Answer:
V₂ = 379.80 mL
Explanation:
According to <em>Charles' Law,</em> "<em>At constant pressure the volume of given amount of gas is directly proportional to the absolute temperature"</em>. Mathematically it is given as,
V₁ / T₁ = V₂ / T₂ ----- (1)
Data Given:
V₁ = 185 mL
T₁ = -125 °C = 148.15 K ∴ K = °C + 273.15
V₂ = ?
T₂ = 31.0 °C = 304.15 K
Solving eq. 1 for V₂,
V₂ = V₁ × T₂ / T₁
Putting values,
V₂ = 185 mL × 304.15 K / 148.15 K
V₂ = 379.80 mL
Hence, with increase in temperature the volume has also increased.
Copper is an element.
An element is a substance that is entirely made from one type of atom.
Answer:
B.False
Explanation:
Volume is used in 3D shapes, 2D is found by area.
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Answer:
Explanation:
No atoms of Mg have a mass of 24.3050 u. That is the average mass of all the isotopes of Mg.
However, the most common isotope of Mg is ₁₂²⁴Mg (mass = 23.99 u)
The atomic number of Mg is 12. It has 12 protons.
The atomic mass of ²⁴Mg is 24. That's the total number of protons and neutrons.
p + n = 24
12 + n = 24
n = 12
An atom of ²⁴Mg has 12 neutrons.
If the atom is neutral, the number of electrons equals the number of protons.
e = p = 12
Answer:
36.2874 $
Explanation:
1 ton = 907.185 kilograms.
907.185 x 0.04 =
36.2874
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