Answer:
a.
b.
Explanation:
a. First, we solve the specific heat equation as follows:
b. Then, we use the molar mass of titanium to determine its molar heat capacity, as follows:
Answer: B. 5
Explanation: A neutral atom has equal number of electrons and protons.
Whenever a neutral atom loses electron it acquires a positive charge. Thus in order to acquire 3+ charge, it must lose three electrons. Thus the number of protons exceeds the number of electrons.
Thus the number of electrons left will be (8-3) = 5 electrons.
If an atom gains electrons, it acquires a negative charge and the number of electrons exceeds the number of protons.
Answer:
The mass of the block made of lead = 255.6 grams
Explanation:
<u>Step 1</u>: Data given
Density of lead = 11.36 g/cm³
length of the block = 5 cm, 1.5 cm and 3 cm
<u>Step 2</u>: Calculate the volume of the block
Volume = length 1 * length 2 * length 3
Volume = 5cm * 1.5 cm * 3 cm
Volume = 22.5 cm³
<u>Step 3</u>: Calculate mass
Mass of the lead block = density of lead * volume
Mass of the lead block = 11.36 g/cm³ * 22.5cm³
Mass of the lead block = 255.6 grams
The mass of the block made of lead = 255.6 grams
The total pressure when the new equilibrium is stabilized is half of the initial pressure of the system.
The given chemical reaction at a stable equilibrium is,
2H₂O(g)+O₂(g) = 2H₂O₂(g)
According to the ideal gas equation,
PV = nRT
P is pressure,
V is volume,
n is moles
R is gas constant,
T is temperature.
Assuming the temperature is constant.
If the volume of the system is twice the initial volume then the total pressure at the new equilibrium can be found out as,
P₁V₁ = P₂V₂
Where, P₁ and V₁ are initial volume and pressure while P₂ and V₂ are final pressure and volume.
If V₂ = 2V₁,
P₂ = P₁/2
So, the final total pressure will be half of the initial pressure.
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The sum is 34.688 m.
If m is a variable, then the m would be attached to 34.688.