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Reptile [31]
3 years ago
11

How is energy transferred when objects are in contact A. Conduction B. Convection C. latent heat D. Radiation​

Chemistry
1 answer:
netineya [11]3 years ago
7 0
Your answer is conduction, If there is a difference in temperature between two objects, energy is transferred from the hotter object to the cooler one. ... Energy can be transferred from a hot object to a cooler one.
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How much volume would 0.450 mol CO2 gas occupy?
umka21 [38]

Answer:

10.08 L.

Explanation:

  • If we assume that CO₂ gas behaves ideally at STP (standard T(0.0 °C) and P(1.0 atm)):

<em>It is known that 1.0 mole of ideal gas occupies 22.4 L at STP conditions.</em>

<em></em>

<u><em>Using cross multiplication:</em></u>

1.0 mole of CO₂ gas occupies → 22.4 L.

0.45 mole of CO₂ gas occupies → ??? L.

<em>∴ The volume occupied by 0.45 mole of CO₂ gas </em>= (0.45 mol)(22.4 L)/(1.0 mol) = <em>10.08 L.</em>

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If solar panels are placed under the sun at noon, then they will produce more energy than solar panels placed in the sun at dawn
sdas [7]
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3 years ago
An unknown element, X, has an atomic mass of 107.868 amu. The X-109 isotope (108.905 amu) is 48.16%. What is the amu of the othe
juin [17]

Answer:

106.905 amu is the mass of the other isotope

Explanation:

The atomic mass of an element is the sum of the masses of the isotopes multiplied by its abundance. The atomic mass of an element X with 2 isotopes is:

X = X-109*i + X-107*i

Where X is the atomic mass = 107.868 amu

X-109 = 108.905amu, i = 48.16% = 0.4816

X-107 = ?, i = 1-0.4816 = 0.5184

Replacing:

107.868amu = 108.905amu*0.4816 + X-107*0.5184

55.4194 = X-107*0.5184

106.905 = X-107

<h3>106.905 amu is the mass of the other isotope</h3>
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Sholpan [36]
Areas of rarefaction
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