l at a pressure of 707 mmhg . part a if the volume of the gas is increased to 5.43
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Using boyles law
p1v1=p2v2
v1=3.88
v2=5.43
p1=707
p2=?
707x3.88=p2x5.43
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4 years ago
The properties of two elements are listed below. Which prediction is supported by the information in the table?
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K will give up an electron more easily than Br.
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Soda is a mixture. The ingredients list for a can of soda is given below.
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Answer: Compounds

Explanation:

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3 years ago
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A new grill has a mass of 30.0 kg. you put 1.5 kg of charcoal in the grill. you burn all the charcoal and the grill has a mass o
atroni [7]

The reaction for burning of charcoal or complete combustion is as follows:

C(s)+O_{2}(g)\rightarrow CO_{2}(g)

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Converting mass of charcoal into moles as follows:

n=\frac{m}{M}

Molar mass of pure carbon is 12 g/mol thus,

n=\frac{1.5\times 10^{3} g}{12 g/mol}=125mol

The same moles of CO_{2} is released. Converting these moles into mass as follows:

m=n×M

Molar mass of CO_{2} is 44 g/mol thus,

m=125mol\times 44 g/mol=5.5\times 10^{3}g

Converting mass into kg,

1g=10^{-3}kg

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How many moles of HCl are present in 1.30 L of a 0.50 M solution
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0.65moles of HCl was produced

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