3 years ago

Is exposure to oxygen a type of mechanical weathering

1 answer:

6 0

Weathering is the name given to the process of breaking-down rocks at Earth's surface. This is accomplished due to the exposure to oxygen through the process of oxidation and to the exposure to water in its various forms (liquid, solid, & gas). ... Water is the primary agent for mechanical weathering.

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ivann1987 [24]

Answer:

Direct current!

Explanation:

Process of elimination, it isn't A, it isn't C, and it definitely isn't D

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4 years ago

List three evidences of physical and chemical change. ( If you know only one or two please write them anyways please)

LenaWriter [7]

Physical: ripping paper, braking a stick, cake batter mixing

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fgiga [73]

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3 years ago

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Definition: This is a change in velocity per time.

ladessa [460]

Answer: acceleration

a = 5.36 m/s²

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3 years ago

Determine the number of milliliters of 0.00300 M phosphoric acid required to neutralize 40.00 mL of 0.00150 M calcium hydroxide.

a_sh-v [17]

The volume of H₃PO₄ : 13.33 ml

<h3>Further explanation</h3>

Given

0.003 M Phosphoric acid-H₃PO₄

40 ml of 0.00150 M Calcium hydroxide-Ca(OH)₂

Required

Volume of H₃PO₄

Solution

Acid-base titration formula

Ma. Va. na = Mb. Vb. nb

Ma, Mb = acid base concentration

Va, Vb = acid base volume

na, nb = acid base valence (amount of H⁺/OH⁻)

H₃PO₄⇒3H⁺ + PO₄³⁻ ⇒ 3 H⁺ = valence = 3

Ca(OH)₂⇒Ca²⁺ + 2OH⁻⇒ 2 OH⁻ = valence = 2

Input the value :

a = H₃PO₄, b = Ca(OH)₂

0.003 x Va x 3 = 0.0015 x 40 x 2

Va = 13.33 ml

8 0

3 years ago