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olga2289 [7]
2 years ago
8

12) SEP Use Mathematics Complete the table by identifying the atomic number and

Chemistry
1 answer:
Lina20 [59]2 years ago
7 0

Answer:

{^{11}_{23}}Na \\atomic \: number \:  Z = 11 \\ mass \: number = 23 \\ number \: of \: protons =  \: 11 \\ number \: of \: neutrons \:  = 12 \\  number \: of \: electrons \:  = 11 \\ mass \: number \:  - atomic \: number \:  =  \\  {p}^{ + }  =  {e}^{ - }

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Some fats are called "saturated" fats because __________. Select one: a. their carbon skeleton is bent to form four fused rings
marin [14]

Answer:

All carbons in the carbon skeleton contain the maximum number of hydrogen atoms

Explanation:

Saturated fats are class of compounds having all the fatty acids containing only single bonds. In other words, carbon skeleton has only single bonds.

Unsaturated compounds undergoes hydrogenation to form saturated fats.

In hydrogenation, hydrogen atoms are added to the carbon attached to double bond. After become saturated, no more hydrogen atoms can be added.

Therefore, it can be said that in saturated fats all carbons in the carbon skeleton contain the maximum number of hydrogen atoms.

6 0
3 years ago
Which of the elements must be available in water for the metamorphosis of tadpoles?
Grace [21]
The element iodine (I) is important for the fast and hastened metamorphosis of frog-tadpoles. As amphibians, the tadpoles can live in water and land but when they are born they are iodine-deficient. Tadpoles that do not receive ample amount of iodine become tadpoles until the end of their days. 

8 0
3 years ago
In the presence of a base, blue litmus paper will .<br>O turn purple<br>stay blue<br>to turn red​
Inessa05 [86]

Answer:

In the presence of a base, blue litmus paper will turn red........

7 0
3 years ago
Read 2 more answers
Can you please help me?
lorasvet [3.4K]

Answer:

60 moles of NaF

Explanation:

The balanced equation for the reaction is given below:

Al(NO3)3 + 3NaF —> 3NaNO3 + AlF3

From the balanced equation above,

3 moles of NaF reacted to produce 1 mole of AlF3.

Therefore, Xmol of NaF will react to produce 20 moles of AlF3 i.e

Xmol of NaF = 3 x 20

Xmol of NaF = 60 moles

Therefore, 60 moles of NaF are required to produce 20 moles of AlF3.

4 0
2 years ago
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katrin2010 [14]

O2 is the right answer                      

4 0
3 years ago
Read 2 more answers
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