Lets go down the line, It could be a so we'll keep that in mind.
Cant be B unless the President hires a more diverse set of press secretaries, so thats a no as the current is Sarah Sanders.
Cant be C as both men are white, and the iraq war has nothing to do with minority rights nor does the fact kerry lost. So C is no.
And D is an absolute no, JFKs death postponed Civil rights if anything, and his assasin was lee harvey oswald a white self described communist, so D is no.
Only option is A, seeing as Obama was the first black president, and none of the other options make any sense.
Answer:
9 grams of methane contains a greater number of hydrogen atoms (therefore molecules) than 10 grams of ammonia
Explanation:
The number of atoms of hydrogen per molecule of ammonia = 3 atoms of hydrogen
The number of atoms of hydrogen per molecule of methane = 4 atoms of hydrogen
The molar mass of methane = 16.04 g/mol
The molar mass of ammonia = 17.031 g/mol
The number of moles of methane in 9 grams of methane = 9/16.04 ≈ 0.561 moles
The number of hydrogen atoms in 0.561 moles of methane = 0.561 × 6.02 × 10²³ × 3 ≈ 1.351 × 10²⁴ atoms of hydrogen
The number of moles of ammonia in 10 grams of ammonia = 10/17.031 ≈ 0.5872 moles
The number of hydrogen atoms in 0.5782 moles of ammonia = 0.5872 × 6.02 × 10²³ × 3 ≈ 1.06 × 10²⁴ atoms of hydrogen
Therefore, 9 grams of methane contains a greater number of hydrogen atoms than 10 grams of ammonia.
Answer:
Services industries
Explanation:
According to the textbook, Justin's in peanut butter, Rover in dog care, and Zagster in bike sharing are examples of entrepreneurial firms who are exploiting opportunities in Services industries.
A service industry consists of providing services to people as their product. they sell services by utilizing human capital and earn profit through it. For example Rover provides dog care which is a service, Zaster provides his bike for sharing. Therefore it falls in the services industry.
