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AveGali [126]
4 years ago
10

Which element would have properties characteristic of both a metal and a nonmetal

Chemistry
1 answer:
PolarNik [594]4 years ago
7 0

Answer:

Examples: Si, B, Ge, Sb, Ga

Explanation:

The majority of elements in the periodic table are classified as either a metal (a species that can lose electrons to become a cation) or a non-metal (a species that can gain electrons to become an anion).

However, there are several atoms which are considered to be metalloids. Metalloids are elements which possess properties that resemble both metals and non-metals. Examples of metalloids would be: silicon (Si), boron (B), germanium (Ge), antimony (Sb), gallium (Ga).

Since metalloids have properties of both metals and non-metals, they are widely used in semiconductors, as they might both donate and accept electrons in their shells.

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6 0
3 years ago
How many moles in .5g of sodium bromide?
Genrish500 [490]
I'm not sure how many sign fig's you are required to have.
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6 0
3 years ago
At what temperature is the volume of the gas 4.00 L if the pressure is kept constant.
marta [7]

Its B

Explanation:

Thats should help you out

3 0
3 years ago
The plot shows the absorbance spectra for solutions of caffeine, benzoic acid, and Mountain Dew® soda, each in 0.010 M HCl . A p
Aliun [14]

Complete Question

The diagram of the complete question is shown on the first uploaded image.

Answer:

a) The approximate absorbance of benzoic acid at 228 nm? : A = 0.8

b) The molar absorptivity(∈)

of benzoic acid at 228 nm? : ∈   =  1.12 * 10^{4} M^{-1} cm^{-1}

Explanation:

Looking at the absorbance spectra, we can see that the approximate absorbance of benzoic acid at 228 is 0.8.

mass concentration of benzoic acid = 8.74 \frac{mg}{L} =8.74 * 10^{-3} \frac{g}{L}

the molar concentration of benzoic acid = (mass concentration of benzoic acid) / (molar mass of benzoic acid )

 

molar concentration of benzoic acid = (8.74 *10^{-3} \frac{g}{L} ) /(122.12\frac{g}{mol} )

molar concentration of benzoic acid = 7.157 * 10^{-5}M

molar absorptivity (∈) of benzoic acid = (absorbance) /[ (molar concentration of benzoic acid ) × (path length) ]

 

 ∈    = (0.8) / [ (7.157 *10^{-5}M) ×(1.00 cm)]

        =  1.12 * 10^{4} M^{-1} cm^{-1}

     

5 0
3 years ago
What volume (in L) of oxygen will be required to produce 77.4 L of water vapor in the reaction below?
Nostrana [21]

Answer:

For the production of 77.4 L water 90.3 L oxygen is required.

Explanation:

Given data:

Volume of oxygen required = ?

Volume of water produced = 77.4 L

Solution:

Chemical reaction equation:

2C₂H₆ + 7O₂  →  4CO₂ + 6H₂O

1 mole = 22.414 L

There are 6 moles of water = 6×22.414 = 134.5 L

There are 7 moles of oxygen = 7×22.414 = 156.9 L

Now we will compare the litters of water and oxygen:

                              H₂O           :              O₂    

                              134.5         :              156.9

                                77.4         :             156.9/134.5×77.4 =90.3 L

So for the production of 77.4 L water 90.3 L oxygen is required.

8 0
3 years ago
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