The answer would be A) Physical Change. When the silver tarnishes it is still remnants of silver. If it were B, the silver would change into a different substance.
F = G(m1 m2)/(r)^2
Let m1 be the mass of Mars
Let m2 be the mass of Deimos.
Therefore, 6m2 is the mass of Phobos.
We know that G, m1, and m2 are just constants.
Phobos:
Fp = G(m1 * 6m2)/(9000000m)^2 = 7 × 10^(-14) * G m1 m2
Deimos
Fd = G(m1 * m2)/(23000000m)^2 = 2 × 10^(-15) * G m1 m2
Mars exerts a stronger gravitational force on Phobos since Fp > Fd
Answer:
0.1739
Explanation:
0.800 mol of N2
0.200 mol of H2
0.150 mol of CH4
Total moles of the mixture = 0.8 + 0.2 + 0.150 = 1.150 mol
Mole fraction of H2 = Number of moles of H2 / Total moles
Mole Fraction = 0.2 / 1.150 = 0.1739
The molarity of the diluted solution is 2.36M
M₁L₁ = M₂L₂
M₂ = M₁L₁/L₂
M₂ = (5.00 M x 0.850 L)/ 1.80 L
M₂ = 2.36 M Cu(NO₃)₂
<h3>Molarity </h3>
The volume of a material present in a given volume of solution is known as its molarity (M). The number of moles of a solute in a liter of solution is referred to as molarity. The term "molarity" can also refer to a solution's molar concentration. Molarity (M) is the number of moles of a solute per liter of a solution, also referred to as the molar concentration of a solution. The symbols mol/L or, more commonly, M can be used to represent molarity. The word "molar concentration" refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. Molarity, amount, and substance concentration are other names for this term.
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