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Orlov [11]
4 years ago
8

What element has 2 electrons in its outermost energy level and is in the 2nd period on periodic table?

Chemistry
1 answer:
Olegator [25]4 years ago
4 0
Be-beryllium have 2 electrons and it is in the 2 nd period
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Please help me!!!!!!!!!!!!!
fenix001 [56]

1)The limiting reactant will be aluminum acetate

2) The mass of aluminum hydroxide formed will be 9.75 grams.

<h3>Stoichiometric problem</h3>

The equation of the reaction is as below:

Al(C_2H_3O_2)_3 + 3NaOH --- > 3C_2H_3NaO_2 + Al(OH)_3

The mole ratio of the 2 reactants is 1:3.

Mole of 100 mL. 1.25 mol/L Al(C_2H_3O_2)_3 = 0.1 x 1.25 = 0.125 mol

Mole of 300 mL, 2.30 mol/L NaOH = 0.3 x 2.3 = 0.69 mol

Thus, aluminum acetate is limited.

Mole ratio of  Al(C_2H_3O_2)_3 and Al(OH)_3 = 1:1

Equivalent mole of Al(OH)_3 = 0.125 mol

Mass of 0.125 mole Al(OH)_3 = 0.125 x 78 = 9.75 grams.

More on stoichiometric calculations can be found here: brainly.com/question/27287858

#SPJ1

4 0
2 years ago
What are 5 examples of monosaccharides? What is also known as monosaccharide?​
kondaur [170]
1. Fructose
2. Proteins
3. Glucose
4. Ribose
5. Galactose.
This is also called sugar, or carbohydrates.
6 0
2 years ago
How would you balance the following equation NaOh + H2CO3=Na2CO3+H2O ?
mamaluj [8]

Answer: put 2 in front of NaOH and 2 also in front of H2O

Explanation: 2NaOH + H2CO3 —> Na2CO3 + 2H2O

8 0
4 years ago
What is the maximum number of electrons that can be contained in the first, second, third, and fourth energy levels, respectivel
goldenfox [79]
We can find it by 2n^2 formula
So
First shell is maximum of 2
Second shell is of 8
Third shell is of 18
Fourth shell is of 32
8 0
4 years ago
Any of the blanks you can answer please answer them!!!!! Due tomorrow
yKpoI14uk [10]
Gravity depends on inertia

7 0
4 years ago
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