Answer:
Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. ... Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on the water than a piece of wood does
Answer:
1.1 x 10⁴ J
Explanation:
To calculate eth energy needed, you need to use the following equation:
Q = mcΔT
In this equation,
-----> Q = energy/heat (J)
-----> m = mass (g)
-----> c = specific heat (4.184 J/g°C)
-----> ΔT = change in temperature (°C)
You can plug the given values into the equation and solve.
Q = mcΔT
Q = (75.0 g)(4.184 J/g°C)(55.0 °C - 20.0 °C)
Q = (75.0 g)(4.184 J/g°C)(35.0)
Q = 11,000 J
Q = 1.1 x 10⁴ J
answer:
in plants
Transport manufactured food from the leaves to others parts of the plant
Facilitates gaseous exchange through the stomata in the leaves to other parts of the plant
in animal
Exchange of respiratory gases across respiratory services
Excretion of nitrogenous waste in some unicellular organisms
Explanation:
Hope it benefit
Given what we know, we can confirm that when forming an expanded octet, selenium hexafluo
ride will hold 6 pairs of shared electrons around its center selenium atom.
<h3>What is an expanded octet?</h3>
- An expanded octet is when an atom can hold more than 8 valence electrons in its outer shell.
- This is possible for those elements in period four of the periodic table.
- Elements that are capable of this form what we call hypervalent compounds.
Therefore, given that during an expanded octet formation, the central atom is capable of holding more than 8 valence electrons in its outer shell, the central atom of a selenium hexafluo
ride compound will have 12 electrons being shared, which results in 6 pairs, making C the correct answer.
To learn more about valence electrons visit:
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<span>The ions will repel each other. </span>