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Orlov [11]
3 years ago
13

What is the predicted electron configuration of Helium

Chemistry
1 answer:
Crank3 years ago
6 0

1s²

Explanation:

The predicted electron configuration of Helium 1s².

Helium is an element with atomic number of 2. it is located on the last group on the periodic table.

  • Electron distribution into the energy levels or sublevels of atoms can be shown using electronic configurations.

Here, the two electrons in Helium fills the first energy level with s-sublevel first.

The maximum number of electrons in the sub-level is 2: this gives the 1s² configuration.

Learn more:

Electronic configuration brainly.com/question/6312987

#learnwithBrainly

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Which explains why carbon is a component of so many elements?
murzikaleks [220]
Carbon is a component of so many elements because <span>It can form stable compounds with other elements and also bond with them.</span>
5 0
3 years ago
If the solubility of sugar at 25ºC is 211 g/100 g H2O, what mass of sugar can be dissolved in 300 g of H2O?
ladessa [460]

Answer:

633 grams of sugar can be dissolved in 300 g of H₂O

Explanation:

Solubility is the measure of the ability of a certain substance to dissolve in another and form a homogeneous system.  Solubility is then the maximum amount of a solute that a solvent can receive and is expressed by concentration units.

The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them. That is, what is intended with it is to find the fourth term of a proportion knowing the other three. Remember that proportionality is a constant relationship or ratio between different magnitudes.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other) , the direct rule of three must be applied. To solve a direct rule of three, the following formula must be followed:

a ⇒ b

c ⇒ x

Then:

x=\frac{c*b}{a}

You can apply the rule of three as follows: if by definition of solubility in 100 grams of H₂O there are 211 grams of sugar, in 300 g of H₂O how much sugar is there?

sugar=\frac{300 grams of H_{2}O *211 grams of sugar}{100 grams of H_{2}O}

sugar= 633 grams

<u><em>633 grams of sugar can be dissolved in 300 g of H₂O</em></u>

7 0
2 years ago
Read 2 more answers
What would cause the equilibrium to shift left in this reaction? CO + 3H2 ? CH4 + H2O A. Adding heat to the product mixture B. A
Irina-Kira [14]

Answer:

Pretty sure the answer is A on Plato

Explanation:

I looked it up, and it said that raising the temperature would cause the equilibrium to shift left.

8 0
2 years ago
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If the actual yielsd of a reaction is 50 g and the theoretical yield is 60 g. What is the percent yield.
balandron [24]
M₁=50 g
m₀=60 g

w=100m₁/m₀

w=100*50/60=83.3%
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3 years ago
Designed to be a measure of the amount of energy released by an earthquake
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The answer is the moment magnitude scale
5 0
3 years ago
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