Answer:
8.34e23 electrons
Explanation:
One atom o 13C has 6 electrons, 6 protons, and 7 neutrons
so 1.39e23 13C atoms will have 1.39e23 x 6 = 8.34e23
Explanation:
According to Clausius-Claperyon equation,
The given data is as follows.
= (63.5 + 273) K
= 336.6 K
= (78 + 273) K
= 351 K
= 1 atm, = ?
Putting the given values into the above equation as follows.
=
=
= 3813.1 J/mol
Thus, we can conclude that the heat of vaporization of ethanol is 3813.1 J/mol.
The granite loses 1.53 × 10⁸ J of heat.
The formula for the heat (<em>q</em>) transferred is
<em>q = mC</em>Δ<em>T
</em>
I shall assume that the specific heat capacity of granite is 0.790 J·°C⁻¹g⁻¹.
<em>m</em> = 3.580 × 10⁶ g; Δ<em>T</em> = <em>T</em>_f – <em>T</em>_i = -12.9 °C - 41.2 °C = -54.1 °C
∴ <em>q</em> = 3.580 × 10⁶ g × 0.790 J·°C⁻¹g⁻¹ × (-54.1 °C) = -1.53 × 10⁸ J
The granite block loses 1.53 × 10⁸ J.
Answer:
8.45 moles are produced
Explanation:
CaCl₂ + Na₂CO₃ → CaCO₃ + 2 NaCl
From the equation, we can see that for every 1 mole of CaCl₂ and 1 mole Na₂CO₃ will give 1 mole of CaCO₃ and 2 moles of NaCl
to calculate how many moles of CaCO₃ ,we simply multiply multiply each by the 8.45 moles of CaCl₂ which will reacts
these is because for every 1 mole of CaCl₂ and 1 mole Na₂CO₃ will give 1 mole of CaCO₃ and 2 moles of NaCl
therefore we have every 1x8.45(8.45) mole of CaCl₂ and 1x8.45(8.45) mole Na₂CO₃ will give 1x8.45(8.45) mole of CaCO₃ and 2x8.45(16.9) moles of NaCl
8.45 moles are produced in the reaction
Hey there
The answer is all in the plate tectonics :
when plate tectonics collide together in a <span>subduction zone where the crust of a sinking oceanic plate melts, they form a mountain
</span>
Hopes this Helps u :D