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scoundrel [369]
2 years ago
13

What element has 2 occupied principals of energy levels

Chemistry
1 answer:
DerKrebs [107]2 years ago
5 0
Helium i believe is the answer
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1.rain pours from the sky
kogti [31]

Answer:

1.Precipitation

2.Transpiration

3.Condensation

4.Evaporation

5.Evaporation

3.Condensation

Explanation:

Rain pours from the sky occurs due to the process of precipitation, leaves of the plant dried due to the process of transpiration in which the water is evaporated from the body of plant, fluffy clouds form in the sky occurs in the process of condensation, bathing suit dries after swim is due to evaporation in which water is removed and goes into the atmosphere and water puddles disappear due to the process of evaporation. Evaporation is the removal of water from the any surface whereas transpiration is the removal of water from plant body parts.

7 0
2 years ago
When 24g of magnesium metal is heated in air, 40g of magnesium oxide is produced. What mass of magnesium would be needed in orde
inysia [295]

Answer: 6.1 g

Explanation:

between Mg and MgO theres a 1;1 MOLE RATIO

here's the balanced equation

2Mg + O2 ==> 2MgO

24g of magnesium is approximately 1 mole of magnesium so it produces 40 g of mgo which is also 1 mole of mgo thus 10/40 =0.25 moles of MgO so 0.25 moles of magnesium would be needed  which is approximately 6.1 g

6 0
2 years ago
Three solutions are mixed together to form a single solution; in the final solution, there are 0.2 mol pb(ch3coo)2, 0.1 mol na2s
RUDIKE [14]

We are given the compounds:

0.2 mol pb(ch3coo)2, 0.1 mol na2s, and 0.1 mol cacl2

Pb will react with both S and Cl to form a solid compound, therefore:

Pb+2 + S-2 ---> PbS(s) <span>
Pb+2 + 2Cl- ---> PbCl2(s) </span><span>

<span>Lead(II) sulfide and Lead(II) chloride will precipitate.</span></span>

8 0
3 years ago
Read 2 more answers
When the pressure of a gas is held constant, if temperature increases then
Tatiana [17]

Answer:

Increases I had this question

7 0
3 years ago
Read 2 more answers
Covelent bonding and molecules compounds
anzhelika [568]

Answer:

Explanation:

These are examples of covalent bonds and covalent compounds. Covalent compounds also are known as molecular compounds. Organic compounds, such as carbohydrates, lipids, proteins, and nucleic acids, are all examples of molecular compounds. You can recognize these compounds because they consist of nonmetals bonded to each other.

4 0
2 years ago
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