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Sloan [31]
3 years ago
9

5. Which of these elements has the greatest atomic radius? * Be Mg Ra Ba

Chemistry
1 answer:
trapecia [35]3 years ago
5 0
The answer is Ra
Atomic number for Be is 4

Atomic number for Mg 12

Atomic number for Ra 88

Atomic number for Ba 56
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If 211 mL of water is added to 5.00 mL of 3.24 M NaCl solution,
Softa [21]

Answer:

0.075M

Explanation:

-The concentration of a solution is defined as the mass of the solute divided by the volume of the solution:

Concentration=\frac{Mass \ Solute}{Volume \ of \ Solution}

-We the solve the molarity problem as follows:

M_1V_1=M_2V_2\\\\V_2=V_1+211=211+5=216mL\\\\\therefore M_2=\frac{M_1V_1}{V_2}\\\\=\frac{3.24\times 5}{216}\\\\\\=0.075\ M

Hence, the concentration of the dilute solution is 0.075M

6 0
4 years ago
what is the molecular formula of the molecule thay has an empirical formula of CH20and a molar mass of 240.2 g/mol?​
worty [1.4K]

C8H16O8

Explanation:

(CH2O)n=240.2

=12n+2n+16n=240.2

=30n=240.2

n=8

C8H16O8

4 0
3 years ago
A 1.0 L sample of an aqueous solution contains 0.10 mol of NaCl and 0.10 mol of CaCl2. What is the minimum number of moles of Ag
Annette [7]

Answer:

The answer to your question is: 0.3 moles of AgNO₃

Explanation:

1.0 L sample

0.1 mol of NaCl

0.1 mol of CaCl₂

AgNO₃ = ? moles

Reactions

               NaCl + AgNO₃ ⇒ AgCl + NaNO₃

Then                1 NaCl mol ---------------  1 AgNO₃

                     0.1 mol           --------------    x

             x = 0.1 moles of AgNO₃ needed

             

              CaCl₂ + 2 AgNO₃ ⇒ 2 AgCl + Ca(NO₃)₂

Then                 1 mol of CaCl₂ ------------- 2 moles of AgNO₃

                       0.1 mol              -------------      x

            x = 0.2 moles of AgNO₃

Total moles of AgNO₃ = 0.1 + 0.2 = 0.3

5 0
3 years ago
Determine what the spin state of each complex will be using the spectrochemical series along with your chemical intuition. Pleas
seropon [69]

Answer:

A) high spin complex

B) low spin complex

Explanation:

A) VCI3(H20)3 is a high spin complex and this is because the complex has a weak field ligands all . this weak field ligands makes it impossible for pairing to take place

B) Fe(NH3)23 is a low spin complex and this is because the complex is made up of strong field ligands, this strong field ligands makes it possible for paring to take place

note : Ligands in which its donor atoms are ; Nitrogen,phosphorous or carbon are considered strong ligands

3 0
3 years ago
What are the advantages of using Fahrenheit ?
Effectus [21]

Answer:

You can better relate to the air temperature.

Explanation:

Fahrenheit gives you almost double the precision of Celsius without having to use decimals.

5 0
3 years ago
Read 2 more answers
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