This region has both the state with the smallest population (Wyoming) and the largest population (California).
Alaska's land area is much bigger than any other state, but it has one of the lowest populations.
The western US takes up about half of the land of the United States.
The western United States is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term the West changed. Before about 1800, the crest of the Appalachian Mountains was seen as the western frontier.
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<u>Answer:</u> The mass of water required is 18.52 g
<u>Explanation:</u>
The number of moles is defined as the ratio of the mass of a substance to its molar mass.
The equation used is:
......(1)
Given mass of magnesium hydroxide = 30.0 g
Molar mass of magnesium hydroxide = 58.32 g/mol
Plugging values in equation 1:
The given chemical equation follows:
By the stoichiometry of the reaction:
If 1 mole of magnesium hydroxide produces 2 moles of water
So, 0.5144 moles of magnesium hydroxide will react with = 
of water
Molar mass of water = 18 g/mol
Plugging values in equation 1:
Hence, the mass of water required is 18.52 g
Answer:
23.59
Explanation:
molarity=moles x1000÷volume
The answer is 1.505 × 10²² atoms
Avogadro's number is the number of units (atoms, molecules) in 1 mole of substance: 6.02 × 10²³ units per 1 mole
<span>
Number of moles (n) is the quotient of mass (m) and molar mass(Mr)
n = m/Mr
m = 5 g
Mr(Au) = 197 g/mol
n = 5g / 197g/mol = 0.025 mol = 2.5 </span>× 0.01 = 2.5 × 10⁻² mol<span>
</span>If 6.02 × 10²³ atoms are in 1 mol, x atoms are in 2.5 × 10⁻² mol:
6.02 × 10²³ atoms : 1 mol = x : 2.5 × 10⁻² mol
<span>
x = </span>6.02 × 10²³ atoms * 2.5 × 10⁻² mol : 1 mol
x = 15.05 × 10²³⁻² atoms = 15.05 × 10²¹ atoms = 1.505 × 10²² atoms
About 65%. In adult men, about 60% of their bodies arewater. However, fat tissue doesnot have as much water as lean tissue. In adult women, fat makes up more of the body than men, so they have about 55% of theirbodies made of water....
