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Lina20 [59]
3 years ago
12

Plate movement is thought to be the result of what ​

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
7 0

Answer: Plate movement is thought to be driven by a combination of the motion of the seafloor away from spreading ridges due to variations in topography and density changes in the crust.

Hope this helps

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The table shows the thermodynamic data for a reaction. Thermodynamic Data Energy of the Reactants Energy of the Products Activat
NNADVOKAT [17]

Answer:

The change in enthalpy is +210 kJ, so it is an endothermic reaction.

Explanation:

  • The change in enthalpy shows that the reaction is exothermic or endothermic.

The change in enthalpy = The energy of products - the energy of reactants.

  • If ΔH is positive value, the reaction is endothermic, the energy of the products is higher than that of the reactants.
  • If ΔH is negative value, the reaction is exothermic, the energy of the products is lower than that of the reactants.

<em>For this reaction: </em>The change in enthalpy = The energy of products - the energy of reactants = 370 kJ - 160 kJ = + 210 kJ.

<em>So, the right choice is: The change in enthalpy is +210 kJ, so it is an endothermic reaction.</em>

7 0
3 years ago
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Why does an atom of 23NA have 23 electrons
Julli [10]
It is actually something standardized more so than theoretical,  however in terms of atoms in general the electrons are based on the amount of  electronic shells that an atom has and the amount of electrons that atom can accommodate.  In the case of sodium, it has three shells with 2 electrons on the first shell which is the maximum, 8 on the second shell which is also the max and 1 on their final shell
So simply put an ATOM of Sodium (Na) has 23 electrons because it has 23 protons which is a fact
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7 0
3 years ago
Plz download the doc and answer its due in 20 mins like bro wth
4vir4ik [10]

Answer:

and how do we know this is not a virus

Explanation:

sorry dude im just saying

4 0
2 years ago
Read 2 more answers
The allotropic form of a non – metal is a good conductor of electricity. Name the nonmetal.
SashulF [63]

Answer:

carbon with graphite as the allotrope

8 0
2 years ago
If a chemical reaction goes to completion, what can we say about the equilibrium constant for that reaction?
aniked [119]

Answer:

A. The equilibrium constant is very large

Explanation:

The equilibrium constant value is the ratio of the concentrations of the products over the reactants. When a chemical reaction goes to completion, that means that all the reactant has turned into products. As the equilibrium constant defines, it is the ratio of the product to the reactant. So at the final stage of the chemical reaction, the equilibrium constant will be very large.

7 0
3 years ago
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