The equation is not a transmutation because there is conservation of the number of atoms as well as the number of nucleons; option C.
<h3>What is transmutation?</h3>
Transmutation refers to the artificial synthesis of new elements by a nuclear reaction of the original element and nuclear particles.
In transmutation, a new element is formed and the atomic number changes.
Based on the above, it can be concluded that the given equation is not a transmutation because there is no change in atomic and nucleon number.
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Answer:
D. Element
Explanation:
Fe is an element. It isn't more than one element chemically combined (compound), it isn't a charged particle (ion), and it isn't the smallest possible unit of multiple atoms combined together (molecule).
a. 627.1 m/s
b. the rate of effusion of ethane = 1.7 faster than hexane
<h3>Further explanation
</h3>
Given
T = 200 + 273 = 473 K
Required
a. the gas speed
b. The rate of effusion comparison
Solution
a.
Average velocities of gases can be expressed as root-mean-square averages. (V rms)
R = gas constant, T = temperature, Mm = molar mass of the gas particles
From the question
R = 8,314 J / mol K
T = temperature
Mm = molar mass, kg / mol
Molar mass of Ethane = 30 g/mol = 0.03 kg/mol
b. the effusion rates of two gases = the square root of the inverse of their molar masses:
M₁ = molar mass ethane =30
M₂ = molar mass hexane = 86
the rate of effusion of ethane = 1.7 faster than hexane
Answer:
pH = 6.964 which rounds to 7.0 if 2 sig figs
Explanation:
Ka₁ * Ka₂ = x
2.4x10⁻⁴ * 4.9x10⁻¹¹ = 1.176x10⁻¹⁴
√1.176x10⁻¹⁴ = 1.084435337x10⁻⁷
pH= -log[H⁺]
pH= -log[1.084435337x10⁻⁷]
pH= 6.964796339
1.00 degree increase<span> on the </span>Celsius scale<span> is </span>equivalent<span> to a </span>1.80 degree increase<span> on the</span>Fahrenheit scale<span>. If a </span>temperature increases<span> by </span>48.0°C<span>, </span>