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Yakvenalex [24]
3 years ago
8

The table below shows the elements that mainly comprise each of the four layers of Earth:

Chemistry
2 answers:
Leona [35]3 years ago
7 0

Answer:

The answer is oxygen and silicon

Explanation:

I took the test and it was right

Trava [24]3 years ago
3 0

The answer is oxygen and silicon

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Why is there no chemical process that will break down carbon
Jobisdone [24]

There is only a net gain of only two ATP molecules in glycolysis of one six-carbon glucose because it uses the other two to split the glucose.

6 0
3 years ago
Read 2 more answers
What is the full ionic equation for CuCl2 and (NH4)2SO4?
melisa1 [442]

The full ionic chemical balanced equation for CuCl2 and (NH4)2SO4 is 2(NH4)Cl + CuSO4.

Explanation:

The full ionic chemical balanced equation for CuCl2 and (NH4)2SO4 is

CuCl2 + (NH4)2SO4 ⇔ 2(NH4)Cl + CuSO4.

Here the left side one's are reactants i.e.,CuCl2 and (NH4)2SO4.

The right siders are products i.e.,(NH4)Cl and CuSO4.

The complete ionic equation is used to include both chemical species as well as spectator ions. It is used to indicate which of the reactants and products in the equation exists primarily as ions in aqueous solution.

It is nothing but a chemical equation in which electrolytes which are soluble in water are formed as dissociated ions.

The above chemical reaction is double displacement reaction.

3 0
3 years ago
Why does sodium have a lower melting point then magnesium
Lady bird [3.3K]

Answer:

Number of delocalized electrons

Explanation:

Magnesium has more delocalized electrons compared to sodium and this accounts for the higher melting point.

  • When magnesium atoms comes together to form a metallic bonds, they have more network of delocalized electrons.
  • There is more pull for the localized electrons due to the nuclear charge on the nucleus.
  • This strong intermolecular metallic bond increases the melting point of magnesium.
3 0
3 years ago
For a particular reaction, Δ=−111.4 kJ and Δ=−25.0 J/K.
vichka [17]

Answer:

\Delta G =-103.95kJ

Explanation:

Hello there!

In this case, since the thermodynamic definition of the Gibbs free energy for a change process is:

\Delta G =\Delta H-T\Delta S

It is possible to plug in the given H, T and S with consistent units, to obtain the correct G as shown below:

\Delta G =-111.4kJ-(298K)(-25.0\frac{J}{K}*\frac{1kJ}{1000J} )\\\\\Delta G =-103.95kJ

Best regards!

6 0
3 years ago
HELPPPPPPPPPPPP
erica [24]

Answer:

Pressure inside soda can = 5.56 atm

Explanation:

Given data:

Initial volume = 1250 mL

Initial pressure = 1.00 atm

Final volume = 225  mL

Final pressure = ?

Solution:

The given problem will be solved through the Boyle's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

1.00 atm × 1250m L =  P₂ × 225 mL

P₂ =  1250 atm. mL/ 225 mL

P₂ = 5.56 atm

8 0
3 years ago
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