A soda can is made from aluminum metal. To determine how many atoms of this element is present in a certain mass of the can, we need to convert the mass into units of moles by using the atomic mass of aluminum which is 26.98 g per mol. Then, we use the Avogadro's number. It represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles or vice versa.
moles Al = 15.1 g Al ( 1 mol / 26.98 g ) = 0.56 mol Al
atoms Al = 0.56 mol Al ( 6.022x10^23 atoms / 1 mol ) = 3.32x10^23 atoms
OPTION A would be the closest.
Long strands of double-helical DNA fit into the nucleus of a single cheek cell, the double helix is packaged and wrapped around proteins, folded back onto itself and coiled into a compact chromosome. 4.
C<span>ompared to the desert fennec, you might expect the arctic fox to have shorter ears.
Given that the desert fennec fox lives in the desert, where it is quite dry and hot, and the arctic fox lives in a place where it is extremely cold, by analogy, if the first fox has long ears, the second one will have shorter ears. Because the locations they live in are quite different, their ears are going to be each other's opposites.
</span>
The Coleman report and other studies have found that<u> neighborhood and peer environment</u> is the most powerful factor in determining students' level of school achievement.
- The Civil Rights Act of 1964 required the publication of the Coleman Report. The law assigned the U.S. Office of Education two years to write a report that would analyze the disparities in educational opportunities for elementary and secondary education across the country.
- Black and white schools have roughly equal access to regional resources.
- However, the researchers came to the conclusion from the research that neither the school's infrastructure nor its resources were the most crucial indicators of a child's academic achievement. Instead the Home life and neighborhood played an important role.
- Six community elements have been identified by study as influencing student achievement: <u>financial situation, environment, educational level, communication with and support provided to schools, availability of community child care, and community cohesion (i.e., quality of education).</u>
<u />
learn more about Coleman report here: brainly.com/question/5778843
#SPJ4
