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yarga [219]
3 years ago
10

What 2 things have to increase for metamorphisim to occur

Chemistry
2 answers:
Flauer [41]3 years ago
8 0
For metamorphism of rock to occur, temperature and pressure must increase. Rocks created in this manner are called metamorphic rocks.
Semmy [17]3 years ago
7 0
Temperature and
Pressure have to increase
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Carbon dioxide is a nonpolar molecule true of false
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This statement is TRUE.

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The CO2 has a linear, symmetrical structure. This means that the two oxygen atoms with greater electronegativity are symmetrically placed around the carbon molecule. This arrangement of atoms causes a balance in the sharing of the electrons, making the molecule non polar.
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Plz help asap<br> for Edmentum/plato
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Answer:

A. Gas atoms subjected to electricity emit bright lines of light

Explanation:

When subjected to electricity, the electrons of a gas atom are <em>excited</em>. From that excited energy level, the electrons eventually go back to their initial state; this <u>transition</u> is done by emitting photons at a specific wavelength (causing an emission of bright lines of light).

Such is the mechanism of gas-discharge lamps tipically found in households.

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Why should we try to use less oil, natural gas and electricity?
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The ph of the equivalence point of a weak acid–strong base titration is _________.
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Copper reacts with silver nitrate through single replacement.
-Dominant- [34]

Answer:

  • Part a) 0.0104 moles copper(II) nitrate.

  • Part b)

            i) 0.0418 mole Cu

            ii) 0.0209 mol Ag NO₃

Explanation:

<u>1) Balanced chemical reaction (single replacement):</u>

In a single replacement reaction a more acitve metal (Cu) replaces a less active metal (Ag)

  • Cu + 2 Ag NO₃ → Cu (NO₃)₂ + 2 Ag

<u>2) Mole ratio: </u>

  • 1 mole Cu : 2 mole Ag NO₃ : 2 mole Ag

<u />

<u>3) Moles of Ag</u>

  • n = mass in grams / atomic mass
  • atomic mass of Ag: 107.868 g/mol
  • n = 2.25 g / 107.868 g/mol = 0.0209 mol Ag

<u>4) Moles of copper(II) nitrate:</u>

  • Set the proportion using the mole ratio:
  • 2 mole Ag / 1 mole Cu (NO₃)₂ = 0.0209 mole Ag / x
  • Solve: x = 0.0209 / 2 mole Cu (NO₃)₂ =  0.0104 moles Cu(NO₃)₂

That is the answer of part a: 0.0104 moles copper(II) nitrate.

<u>5) Moles of each reactant</u>

i) Cu:

  • Set a proportion using the theoretical mole ratio

        1 mole Cu / 2 mole Ag = x / 0.0209 mol Ag

  • Solve for x: x = 0.0209 / 2 mole Cu = 0.0418 mole Cu

ii) Ag NO₃

  • Set a proportion using the teoretical mole ratio

   

       2 mole Ag NO₃ / 2 mole Ag = x / 0.0209 mole Ag

  • Solve for x: x = 0.0209 mol Ag NO₃
6 0
3 years ago
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