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lisabon 2012 [21]
4 years ago
9

Which of the following has the largest radius?

Chemistry
1 answer:
frosja888 [35]4 years ago
4 0
I believe it is E because Cesium has the most electrons, protons, and neutrons.
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Bromine has a density of 3.10g/cm3. If you have 50.0 ML of bromine, how many grams do you have?
Zanzabum

Answer:

The answer is

<h2>155 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of bromine = 50 mL

density = 3.10 g/cm³

It's mass is

mass = 50 × 3.10

We have the final answer as

<h3>155 g</h3>

Hope this<u> </u>helps you

5 0
3 years ago
Read 2 more answers
Name the following Ionic Compound:<br><br> Fe2O3<br><br> (I believe this is Iron (III) Oxide)
svet-max [94.6K]

It is Iron 2 (Fe2) and Oxygen 3 (O3). Hope this helps!

4 0
4 years ago
Read 2 more answers
Which of the following contains an atom that does not obey the octet rule? BrF3 SiO2 NaCl BrF
mrs_skeptik [129]

The octet rule signifies towards the capability of the atoms to prefer to exhibit eight electrons in the valence shell. In case, when the atoms possess lesser than eight electrons, they seem to react and produce more stable components. While discussing octet rule, one does not consider d or f electrons.  

According to the octet rule, the atoms of the prime-group elements seem to bind in such a manner that each atom exhibit eight electrons in its valence shell, providing it the similar electronic configuration as a noble gas.  

In the given question, in BrF3, fluorine follows octet rule, while bromine does not follow the octet rule.  


5 0
3 years ago
Read 2 more answers
Potassium hydroxide is very soluble in water, resulting in extremely basic solutions. A 121g sample KOH is dissolved in water at
nataly862011 [7]

Answer:

15.33

Explanation:

Given parameters:

Mass of KOH = 121g

Volume of solution  = 100mL   = 0.1dm³

Molar mass of KOH  = 56.11g/mol

Unknown:

pH  of the solution = ?

Solution:

To find the pH, we must first know the concentration of the solution obtained by mixing KOH up to this volume.

This can be done by finding the molarity of the solution.

  Molarity  = \frac{number of moles }{volume of solution}

  Number of moles of KOH  = \frac{mass}{molar mass}    = \frac{121}{56.11}   = 2.16mole

Input parameters;

 Molarity of solution = \frac{2.16}{0.1}   = 21.6moldm⁻³

       KOH    →    OH⁻   +          K⁺

       21.6           21.6              21.6

In the solution we have 21.6moldm⁻³ of OH⁻ which is need to find the pH;

          pOH  = -log₁₀(OH⁻)

         pOH  =  -log₁₀21.6

          pOH  = -1.33

Since pH + pOH   = 14

          pH  = 14 - (-1.33)  = 15.33

3 0
4 years ago
Which of the following correctly orders the types of radiation from the LONGEST wavelength to the SHORTEST wavelength?
gulaghasi [49]

Answer:

For the wavelenth of light spectrum, I believe the order would be red visible light, infrared, microwaves and radio waves.

5 0
3 years ago
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