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3 years ago

Marina is creating a flow chart of the mechanics of mantle convection and how it relates to tectonic plate movement.

Chemistry

2 answers:

Svetradugi [14.3K]3 years ago

5 0

Answer:

answer is A.

Explanation:

your welcone

mamaluj [8]3 years ago

3 0

The correct word sequence in the given flow chart will be

A.) asthenosphere, ridge push, subduct

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As an object falls freely near the earths surface , the loss in gravitational potential energy of the object is equal to its wha

Nitella [24]

Increase in kinetic energy as well as energy loss to the surroundings in the form of heat ( negligible)

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2 years ago

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How many moles of helium atoms are there in

fredd [130]

a is the correct answer .

2.4 × 10^24

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2 years ago

g If 50.0 mL of a 0.75 M acetic acid solution is titrated with 1.0 M sodium hydroxide, what is the pH after 10.0 mL of NaOH have

V125BC [204]

Answer:

pH = 2.66

Explanation:

Acetic Acid + NaOH → Sodium Acetate + H₂O

First we calculate the number of moles of each reactant, using the given volumes and concentrations:

0.75 M Acetic acid * 50.0 mL = 37.5 mmol acetic acid

1.0 M NaOH * 10.0 mL = 10 mmol NaOH

We calculate how many acetic acid moles remain after the reaction:

37.5 mmol - 10 mmol = 27.5 mmol acetic acid

We now calculate the molar concentration of acetic acid after the reaction:

27.5 mmol / (50.0 mL + 10.0 mL) = 0.458 M

Then we calculate [H⁺], using the following formula for weak acid solutions:

[H⁺] = $\sqrt{C*Ka}=\sqrt{0.458M*1.76x10^{-5}}$

[H⁺] = 0.0028

Finally we calculate the pH:

pH = -log[H⁺]

pH = 2.66

8 0

2 years ago

Water vapor changing to liquid water

kiruha [24]

Explanation:

When water vapour changes to liquid water then this process is known as condensation.

For example, when lid is placed in a hot water filled pan then after sometime vapours appear on the surface of lid. When temperature of water decreases then water vapours convert into liquid form.

Thus, we can conclude that in condensation water vapor changes to liquid water.

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2 years ago

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In what organelle does photosynthesis occur

Fofino [41]

Answer:

chloroplasts

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

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2 years ago